The 9 best bathroom renovation companies in London for 2026, and how to choose
Beams is our pick for the best bathroom renovation company in London for 2026. We would say that, because we are Beams, so treat the ranking as a starting point and the rest of this page as the useful part: why waterproofing is the thing that decides a bathroom, the five questions that predict whether the job goes well, what a London bathroom costs, and honest profiles of the other companies worth looking at.
There is no independent league table for London bathroom renovation companies. Nobody audits this category. Every "best of" list you will find, including this one, is written by someone with an interest, and the ones that do not admit it are the ones to be most careful with.
How we built this list
We started from the companies that appear repeatedly in London renovation searches and industry coverage, then read each one's own website in August 2026 and recorded only what they publish about themselves: how long they have traded, where they work, what they specialise in and how they describe their own service.
We have deliberately not scored the other companies against our five criteria. Their contract terms, vetting and warranty cover are not consistently published, they change, and we are not a neutral party. Publishing a grade we cannot stand behind would be worse than publishing nothing. So the criteria below are yours to apply, to us as much as to anyone else.
Why a bathroom is the room where fitter and renovation company matter most
A bathroom fails differently to every other room. The waterproofing, the falls in the floor and the membrane behind the tiles are the parts nobody sees and everybody eventually notices, usually as a stain on the ceiling below.
Plenty of companies can fit sanitaryware and tile a wall. Fewer are set up to get the waterproofing, the drainage and any structural or plumbing change right at the same time, with one person accountable for how they meet.
That is the real dividing line here. A bathroom fitter installs what is specified into a room that is already sound. A bathroom renovation company takes responsibility for the room being sound in the first place, and for everything that goes into it afterwards.
The five checks that predict whether a bathroom renovation goes well
Most comparisons weigh up portfolios and star ratings. Both matter, and neither tells you what happens when something goes wrong, which is the thing a first-time renovator cannot work out from a website.
These five do a better job. The middle column is the part worth memorising, because most people know to ask about price and warranty and have no idea what a good answer sounds like, so they accept a vague one.
What to check | What to ask | A good answer sounds like | Why it matters |
|---|---|---|---|
Who is doing the work | How did you check the builder who will actually be on my job, and what did you find? | We met them in person, took references on recent jobs, inspected work they finished this year, and here is their public liability certificate. | A company that subcontracts to whoever is free that month has checked nothing on your behalf. |
Whether the price is fixed | Is this a fixed price or an estimate, and what happens if the subfloor or the pipework turns out to be a problem? | Fixed, in writing, before the old suite comes out, and anything found underneath is priced and approved before it is done. | Once tiles and a suite come off, subfloor and pipework problems surface. A fixed price decides whose problem that is. |
Where your money sits | When do I pay, and who holds the money between my payment and the work being done? | Staged payments tied to work you have signed off, held securely and released only on your approval. | Pay ahead of the work and you are an unsecured creditor of your builder. |
What happens if it fails | What is covered if the finish fails six months after handover, and who pays if the builder is no longer trading? | Twelve months on workmanship, in writing, with cover that still stands if that builder has gone. | A warranty is only worth as much as whoever is still standing behind it. |
Who owns the waterproofing | Who is responsible for the waterproofing, and to what standard? | One named party, using a specified system, with the tanking and the falls set out before tiling starts. | Waterproofing is the one element you cannot inspect once it is finished, and the one that costs most to put right. |
Ask all five. Most companies answer one or two well.
What a London bathroom actually costs
Almost no "best bathroom companies" page will tell you this, which is odd, because it is usually the second thing you want to know. Prices vary by company, but the job has a shape, and knowing it stops you being surprised by a quote or reassured by a cheap one.
Project | Typical cost including VAT |
|---|---|
£13,700 to £20,000, typically around £15,700 | |
Adds the tanking and the floor build-up to a standard bathroom | |
Driven by how far the existing plumbing runs sit from the new room | |
Priced by area, and separately from the suite |
Two things to hold onto. A quote that does not name a waterproofing system is not a complete quote, and it is the cheapest thing to leave vague and the most expensive thing to get wrong. And a price well below these ranges is usually a narrower scope rather than a bargain.
