Looking for an honest Dentexcel Harley Street review? This is the most thorough independent assessment of Dentexcel — a multi-site private dental practice with clinics on Harley Street W1, in the City at Angel Court EC2, and in Acton W3. Below we cover the clinical team’s credentials, the full treatment menu, what Diamond Apex Invisalign status actually means, CQC registration details across all three branches, what patients say across multiple platforms, pricing transparency, and everything you need to know before booking with one of Marylebone’s most established private dentists.
Last updated: 7 May 2026 — Independently researched and written by the London Reviews editorial team. We do not accept payment from the businesses we review.
At a Glance: Key Facts
| Detail | Information |
|---|---|
| Practice Name | Dentexcel |
| Harley Street Address | Harmont House, 20 Harley Street, London W1G 9PJ |
| City Address | 8 Angel Court, Copthall Avenue, London EC2R 7HJ |
| Acton Address | 2b Gunnersbury Lane, Acton, London W3 8EB |
| Harley Street Phone | 0207 636 9393 |
| City Phone | 020 7796 9393 |
| Acton Phone | 020 8993 2933 |
| Harley Street Hours | Mon–Fri 09:00–18:00 | Sat 09:00–18:00 | Sun by appointment |
| City Hours | Mon–Fri 09:00–18:00 | Sat 09:00–19:00 |
| Acton Hours | Mon–Sun 09:30–18:00 (seven days) |
| Principal Dentist | Dr Keith Cohen — Specialist in Prosthodontics & Restorative Dentistry |
| Invisalign Status | Diamond Apex Provider — top 1% in Europe, Middle East & Africa; 4,000+ cases |
| CQC Registered | Yes — all three branches; Harley Street inspected Aug 2016 (safe, effective, caring, responsive, well-led) |
| NHS Patients | Private only |
| BUPA Registered | Yes — listed on BUPA Finder; discounts available for BUPA dental insurance members |
| Finance Available | Yes — interest-free finance options available |
| Invisalign From | £1,795 (includes 3D scan, whitening and retainers) |
| Implant Systems | Straumann, Nobel Biocare, Ankylos, Camlog |
| Years in Practice | 20+ years (Dr Cohen: 30+ years clinical experience) |
| Website | dentexcel.co.uk |
Introduction: Why We Reviewed Dentexcel
Harley Street carries enormous weight as an address. Patients travel from across London — and internationally — on the assumption that a Harley Street practice represents something meaningfully different from a typical high-street dental surgery. That assumption isn’t automatically justified, which is why independent scrutiny matters. Dentexcel has operated on and around Harley Street for more than two decades, built its reputation substantially on specialist-level restorative and cosmetic dentistry, and holds the highest Invisalign accreditation available in Europe. Those credentials are real and verifiable. The question worth investigating is whether the patient experience matches them.
Dentexcel is unusual among London private practices in operating three genuinely distinct branches — the flagship at Harmont House on Harley Street, a City location at Angel Court near Bank and Moorgate, and a neighbourhood practice in Acton serving West London. That geographic spread means different patient demographics, different service offerings, and — potentially — different experiences depending on where you’re seen. This Dentexcel Harley Street review covers all three branches where the research permits, with the Harley Street flagship receiving the most detailed treatment.
Readers who’ve already consulted our Bow Lane Dental Group review or our Bespoke Dental Clinics London review will find the same framework here: verified clinical credentials, platform-by-platform review analysis, genuine positive themes and genuine criticisms, and a frank editorial assessment of whether the pricing is justified.
Locations & Getting There
Harley Street — Harmont House, 20 Harley Street, W1G 9PJ
The flagship clinic sits within Harmont House, a dedicated medical building at 20 Harley Street — a short walk north of Oxford Circus and south of Regent’s Park. Harmont House is itself a well-known address within London’s private medical world, housing numerous specialist consultants and practices. The nearest Underground stations are Regent’s Park (Bakerloo line, roughly five minutes on foot) and Oxford Circus (Bakerloo, Central, Victoria lines, about eight minutes). Bond Street (Elizabeth, Central, Jubilee lines) is ten minutes’ walk. Bus routes along Marylebone Road and Regent Street provide additional options.
City Branch — 8 Angel Court, EC2R 7HJ
The City clinic on Angel Court — running between Copthall Avenue and Throgmorton Street — sits in the dense financial district north of the Bank of England. It’s a two-minute walk from Moorgate Station (Circle, Hammersmith & City, Metropolitan lines, and National Rail) and four minutes from Bank (Central, Northern, Waterloo & City lines, and DLR). This is unquestionably the most convenient London branch for City workers; the combination of extended Saturday hours (until 7pm) and the City’s professional demographic makes it a natural fit for appointments before, during, or after the working day.
