7 Best Bathroom Renovation Companies In London

The most expensive part of a bathroom is the part you’ll never see. 

Waterproofing, falls, the membrane behind the tiles – get those wrong and the prettiest suite in the world will be leaking into the flat below within a year. 

So the search for the best bathroom renovation London company really starts with who’s doing the work, not which tap you pick. 

Here are seven companies worth your shortlist, and who each one suits.

Top 3 Best Bathroom Renovation London Companies 

• Best for a fully managed renovation: House of Fitters
• Best for technically demanding or accessible bathrooms: KBB Master Builder
• Best for design expertise & premium product sourcing: Bathroom Design Studio London

1. House of Fitters

Best for: A fully managed bathroom renovation where one team handles design, trades and installation start to finish

Bathrooms are where renovations quietly go wrong – waterproofing skipped behind tiles, falls that don’t drain, trades turning up in the wrong order. 

House of Fitters is built to take that risk off your hands by keeping the whole job under one roof: design, plumbing, tiling, electrics, and sanitaryware – all run by a single project manager from the first survey to the final seal. 

The process is structured around a home survey and a samples-to-you design visit, so you’re choosing finishes in the room and updating with the designer in real time. They handle full bathrooms, wetrooms, and showers (and kitchens too, if you’re tackling both).

Services

• Complete bathroom installations – design, strip-out, plumbing, electrics, tiling, finishing
• Wetroom installation with proper tanking, falls, and drainage
• Walk-in showers and enclosures fitted watertight
• Sanitaryware, brassware, and tiling supplied and installed
• One project manager coordinating every trade, plus full kitchen renovations

Pros

• One point of contact throughout, so there’s never a question of who’s accountable
• Samples brought to your home, making it easier to choose finishes for the space
• Real familiarity with London properties – period plumbing, leasehold flats, tight bathroom footprints

Cons

• Not set up for small one-off jobs like swapping a single tap or toilet
• A fully managed service costs more than booking trades yourself but the trade-off is that the coordination is done for you

Score: 4.9/5

2. Deluxcore

Best for: A dedicated bathroom specialist with a full in-house trade team and 2D/3D design upfront

Deluxcore does bathrooms and nothing else, and after 20-plus years across London that focus shows. The reviews are strong and high in volume, with a recurring theme of relief – homeowners who braced for a renovation nightmare and got a tidy, well-run job instead. 

Everything runs through their own specialists: designers, plumbers, electricians, tilers, carpenters, and painters – so the whole bathroom is handled by people who do this day in, day out.

The process is clear: a survey, then a 2D plan or full 3D render so you can see the finished room before committing, a written agreement, then the fit. Reviewers single out the daily clean-up and steady WhatsApp updates. 

For a standalone bathroom (wetroom, walk-in, or a full family suite) they’re a good option.

Services

• Full bathroom design, supply, and installation
• Wetrooms, walk-in showers, baths, and jacuzzis
• 2D layouts and 3D renders before work begins
• In-house plumbing, electrics, tiling, carpentry, and decorating
• Transparent written quotes and post-installation support

Pros

• A true bathroom specialist with two decades focused on this work alone
• Full in-house trade team
• 3D renders upfront, so you see the room before you commit
• Strong, high-volume reviews for tidiness, communication, and reliability

Cons

• Bathroom installs run longer on average (often three to four weeks) so it’s not the quickest route
• A few reviewers note occasional supplier delays on bespoke items, though the team manages them
• Bathrooms-only, so no joined-up offer if you’re renovating a kitchen at the same time

Score: 4.8/5

3. KBB Master Builder

Best for: Technically demanding or accessible bathrooms where accreditations and proper waterproofing matter most

KBB Master Builder stands out on this list for its credentials – it’s a member of the FMB, BIKBBI, and TrustMark, which is reassuring when you’re handing over a wet, technical job. 

Led by Artur, the company has 17+ years behind it and a review record that leans premium: reviewers repeatedly mention flawless tiling and the kind of finish you don’t usually see from a general builder. 

They’re at their strongest on the harder jobs – Victorian properties with drainage quirks, wheelchair-accessible layouts, and wetrooms that have to be tanked properly.