The companies
1. Beams
Beams is not a builder, and that is the whole design of it. It sits between you and the trade, and you can take as much or as little of it as your project needs. Some people want the lot: a design produced in house, then a vetted builder matched to deliver it. Others arrive with drawings already done and want only the builder and the protections. Both are normal.
What stays constant is the structure around the job. Builders in the network have been met in person, had references taken and recent work inspected, and each carries at least £6m of public liability cover. Your build is priced and delivered on a fixed-price contract signed before anyone starts, and the builder runs it day to day rather than Beams. Your money moves in stages, held securely, released when you sign off the stage it belongs to. Workmanship is warranted for 12 months, and if that builder leaves the network inside the year, Beams puts up to £10,000 behind putting it right.
Beams is a certified B Corp and has delivered hundreds of London renovations across kitchens, bathrooms, extensions and whole houses. On Beams' own figures, once a design and scope are agreed, projects run an average of 1.8 per cent over budget and finish around 2 per cent ahead of schedule.
2. Hugo Oliver
Hugo Oliver is an award-winning bathroom design and installation company with over 12 years transforming London bathrooms, running a design studio on Tranquil Vale in Blackheath and a showroom in Charlton. The service is end to end, from 3D CAD design consultation through supply, installation and aftercare, covering family bathrooms, en-suites, wet rooms and cloakrooms, with projects named in Blackheath, Bermondsey, Rotherhithe, Docklands, Canary Wharf and Bromley. There is a kitchens arm as well. It displays a Best of Houzz Service Award 2026.
3. Deluxcore
Deluxcore is a London bathroom design and fitting specialist with over 20 years of experience, working from Lavender Hill in Battersea and Scrubs Lane in NW10, with an unusually long stated coverage list running from Westminster, Mayfair and Belgravia through to Wimbledon, Ealing and Hammersmith. It handles complete installation, refurbishment and renovation, wet rooms, walk-in showers, cloakrooms, en-suites and underfloor heating, residential and commercial, with 2D and 3D design. The trades are in house: designers, carpenters, electricians, plumbers and tilers. It is not a showroom.
4. The London Bath Co.
Founded over 30 years ago, The London Bath Co. describes itself as a bathroom design, supply and installation specialist covering the whole of London, with three showrooms in St John's Wood, Blackheath and Chiswick. Installation is in house rather than subcontracted, with dedicated project managers, and the offer extends to full home renovations, interiors and a turnkey service for landlords. It displays Which? Trusted Traders and TrustMark. Kitchens run through a sister company.
5. TP Renovations
Established in 2010, TP Renovations is a renovation and refurbishment contractor rather than a showroom, covering a stated list of 18 London areas including Fulham, Kensington, Camden, Islington, Westminster, Shoreditch, Hackney, Canary Wharf, Chelsea, Greenwich, Clapham, Battersea, Wandsworth, Richmond and Croydon. Bathroom and kitchen renovation are the headline services, alongside full property refurbishment, loft conversions, house extensions and general maintenance. It links to a TrustATrader profile.
6. West One Bathrooms
Trading since 1978 and now a third-generation family business, West One Bathrooms has six London showrooms including Mayfair, Chelsea, Design Centre Chelsea Harbour, Clerkenwell, Battersea and Wandsworth, plus Cobham and Tunbridge Wells. It offers an award-winning design service and access to over 750 suppliers, covering everything from large bathrooms to small wet rooms, and is UK or European distributor for ANN SACKS, New Ravenna and Kallista. One important distinction: it does not install, and provides an introductory installers list instead.