Acton Branch — 2b Gunnersbury Lane, W3 8EB
The Acton branch operates as a more accessible neighbourhood practice offering the Dentexcel brand without the central London commute. Acton Town (District and Piccadilly lines) is the closest tube station — about a ten-minute walk along Gunnersbury Lane. The branch offers seven-day opening, which makes it the only Dentexcel location available on Sundays. For West London residents who want access to a practice associated with a respected specialist team without travelling to W1 or EC2, this is a practical option for routine and general treatments.
The Clinical Team
The practice has been built around Dr Keith Cohen as its clinical figurehead, and his credentials are among the strongest independently verifiable assets Dentexcel possesses. But a practice is more than one person, and the supporting team — while less comprehensively documented in public sources — covers genuine specialist disciplines.
Dr Keith Cohen — Principal Dentist & Specialist
Dr Cohen is a GDC-registered Specialist in Prosthodontics and Restorative Dentistry. He obtained his specialist qualifications in 1999 and 2002 respectively, having trained within the London dental school system, and brings more than thirty years of clinical experience to the practice he founded. His specialism — prosthodontics — covers the restoration and replacement of teeth using crowns, bridges, implants and prosthetics, with a particular focus on complex, full-mouth rehabilitation cases that less experienced clinicians typically cannot manage in-house.
On Invisalign, his status is objectively remarkable: Diamond Apex Provider is the highest tier awarded by Align Technology (Invisalign’s manufacturer) and places Dr Cohen in the top one percent of Invisalign providers across Europe, the Middle East and Africa. He has treated over 4,000 Invisalign cases — a volume that, frankly, exceeds the combined Invisalign output of most London practices. Patient reviews consistently and specifically praise his manner: one patient described him as “the most wonderful dentist I came across — kind and caring, showing great patience while extremely professional.” That kind of unprompted specificity, across multiple independent review platforms, carries weight.
Dr Mario García Hernández — Orthodontist
Dr García Hernández brings specialist orthodontic training from Spain, adding formal orthodontic qualification to the team’s capabilities alongside the Invisalign service led by Dr Cohen. Fixed brace cases and more complex orthodontic presentations that fall outside Invisalign’s scope benefit from having a dedicated orthodontic clinician on the team rather than relying on a general dentist with an interest in the field.
Dr Ciara Ennis and Supporting Clinicians
Dr Ciara Ennis appears as a named clinician at the City branch (Angel Court) on Doctify. Patient reviews also reference “Dr Maria” warmly in the context of Invisalign consultations and treatment management, suggesting a team structure where multiple clinicians support ongoing aligner cases rather than funnelling every patient through Dr Cohen alone. The team’s published specialist disciplines span prosthodontics, orthodontics, endodontics, paedodontics and oral surgery — a breadth that makes genuine multi-specialty treatment under one roof plausible, rather than a marketing claim.
Frequently Praised Team Qualities
- Dr Cohen’s patience and calm demeanour with anxious or complex-case patients
- Clear pre-treatment explanations across both clinical and administrative staff
- Professionalism and attentiveness of dental nurses at the Harley Street branch
- Consistent hygiene standards across branches
- Dr Cohen and Dr Maria both named positively in Invisalign reviews
Services & Treatments
Dentexcel’s treatment menu is among the most extensive of any independent London private practice — not through padding, but because specialist-level dental care genuinely does encompass a wide range of disciplines that most generalist practices refer out. The following is a verified list drawn from published pages and confirmed search data.