The waterproofing detail is where the expertise shows, with proper membranes, tanking and underfloor heating done as standard rather than as an upsell. Bathrooms are the core service, though they also take on lofts and wider refurbishments.

Services

• Bathroom and wetroom installation, design through to finish
• Full waterproofing – tanking and MAPEI/Schlüter membranes
• Floor and wall levelling, tiling, and sealing
• Underfloor heating (wet and electric) + first and second-fix plumbing and electrics

Pros

• Accreditations (FMB, BIKBBI, TrustMark) that most rivals don’t hold
• Standout reputation for tiling and high-end finish quality
• Real strength in technically difficult and accessible bathrooms
• Thorough waterproofing done properly, where shortcuts usually cause trouble later

Cons

• Firmly premium, so it’s not the pick if budget is the deciding factor
• A broader builder than a bathrooms-only specialist (with lofts and refurbishments alongside)
• A couple of reviewers mention an occasional timeline overrun or a missed initial appointment

Score: 4.7/5

4. The London Bath Co

Best for: A fully managed luxury bathroom with employed in-house installers

The London Bath Co is one of the most polished, fully managed operations on this list, and its main calling card is staffing: the installers are employed in-house rather than subcontracted, working alongside dedicated project managers. 

For a wet, detail-heavy job, that continuity matters – the people designing it and the people fitting it are part of the same team. They run a comprehensive service, from 3D design through supply and installation, under one inclusive price.

With showrooms in St John’s Wood, Blackheath, and Chiswick, it’s a showroom-led experience where you can see finishes in person first. 

Reviews are positive overall, turnarounds can be as quick as four weeks, and the no-quibble 3-year warranty plus aftercare adds reassurance. Kitchens are offered too.

Services

• Fully managed bathroom design, supply, and installation
• Employed in-house installers and dedicated project managers
• 3D design and bespoke layouts, with three London showrooms to visit
• Wetrooms, en-suites, small and luxury bathrooms
• One inclusive price, a 3-year warranty, and aftercare

Pros

• Employed installers rather than subcontractors, keeping quality control in-house
• One all-in price, with no separately quoted extras to track
• Fast turnarounds – design to installed in as little as four weeks
• A no-quibble 3-year warranty and aftercare, with showrooms across London

Cons

• Showroom-led rather than a come-to-you design service
• Firmly at the luxury end – one prospective customer felt the focus was on higher budgets, and another noted unexpected costs for extra work like replastering

Score: 4.5/5

5. A&G Renovations

Best for: A well-organised bathroom renovation with strong project coordination and genuine aftercare

A&G Renovations runs more like a structured firm than a typical builder, and that’s what reviewers keep coming back to. 

Most of their feedback is about bathrooms specifically, and a recurring detail is the coordination behind the scenes – itemised quotes, a dedicated admin lead (Gintare) handling material orders, and even off-site storage until they’re needed. 

Led by Andrius, the team draws repeated praise for tidiness, especially in flats where communal areas and neighbours are a factor. The aftercare stands out too, with clients mentioning snagging sorted promptly long after completion. 

They also offer finance through Kanda, which can help spread the cost of a larger bathroom project.

Services

• Bathroom refurbishment, design, and fitting
• Tiling, plumbing, and sanitaryware installation
• Kitchen refurbishment and wider home renovation
• Itemised quotes with material coordination and storage handled
• Finance options via Kanda

Pros

• Genuinely organised, process-driven approach with detailed, itemised quotes
• Strong reputation for tidiness and respect for shared spaces in flats
• Reliable aftercare, with snagging handled well after completion
• Finance available, useful for spreading the cost of a bigger job

Cons

• A few reviewers note the odd timeline slip and a long consultation stage
• Premium rather than budget, though clients tend to feel the value justifies it

Score: 4.4/5

6. TP Renovations

Best for: A reliable, on-time bathroom as part of a wider home refurbishment

TP Renovations has been refurbishing Central London homes since 2010, and the reviews keep landing on the same words: on time, on budget, no surprises. 

It’s run by Thomas, who customers describe as straightforward and easy to deal with, and the company is Trust A Trader verified with Gas Safe and NICEIC-accredited trades – useful reassurance for the plumbing and electrical side of a bathroom. 