7. NU Projects
Trading since 2010 and describing itself as a premium design and build service, NU Projects brings architecture, interior design, project management and construction under one roof, with mechanical and electrical work and bespoke joinery in house too. It works across Prime Central London and the south west, naming Fulham, Battersea, Wimbledon, Barnes, Chiswick, Richmond, Chelsea and South Kensington, and takes on renovations, extensions, basements, lofts and new builds. It displays NICEIC and Gas Safe registration.
8. houseUP
houseUP is a London construction company specialising in high-end residential and commercial work, offering design and build while partnering with architecture practices on the design side. It has offices in Covent Garden and Hackney, with projects named in Belgravia, Chelsea, Highgate, South Kensington, Shoreditch, Hammersmith, Chiswick and Greenwich. Alongside renovations, extensions, lofts and basements it lists conservation architecture, structural glass, soundproofing and sash window work, and says it has handled basements in listed buildings and conservation areas.
9. LCCL Construction
LCCL Construction is an award-winning design and build company trading for over 20 years, registered as House Extension Company London Limited. It works from Finchley across all of London and into Hertfordshire, naming Barnet, Hampstead, Highgate, Islington, Camden, Enfield, Putney, Chelsea, Fulham, Ealing, St Albans and Watford, and reports more than 350 completed projects. Loft conversions and extensions are the core, with basements and new builds alongside, and it offers architecture, planning and party wall services separately. It is an NFB member and an LABC Registered Partner, and won an LABC regional award in 2024.
Every profile above is drawn from what the company publishes about itself, checked on 11 August 2026. None of it tells you how they contract, how they hold your money or what they warrant, because that is generally not published. Which is exactly why the five questions above are worth asking out loud.
When Beams is not the right choice for you
Worth saying, since we put ourselves first.
Beams is built for bathrooms with real scope. If you are swapping a suite in a sound room with nothing moving and the tiling staying put, a good local fitter will be faster and cheaper, and the structure around a Beams project is overhead you do not need.
It is a London and surrounding area service. Outside that, we are the wrong call.
And if you actively enjoy running a build, holding your own contracts with each trade and carrying the risk yourself, you will find the fixed price and the staged sign-offs constraining rather than reassuring. Some people genuinely prefer to project manage. That is a legitimate way to renovate and it is not what we sell.
How to choose between them
Start with what the bathroom actually needs. A straight swap of a suite in a sound room is a different job from a wet room, a layout change, or an ensuite carved out of a bedroom. A fitter and a renovation company are not quoting on the same work even when the numbers look close.
Then be honest about how much you want handled. Design and builder together, or just the builder because the design is done.
If the bathroom is one part of a bigger project, we have run the same exercise across the wider London renovation comparison for whole-house work.
Then put the five questions to everyone on your shortlist, including us. Ask to see an actual fixed-price contract rather than being told the price is fixed. The answers will separate the shortlist faster than any portfolio.
FAQs
Is this an independent ranking?
No. Beams wrote this page and put itself first. There is no independent audit of London bathroom renovation companies, so any list you find is written by someone with a position. We have set out our criteria, dated our research and left the other companies ungraded rather than marking our own homework twice.
In what order should a bathroom renovation happen?
Waterproofing and first-fix plumbing have to be right before tiling starts, not corrected afterwards. Here is the sequence that avoids the usual snags.
What should a renovation contract actually include?
A fixed price in writing before work starts, payment stages tied to sign-off points, and named responsibility for each part of the job. If what you have been given is an estimate rather than a fixed quote, the gap between an estimate and a fixed quote.
How do I check a renovation company is legitimate before signing?
Ask for references you can call, check the insurance certificate yourself rather than taking their word, and be wary of a large deposit before any work starts. Those three checks catch most of it.
Do bathroom renovation companies offer payment protection?
Some do, most do not. Beams holds milestone payments securely and releases them when you approve each stage, behind a 12-month workmanship warranty. How the payment protection works is worth reading before you compare it with anyone else's terms.
Find out what your project will cost
Tell us what you want from your bathroom and we will get you up to three comparable quotes from vetted London builders, with waterproofing priced in rather than assumed.