General & Preventive Dentistry
- Dental examinations and oral health assessments
- Hygiene appointments (scale, polish, air-flow)
- Composite and tooth-coloured fillings
- Children’s dentistry (paedodontics)
- Mouth guards, occlusal splints
Cosmetic Dentistry
- Porcelain veneers (including high-end, multi-tooth smile makeovers)
- Composite bonding
- Teeth whitening (in-surgery and take-home; included in Invisalign packages)
- Smile makeovers (combined treatment planning)
- Digital Smile Design (DSD) — Dentexcel is a certified DSD clinic, using 3D facial imaging and digital planning software to visualise results before any preparation begins
Restorative Dentistry
- Porcelain crowns and bridges
- Single tooth dental implants (Straumann, Nobel Biocare, Ankylos, Camlog systems)
- All-on-4® full-arch implant restoration
- Same-Day Teeth / Teeth-in-an-Hour immediate-loading implants
- Full-mouth rehabilitation (complex prosthodontic reconstruction)
- Inlays and onlays
Orthodontics
- Invisalign clear aligners — Diamond Apex Provider, from £1,795 (including free consultation, 3D scan, whitening and retainers)
- Fixed orthodontic braces
- Post-treatment retainers and long-term maintenance
Endodontics & Oral Surgery
- Root canal treatment (endodontics)
- Tooth extractions — routine and surgical
- Wisdom tooth removal
- Bone grafting (for implant site preparation)
Emergency Dentistry
- Emergency appointments available across branches
- Treatment of acute toothache, broken teeth, lost crowns, dental trauma
The Invisalign Offer: What Diamond Apex Actually Means
Invisalign’s provider tier system runs from basic Provider through to Gold, Platinum, Diamond, Diamond Plus, and Diamond Apex — the latter being the highest level, awarded only to practices that have completed an exceptional volume of cases and maintained consistent clinical outcomes. Dr Cohen’s Diamond Apex status places Dentexcel in the top one percent of Invisalign providers across Europe, the Middle East and Africa: a genuinely elite classification, not a marketing-friendly but meaningless badge.
The practical significance for patients is considerable. Higher-tier providers have access to a broader range of aligner features, receive priority clinical support from Align Technology, and — critically — have treated the volume of cases necessary to develop confident pattern recognition in complex tooth movements. Dr Cohen has personally completed more than 4,000 Invisalign cases. That’s not a boast; it’s a clinical reality with direct implications for whether your case will be correctly diagnosed, properly planned, and competently managed through to completion.
The Dentexcel Invisalign package starts from £1,795 for an Express treatment (mild corrections), and includes a free initial consultation, a full 3D digital scan, a ClinCheck simulation showing your predicted outcome before treatment begins, professional whitening, and retainers at no additional charge. The retainer inclusion alone — which many London practices charge £200–£400 separately — represents meaningful value in a market where hidden extras are common. Full Invisalign treatment for moderate to complex cases will cost more; the £1,795 entry point is honest about being for simple cases.
Pricing & Value for Money
Dentexcel operates at the premium end of London private dentistry — a positioning that is honest given the Harley Street address, the specialist credentials, and the complexity of treatments offered. Pricing is not published on the website (a recurring frustration with premium private practices generally), but several confirmed and indicative data points exist.
Known Prices
- Invisalign Express (mild cases): from £1,795 — includes 3D scan, ClinCheck, whitening and retainers
- Implant consultations: Complimentary (free initial consultation confirmed)
- Finance: Interest-free payment plans available
- BUPA members: 10–20% discounts available depending on dentist and plan
Market Context
For context, full Invisalign from a Diamond/Diamond Apex provider in central London typically ranges from £3,500 to £6,500 depending on complexity and duration. Porcelain veneers at specialist practices on or near Harley Street routinely run from £1,200 to £2,500 per tooth. Single-tooth implants from a prosthodontist specialist in London (Dr Cohen’s qualification) generally start from £2,500 and can exceed £4,000 when bone grafting or complex surgical preparation is required. Dentexcel’s pricing, while not published, almost certainly sits within — or slightly above — these ranges. The BUPA discount and interest-free finance provision soften the immediate cost for patients in those categories.
Patient Feedback on Pricing
Reviews are genuinely mixed on this front, and this matters. The majority of patients who comment on cost describe the experience as expensive but justified — particularly those who’ve had complex Invisalign or implant treatment with Dr Cohen. However, several reviews specifically cite a lack of transparency around pricing and treatment costs as a frustration, with some patients expressing surprise at final bills relative to initial estimates. One documented Yelp review describes spending £8,000 on treatment that the patient felt resulted in complications, subsequently requiring further expenditure of approximately £10,000 with another provider — though such accounts necessarily represent one perspective and cannot be verified independently.
Our Assessment
The specialist credentials at Dentexcel — particularly Dr Cohen’s prosthodontics qualification and Diamond Apex Invisalign status — are the kind of thing that genuinely justifies a premium over generalist private dentists. Whether the markup is proportionate depends heavily on what you’re being treated for. For straightforward Invisalign, the package pricing is competitive even by London standards. For complex restorative or cosmetic work, prospective patients should request an itemised written quote before proceeding — and factor in the well-documented concern about post-treatment pricing surprises.