Where they stand out is operational execution: clear quotes, steady updates, and projects that finish when they said they would.

They’re a full-home refurbishment outfit, though – bathrooms and kitchens sit alongside extensions, lofts, and whole-flat projects. That breadth is handy if your bathroom is one part of a larger renovation, rather than a standalone job.

Services

• Bathroom renovation, design, and fitting
• Kitchen renovation and full property refurbishment
• Extensions and loft conversions
• Bespoke carpentry and joinery
• Gas Safe and NICEIC-accredited plumbing and electrical work

Pros

• Excellent reputation for finishing on time and on budget
• Transparent, clear pricing with consistent communication throughout
• Properly accredited trades, with electrical certificates left on completion
• Broad capability, ideal if the bathroom is part of a bigger refurbishment

Cons

• A general refurbishment company rather than a dedicated bathroom specialist
• Fast, continuous workflow means it helps to have fixtures and materials ready in advance

Score: 4.3/5

7. Bathroom Design Studio London

Best for: Design expertise and premium product sourcing from a long-established North London showroom

Bathroom Design Studio London is a different kind of entry on this list – it’s a design-and-supply showroom rather than a multi-trade fitting company. 

Founded in 1999 by MD John, who has 45-plus years in the industry, the NW6 showroom spans two floors of curated displays from Europe’s leading designer brands. Where they shine is impartial advice: reviewers repeatedly describe the team as advisors rather than salespeople, suggesting layouts and products they’d never have found themselves.

The aftercare stands out too, with clients mentioning help sourcing spare parts years later. A site visit produces a 3D design and quote, though it’s worth knowing that visits are charged upfront. 

For sourcing standout products and getting the design right, it’s hard to beat.

Services

• Bathroom and cloakroom design with 3D visuals
• Supply of premium European brands – sanitaryware, brassware, baths, tiles
• Showroom consultations over two floors in North West London
• Site visits with measurements, design proposals, and quotation
• Mobility and accessibility solutions, plus spa and wellness products

Pros

• Decades of design expertise and genuinely impartial, knowledgeable advice
• Access to standout designer brands you won’t find on the high street
• Excellent, long-running aftercare, including sourcing spare parts years on
• Beautiful showroom that makes choosing products far easier in person

Cons

• Design-and-supply-led rather than a fully managed multi-trade installation team
• Site visits are charged upfront, unlike the free consultations most other companies on this list offer
• One reviewer flagged a refund taking too long to come through after a return

Score: 4.0/5

Comparison: Best Bathroom Renovation London Companies

	House of Fitters	Deluxcore	KBB Master	London Bath Co	A&G Renovations	TP Renovations	BDS London
In-house design service	✔️	✔️	✔️	✔️	✔️	⚠️	✔️
Full installation / fitting	✔️	✔️	✔️	✔️	✔️	✔️	❌
Fully managed, one PM	✔️	✔️	✔️	✔️	✔️	✔️	❌
Samples / design brought to your home	✔️	⚠️	⚠️	❌	⚠️	⚠️	⚠️
Wetroom & tanking specialists	✔️	✔️	✔️	✔️	✔️	⚠️	⚠️
3D design visuals	⚠️	✔️	⚠️	✔️	⚠️	❌	✔️
Free consultation	✔️	✔️	✔️	✔️	✔️	✔️	❌
Industry accreditations (FMB/BIKBBI/TrustMark etc.)	⚠️	⚠️	✔️	✔️	⚠️	✔️	⚠️
Workmanship warranty	✔️	✔️	✔️	✔️	✔️	⚠️	⚠️
Has a showroom to visit	❌	⚠️	❌	✔️	❌	❌	✔️
Finance options	❌	❌	❌	✔️	✔️	❌	❌

Key: 

✔️ yes / strong
⚠️ partial, limited, or unclear
❌ no / not their focus

How To Choose The Best Bathroom Renovation London Company?

The right choice comes down to the kind of bathroom you want and how much of the project you’d rather not handle. 

Here’s what to weigh up, and where these companies land.

Waterproofing & Technical Quality

Bathrooms fail where you can’t see – behind the tiles and under the floor. Proper tanking and ventilation are what separate a bathroom that lasts from one that grows mould in two years, so it’s the first thing to ask about. 