What Patients Actually Say: Review Analysis
Google Reviews — Harley Street Branch
The Harley Street branch maintains a positive Google presence, with the consistent pattern in reviews being praise for Dr Cohen’s personal manner and clinical precision. Review volume is moderate relative to the practice’s longevity — indicating that while satisfaction is high among those who do review, the practice isn’t actively soliciting or incentivising Google reviews at scale. Positive reviews span routine treatments, Invisalign cases, and complex restorative work. The theme of feeling “in safe hands” and the specific mention of Dr Cohen making patients with dental anxiety feel comfortable appears repeatedly and independently.
Yelp — Harley Street
Yelp hosts a small number of reviews, with the rating skewed by one highly critical long-form review — the account of a patient who spent £8,000 on crown treatment at Dentexcel, experienced ongoing gum problems that the treating dentist reportedly attributed to normal healing, and subsequently discovered significant bone loss after seeking a second opinion elsewhere. This is a serious account and should not be discounted, though it should be contextualised: it is a single documented case from Yelp’s small review pool, dating to a period now several years past, and does not reflect the pattern in more recent reviews on other platforms.
Doctify — City Branch (Angel Court)
The City branch has a Doctify profile that aggregates patient feedback, where reviews reflect the branch’s working professional clientele. The feedback is largely positive, citing efficient appointment management, professional conduct, and the convenience of City-hours access. Some patients raise the recurring theme of pricing concerns and limited transparency around treatment cost estimates — a consistent thread across Dentexcel’s platforms that the practice would benefit from addressing systematically.
CQC Inspection — Harley Street (Harmont House)
The CQC conducted an announced comprehensive inspection of the Harley Street practice (registered under Dr Keith Cohen, location ID 1-213826578) on 4 August 2016. The inspection found the practice was providing safe, effective, caring, responsive and well-led care in accordance with the relevant regulations — the most positive possible outcome under the pre-2019 dental inspection framework. Both the Angel Court City branch (1-2184261978) and the Acton branch (1-1093260216) are also CQC registered, with the City branch inspection report confirming effective infection control processes, safeguarding procedures, and regular equipment servicing. As with all dental practices in England, the CQC does not publish formal numerical ratings for dentists — registration and inspection compliance are the applicable standard.
What Patients Love Most
- Dr Cohen’s Exceptional Clinical Reputation. Across Yelp, Google, Doctify and independent forum mentions, Dr Cohen emerges as one of London’s most personally trusted private dentists. “The most wonderful dentist I came across,” “kind and caring,” “patient, thorough and professional” — these descriptors appear independently, on multiple platforms, from different types of patients. At a practice that trades significantly on his personal reputation, the fact that the reviews bear this out is commercially and clinically significant.
- Diamond Apex Invisalign Expertise. With 4,000+ completed cases and top-1%-of-EMEA accreditation, Dentexcel’s Invisalign offering is objectively among the strongest available in London. The practice’s Invisalign package — which bundles the 3D scan, digital simulation, whitening and retainers into a single transparent price — compares favourably with practices that charge for these components separately. Patients describe the Invisalign journey as well-managed, clearly explained, and producing results consistent with the pre-treatment ClinCheck simulation.
- Specialist Depth Under One Roof. Prosthodontics, orthodontics, endodontics, paedodontics, oral surgery and implant dentistry — having genuine specialists across this range within a single practice eliminates the need for external referrals in most clinical scenarios. For patients requiring complex multi-disciplinary treatment (say, orthodontics followed by implants and then prosthetic restoration), the ability to have all parties communicate directly under one practice umbrella has real clinical value.
- Digital Smile Design Technology. Dentexcel’s certified DSD (Digital Smile Design) status allows patients to visualise their proposed results — using 3D facial imaging and digital planning — before any irreversible preparation takes place. This is particularly valuable for veneer and smile makeover cases, where patient expectations and clinical reality don’t always align. Showing the patient their projected outcome in advance dramatically reduces the risk of post-treatment dissatisfaction on cosmetic cases.
- Premium Implant Systems. Using Straumann, Nobel Biocare, Ankylos and Camlog — the four most internationally respected implant brands — is a meaningful quality signal. Cheaper implant practices often use lesser-known or generic systems; the long-term consequences of implant failure are severe enough that system choice matters, particularly for patients expecting implants to last decades.
- BUPA Registration and Finance Accessibility. Being a BUPA-approved practice means members of BUPA dental insurance schemes can access discounts of 10–20% — a practical benefit that meaningfully reduces the premium pricing barrier for patients covered by employer-provided dental plans. The interest-free finance option for larger treatments addresses the same barrier for patients without insurance.
- Three-Branch Coverage Across London. The combination of a Harley Street flagship, a City branch (ideal for Bank/Moorgate professionals), and a West London neighbourhood practice in Acton is unusual and genuinely useful. Patients can start treatment at one location and transfer to another if circumstances change — a flexibility that single-site practices cannot offer.
- Twenty-Plus Years of Institutional History. Longevity on Harley Street is itself a form of quality signal. Practices that treat patients poorly don’t persist on the most competitive medical street in Britain for two decades. The depth of institutional experience — in complex rehabilitation cases, in managing patient expectations, in building the referral networks required for specialist-level work — is something a newer practice cannot replicate.
Areas for Consideration (Constructive Feedback)
- Pricing Transparency Remains a Gap. The most consistent criticism across platforms — Google, Doctify, Yelp — is the absence of published fees and, in some cases, discrepancy between initial cost estimates and final bills. For a practice that positions itself on honesty and patient-first values, this is a meaningful tension. Specialist-level dentistry is legitimately expensive; but patients who feel surprised by costs after treatment began describe it as corrosive to their trust, regardless of the quality of the clinical work. A full published fee guide — or at minimum, clear published ranges — would address this at source.
- One Serious Documented Adverse Outcome. The Yelp review detailing £8,000 spent on crown work at Dentexcel, followed by a diagnosis of significant bone loss at a subsequent practice, is a serious account that cannot simply be filed under “one unhappy patient.” It describes a clinical situation where the treating dentist reportedly attributed gum symptoms to something benign, without what appears to have been adequate investigation. The account is unverified and represents one perspective. But it is publicly available, it is specific, and prospective patients undertaking expensive restorative work should be aware of it.
- Staff Consistency Concerns at Branch Level. Some reviews of the City branch specifically note instances of what is described as unprofessional conduct among nursing and support staff — contrasting with the consistent praise for clinical staff. This branch-versus-branch inconsistency is a common growing pain for multi-site practices, and it doesn’t reflect on the clinical leadership at Harley Street. But patients choosing the City branch for convenience should factor in that the experience may not be identical to the flagship.
- Review Volume Is Modest for a Practice of This Age. For a practice that has operated for over twenty years in one of London’s most active medical districts, the publicly visible review footprint across platforms is smaller than expected. This creates a statistical vulnerability: a single critical review carries disproportionate weight when the total review count is low, which may not accurately reflect the aggregate patient experience. Encouraging verified patient feedback would serve the practice’s reputation more effectively than leaving reviews thin.
- Heavy Dependence on Dr Cohen’s Brand. Much of Dentexcel’s reputation rests on Dr Cohen personally — his name, his Invisalign tier, his patient reviews. That’s a commercially fragile position for a three-branch practice. If Dr Cohen reduces his clinical hours, retires, or takes an extended absence, the brand equity built around his specific reputation may not transfer automatically to the team supporting him. Patients booking for complex, multi-stage treatments should confirm which clinician will be leading their care at each stage.
- Sunday Availability Limited to Acton. For patients needing dental care on a Sunday — whether routine or urgent — only the Acton branch is open. The Harley Street flagship offers Sunday appointments by arrangement only, which creates a practical gap for the central and east London patients who form its core demographic.
Who Is Dentexcel Best For?
✅ Excellent choice for:
- Patients seeking Invisalign with a genuinely elite-tier provider; particularly complex cases that a lower-tier practice might reject or mismanage
- Complex restorative or full-mouth rehabilitation cases requiring a GDC-registered Specialist in Prosthodontics
- Patients considering high-end cosmetic work (veneers, smile makeovers) who want Digital Smile Design preview before committing
- City professionals who need early morning, evening or Saturday appointments near Bank or Moorgate
- Patients with BUPA dental insurance who want to use their policy at a specialist practice
- West London residents (Acton, Chiswick, Ealing corridor) who want multi-specialist access without central London travel
- Patients requiring full-arch implant treatment (All-on-4, Same-Day Teeth) with internationally recognised implant systems
⚠️ Less suitable for:
- NHS patients (private only across all branches)
- Patients on tight budgets seeking the most cost-effective option — the Harley Street address commands a genuine premium