• KBB Master Builder is the standout here, with membranes, tanking, and underfloor heating done as standard. 
• Deluxcore, House of Fitters, and The London Bath Co also handle wet, complex jobs confidently. 

If you want the best bathroom renovation London has for a difficult or accessible space, this is the criterion that matters most.

Who Fits It

There’s a real split between firms that fit in-house and those that subcontract. 

• The London Bath Co employs its own installers, and Deluxcore runs a full in-house trade team – useful for quality control on a wet job. 
• House of Fitters coordinates every vetted trade under one project manager. 
• Bathroom Design Studio London is the outlier: it’s a design-and-supply showroom rather than a fitting company, so you’d arrange installation separately.

Design Process

Most of these companies design in-house, but the experience differs. 

• House of Fitters brings samples to your home so you choose finishes in the room. 
• Deluxcore, The London Bath Co, and BDS London offer 3D renders so you see the layout before committing.

If design expertise is your priority, BDS is hard to beat (though as a supplier, not your installer).

Specialist or Generalist

Decide whether you want a dedicated bathroom team or a broader builder. 

• Deluxcore and The London Bath Co are bathroom specialists. 
• KBB and A&G lean bathroom-heavy but take on wider work.
• House of Fitters & The London Bath Co do both kitchens and bathrooms.
• TP Renovations is a full-home refurbishment outfit – the best bathroom renovation company choice if your bathroom is part of a larger project rather than standalone.

Protection, Accreditations & Reviews

For a high-value job, get a written, itemised quote, staged payments, and a clear workmanship warranty before committing. 

Accreditations like FMB, BIKBBI, and TrustMark signal vetted standards – KBB, The London Bath Co, and TP hold them. 

Check reviews across Google and Houzz for consistency, not just volume (some of the best bathroom renovation companies UK buyers rate highest are the ones with steady, recent feedback on reliability and aftercare rather than a handful of glowing one-liners).

Cost & Finance

Be realistic about budget, with a contingency for the surprises that older London properties tend to hide. 

A&G Renovations and The London Bath Co both offer finance to spread the cost. 

Across The Board…

The best bathroom renovation comes from matching the company to your job – specialist and technical, fully managed, or design-led – rather than chasing the lowest quote.

Best Bathroom Renovation London FAQs 

How much does a bathroom renovation cost in London?

A bathroom renovation in London typically costs between £8,000 and £20,000, depending on size, the spec of sanitaryware and tiles, and whether it’s a straightforward refit or a full wetroom. Labour alone usually runs from around £5,500 (with materials, tiling, and disposal on top).

How long does a bathroom renovation take?

A bathroom renovation usually takes two to four weeks from strip-out to completion, though a simple refit can be quicker and a wetroom or reconfigured layout longer. Tanking and tiling need proper drying time, so a rushed timeline is rarely a good sign.

What is the correct order of work for a bathroom renovation?

The correct order for a bathroom renovation is strip-out, first-fix plumbing and electrics, plastering and tanking, tiling, then second-fix fitting of sanitaryware and brassware, and finally sealing and snagging. Getting this sequence wrong is the most common cause of leaks and rework.

Is it worth renovating a small bathroom?

Renovating a small bathroom is worth it, since a well-designed compact space can add real value and the best bathroom renovation companies are often strongest at clever small-space layouts. Wall-hung units, walk-in showers, and large-format tiles all make a small bathroom feel bigger.

Conclusion

The best bathroom renovation in London comes down to matching the company to your job.

Deluxcore is the dedicated specialist with a full in-house team, while KBB Master Builder is the one for technically tricky or accessible bathrooms where waterproofing and accreditations matter. The London Bath Co offers a polished, luxury service with employed installers, and A&G Renovations stands out for organisation and aftercare.

TP Renovations suits a bathroom that’s part of a wider refurbishment, and Bathroom Design Studio London is the place for design expertise and standout products. If you want the whole job (design, trades, installation) managed by one accountable team that brings the showroom to you, House of Fitters is the strongest all-rounder of the seven. 

The best bathroom renovation London company is the one whose process matches your project – so shortlist a few, compare them, and choose with confidence.