- Those requiring IV sedation as a standard treatment option (Dentexcel’s published materials do not prominently feature sedation dentistry in the way specialist sedation practices do)
- Patients who need absolute certainty about costs upfront — the absence of published fees makes price comparison difficult before a consultation
How It Compares: Premium London Private Dentists
| Feature | Dentexcel (Harley St) | Bow Lane Dental Group (City) | Bespoke Dental Clinics (Old St) | Harley Street Dental Group (W1) |
|---|---|---|---|---|
| Invisalign Tier | ✅ Diamond Apex (top 1%) | ⚠️ Check current tier | ⚠️ Check current tier | ⚠️ Check current tier |
| GDC Specialist Prosthodontist | ✅ Yes (Dr Cohen) | ✅ Yes | ❌ Not confirmed | ✅ Yes |
| Digital Smile Design | ✅ Certified DSD Clinic | ⚠️ Check | ❌ Not confirmed | ⚠️ Check |
| Multiple London Branches | ✅ 3 (W1, EC2, W3) | ❌ 1 (City only) | ✅ 2 (EC1 + Manchester) | ❌ 1 (W1 only) |
| IV Sedation Available | ⚠️ Not prominently offered | ⚠️ Check | ✅ Yes | ⚠️ Check |
| BUPA Registered | ✅ Yes | ⚠️ Check | ⚠️ Check | ⚠️ Check |
| Published Price Guide | ⚠️ Partial (Invisalign from £1,795) | ⚠️ Partial | ❌ None | ⚠️ Partial |
| CQC Inspected & Compliant | ✅ All 3 branches | ✅ Yes | ✅ Yes | ✅ Yes |
| 7-Day Opening | ✅ Acton only; Sun by appt W1 | ❌ Not confirmed | ❌ Closed Sunday | ⚠️ Check |
Verdict: For Invisalign treatment specifically, Dentexcel’s Diamond Apex status and 4,000+ case experience puts it in a genuinely different category from any practice below Diamond tier. For complex prosthodontic and full-mouth restoration work, Dr Cohen’s specialist qualification is an objective differentiator. Against Bespoke Dental Clinics at Old Street — our most-read London dentist review — Dentexcel wins on specialist credentials and Invisalign tier but loses on sedation provision and published pricing transparency. Against Bow Lane Dental Group (City), Dentexcel competes closely on specialist depth with the additional advantage of multi-branch coverage.
CQC Registration & Regulatory Standing
All three Dentexcel branches are registered with the Care Quality Commission:
- Harley Street (Dr Keith Cohen): Location ID 1-213826578 — Inspected 4 August 2016; found compliant across all five domains: safe, effective, caring, responsive and well-led.
- City, Angel Court: Location ID 1-2184261978 — CQC registered and inspected; effective infection control, safeguarding procedures, and maintained equipment servicing confirmed.
- Acton: Location ID 1-1093260216 — CQC registered.
As noted in our other dental reviews: the CQC does not publish numerical Good/Outstanding ratings for dental practices in England under the same framework applied to GP surgeries and care homes. Registration and inspection compliance confirms the practice meets statutory minimum standards for operating regulated activities, including the treatment of disease, disorder and injury. Individual clinicians’ GDC registration can be verified independently at olr.gdc-uk.org.
How to Book an Appointment
- Online: Via dentexcel.co.uk — select branch, treatment type and preferred appointment time.
- Harley Street: 0207 636 9393 | mail@dentexcel.co.uk
- City (Angel Court): 020 7796 9393 | city@dentexcel.co.uk
- Acton: 020 8993 2933 | acton@dentexcel.co.uk
- Invisalign consultations: Free initial consultation — book directly and specify you want the Invisalign Diamond Apex consultation.
- Implant consultations: Complimentary — request a specific implant consultation to ensure appropriate time allocation.
What to Prepare Before Your First Appointment
- Bring any existing dental X-rays, particularly for implant or complex restorative consultations
- Note your BUPA membership details if applicable — confirm at booking that the dentist you’re seeing is in your BUPA network tier
- Request a written, itemised treatment plan and cost estimate before agreeing to any treatment — this is your right as a private patient
- Confirm which specific dentist will be leading your treatment, particularly for multi-stage cases
- Ask about interest-free finance at the consultation stage if treatment costs are a consideration
Frequently Asked Questions About Dentexcel Harley Street
What is Dentexcel on Harley Street and how long has it been open?
Dentexcel is a private dental practice founded and led by Dr Keith Cohen, a GDC-registered Specialist in Prosthodontics and Restorative Dentistry. The practice has operated on and around Harley Street in central London for more than twenty years, with the flagship clinic currently at Harmont House, 20 Harley Street, W1G 9PJ. It also operates a City branch at 8 Angel Court, EC2R 7HJ, and a West London practice in Acton at 2b Gunnersbury Lane, W3 8EB. The practice specialises in complex restorative work, Invisalign, dental implants, cosmetic dentistry and Digital Smile Design.
Is Dentexcel Harley Street a Diamond Apex Invisalign provider and what does that mean?
Yes — Dr Keith Cohen at Dentexcel holds Diamond Apex status, the highest tier in Invisalign’s provider accreditation system, placing him in the top one percent of providers across Europe, the Middle East and Africa. This tier reflects both case volume (Dr Cohen has treated more than 4,000 Invisalign cases) and consistent clinical outcomes. Diamond Apex providers have access to a wider range of aligner features, priority clinical support from Align Technology, and the depth of experience required to manage complex tooth movements that lower-tier providers may not attempt. Invisalign at Dentexcel starts from £1,795 and includes the 3D scan, digital simulation, whitening and retainers.
How much does Invisalign cost at Dentexcel Harley Street?
Invisalign at Dentexcel starts from £1,795 for an Express package, suitable for mild alignment corrections. This entry price includes a free initial consultation, a full 3D digital scan, a ClinCheck predictive simulation showing your expected result before treatment begins, professional teeth whitening, and retainers — components that many London practices charge separately. Full Invisalign treatment for moderate to complex cases will be priced higher; London market rates from Diamond Apex providers typically range from £3,500 to £6,500 depending on complexity and duration. Interest-free finance is available.
Is Dentexcel Harley Street registered with the CQC?
Yes — all three Dentexcel branches are registered with the Care Quality Commission. The Harley Street clinic (CQC location ID 1-213826578, registered under Dr Keith Cohen) was inspected by the CQC on 4 August 2016 and found to be providing safe, effective, caring, responsive and well-led care across all five assessment domains. The City branch (location ID 1-2184261978) and Acton branch (location ID 1-1093260216) are also CQC registered. Note that dental practices in England are not assigned numerical ratings under the Good/Outstanding framework used for GP surgeries and care homes.
Does Dentexcel Harley Street accept BUPA dental insurance?
Yes — Dentexcel is listed on the BUPA Finder as a registered BUPA-approved dental practice. BUPA dental insurance members can access discounts of typically 10–20% depending on their plan and the specific treating dentist’s network status. Patients with BUPA cover should confirm their specific plan benefits and the applicable discount rate when booking, as the exact discount varies by BUPA membership tier and the individual practitioner seen.
Where is Dentexcel Harley Street located and how do I get there?
Dentexcel’s Harley Street practice is at Harmont House, 20 Harley Street, London W1G 9PJ. The nearest Underground station is Regent’s Park (Bakerloo line, approximately five minutes on foot), with Oxford Circus (Bakerloo, Central, Victoria) about eight minutes away and Bond Street (Elizabeth, Central, Jubilee) roughly ten minutes’ walk. The address is in Marylebone, between Cavendish Square and Regent’s Park. For the City branch, the address is 8 Angel Court, EC2R 7HJ, two minutes from Moorgate Station and four minutes from Bank.
What dental implant systems does Dentexcel Harley Street use?
Dentexcel uses four internationally recognised implant systems: Straumann, Nobel Biocare, Ankylos, and Camlog. These represent the established premium tier of implant manufacturers, each with extensive clinical research backing and long-term outcome data spanning decades. The choice of implant system for a specific patient depends on clinical factors including bone density, anatomy, and the type of restoration being placed. Dentexcel also offers advanced full-arch implant treatments including All-on-4, Same-Day Teeth, and Teeth-in-an-Hour for patients requiring full tooth replacement.
Who is Dr Keith Cohen at Dentexcel and what are his qualifications?
Dr Keith Cohen is the founder and principal dentist of Dentexcel, a GDC-registered Specialist in Prosthodontics (the dental discipline covering restoration and replacement of teeth) and Restorative Dentistry. He obtained his specialist qualifications in 1999 and 2002. He has more than thirty years of clinical experience across complex restorative dentistry, implantology, cosmetic dentistry, and orthodontics. He holds Diamond Apex Provider status from Invisalign — the highest accreditation available, placing him in the top one percent of providers in Europe, the Middle East and Africa — with over 4,000 completed Invisalign cases. His name appears frequently and positively in independent patient reviews across multiple platforms.
Does Dentexcel offer payment plans or finance for dental treatment?
Yes — Dentexcel offers interest-free finance options for larger treatment courses, making specialist dental care more accessible without requiring upfront lump sum payment. Initial consultations for both Invisalign and dental implants are complimentary, allowing patients to understand their options and estimated costs without financial commitment. Patients with BUPA dental insurance may also be eligible for discounts of 10–20% on qualifying treatments. Full details of finance plans should be requested at the consultation stage, along with a written itemised treatment cost estimate.
London Reviews Verdict: Dentexcel Harley Street Review
Dentexcel earns its place on Harley Street. That’s not something we’d say of every practice on the street — the address alone attracts some clinics whose credentials don’t justify the postcode premium. Dr Cohen’s standing as a GDC Specialist in Prosthodontics and Restorative Dentistry, his Diamond Apex Invisalign status placing him in the top one percent of providers across three continents, and a clinical team that spans orthodontics, endodontics and oral surgery, together represent a genuinely strong specialist proposition. The twenty-plus years of continuous practice, the CQC inspection finding of full compliance across all five domains, the BUPA registration and the certified Digital Smile Design accreditation all point consistently in the same direction.
For specific treatments — Invisalign, full-mouth prosthodontic rehabilitation, complex veneer cases, All-on-4 or Same-Day implant work — the case for Dentexcel is clear. These are precisely the treatments where specialist credentials make a clinical difference, where the 4,000-case Invisalign track record matters, and where having a prosthodontist rather than a general dentist plan the restorative outcome is the difference between a good result and an excellent one. The Invisalign package pricing, at £1,795 for Express treatment with whitening and retainers included, is competitive even by generalist London standards — and for a Diamond Apex provider, it’s genuinely strong value.
The reservations are real but not disqualifying. Pricing transparency remains below the standard patients reasonably expect from a practice at this price point and positioning — the absence of a published fee schedule generates the billing-surprise complaints that appear periodically across review platforms and is a straightforward problem to solve. The one serious adverse outcome documented in public reviews (the bone loss case on Yelp) deserves acknowledgement rather than dismissal; while it may represent an isolated incident, it concerns the specific type of complex restorative work that forms Dentexcel’s core offer. And the practice’s heavy reliance on Dr Cohen’s personal brand, while understandable, creates succession questions that multi-stage patients should ask about directly.
Our assessment: Dentexcel Harley Street is among the most credentialled independent dental practices in London, and for patients seeking Diamond Apex Invisalign treatment or complex specialist restorative work, it sits towards the top of the shortlist. Book the free consultation, request a written quote, confirm which clinician leads your care, and verify GDC registration at olr.gdc-uk.org — then make your decision from a position of informed confidence.
Related London Reviews
- Bow Lane Dental Group Review — City of London Dentist
- The Neem Tree Dental Practice Review — Wandsworth Dentist
- Bespoke Dental Clinics London Review — Old Street Private Dentist
- Brooks and Brooks Salon Review — Covent Garden Hairdresser
- Third Space Clapham Junction Review — Luxury Gym
- Dishoom King’s Cross Review — Indian Restaurant
- The Savoy London Review — Luxury Hotel
- Mayfield Lavender Farm Review — Day Trip from London
- More London dentist reviews
- Other Harley Street reviews
- Submit your own review
Summary: Our Dentexcel Harley Street Rating
| Category | Rating | Notes |
|---|---|---|
| Clinical Credentials | ★★★★★ | GDC Specialist Prosthodontist; Diamond Apex Invisalign; multi-discipline specialist team |
| Invisalign Expertise | ★★★★★ | Diamond Apex (top 1% EMEA); 4,000+ cases; competitive package pricing |
| Patient Experience | ★★★★☆ | Dr Cohen universally praised; some branch-level staff inconsistency at City |
| Location & Access | ★★★★★ | Three London branches; Harley St, City and Acton; BUPA registered |
| Technology & Facilities | ★★★★★ | Certified DSD clinic; premium implant systems; digital planning tools |
| Value for Money | ★★★★☆ | Premium pricing justified by specialist credentials; Invisalign package good value; billing transparency a concern |
| Pricing Transparency | ★★★☆☆ | Invisalign entry price published; full fee schedule not available; some billing surprise complaints |
| Trust & Regulatory | ★★★★★ | All 3 branches CQC registered; Harley St inspected and fully compliant; BUPA approved; 20+ years operating |
| Cosmetic Dentistry | ★★★★★ | Certified DSD; specialist-led veneers; smile makeovers with prosthodontic oversight |
| OVERALL | ★★★★★ | 4.5 / 5.0 — Among London’s strongest specialist private practices; request written quote before committing |
Disclaimer: This review was independently researched and written by the London Reviews editorial team. All information is accurate to the best of our knowledge as of 7 May 2026. London Reviews does not accept payment from reviewed businesses and is not a registered medical advisory service. Nothing herein constitutes clinical advice; consult a qualified dental professional for treatment guidance.
Have you visited Dentexcel on Harley Street, in the City or in Acton? Leave your experience in the comments below, or submit your review to be considered for inclusion in future updates of this article.



