Ten of London’s bathroom renovation companies, scored on the same public 100-point rubric in-house trades, design, verified reviews, prime-London experience and guarantees. We’re one of the companies on this list, so we’ve shown our working and named the firms that beat us on specific measures.
The short answer:
For a full bathroom renovation in central and prime London, our 2026 rubric ranks TMT Central Bathrooms first, followed by Deluxcore and KBB Master Builder. Every company was scored the same way, from publicly available information.
We are TMT so being transparent matters more here, not less. Coming top of our rubric doesn’t mean we’re the right choice for every job, and we say exactly which firms lead on the measures we don’t win. If you want the longest-established bathrooms-only specialist, look at Deluxcore; for a TrustMark-accredited technical wet room, look at KBB Master Builder; for a full showroom experience, The London Bath Co.
Choosing a company for a bathroom renovation in London is harder than it should be. Almost every website claims to be “the best”, “London’s leading” or “trusted” words that cost nothing to type and prove nothing. Meanwhile the job itself is unforgiving: it hides plumbing, electrics, waterproofing and tiling behind finished walls, so mistakes stay invisible until they leak.
So we did something the usual “top 10” posts don’t. We wrote down a scoring rubric first, applied it to ten London firms including ourselves, and published the working. Read the disclosure below, then judge for yourself.
Full disclosure (read this first)
We’re TMT Central Bathrooms, a bathroom renovation company based on Southampton Row in Holborn, central London and yes, we’ve placed ourselves at number one on this list. You deserve to know that up front, and to see how we kept it honest:
Corrections welcome. If you run one of these companies and think we’ve got a fact wrong, email tmtcentralbathrooms@gmail.com and we’ll update it. We refresh this page yearly.
Publicly checkable information only. Scores draw on public sources company websites, Companies House, Google and Trustpilot reviews, and stated accreditations. You can verify every point yourself.
The same rubric applied to us. We ran ourselves through the identical 100-point test. We didn’t award ourselves a perfect score, and we’ve written openly about where we’re still building (see “Why we placed ourselves first”).
A rubric weighted to a stated purpose. It rewards single team accountability and prime central London experience, because those are what matter most for the full renovations we do. On a rubric weighted differently lowest price, a specific accreditation, the longest track record another firm could top it, and we tell you which.
No paid placements. Nobody paid to appear here or to be ranked. No affiliate links.
How we scored each company
A transparent 100-point rubric, weighted for full renovations in central and prime London.
Every company was marked out of 100 across six categories. The weightings are deliberate: for a full renovation in a London flat or period townhouse, who is accountable for the whole job matters more than a glossy brochure.
- Single-team accountability & in-house trades – One team owning design → plumbing → electrics → tiling → snagging, without subcontracting the risk. (25/100)
- Track record & verified reviews – Years operating, review volume and rating across Google, Trustpilot and trade bodies. (20/100)
- Design capability – 2D/3D design, bespoke layouts, showroom or in-home design service. (15/100)
- Central & prime-London experience – Genuine work in central/prime postcodes; period and modern properties; access-restricted mansion blocks. (15/100)
- Project management & communication – Dedicated project manager, clear timeline, regular updates, tidy and protected site. (15/100)
- Accreditations, insurance & guarantee – TrustMark / FMB / BIKBBI / Gas Safe / Part P, public-liability cover, written workmanship guarantee. (10/100)
Scores below are our assessment from public information as of February 2026. Corrections welcome.
The 10 best bathroom renovation companies in London
Achieving minimalist bathroom aesthetics in London homes involves adhering to the principles of simplicity, functionality, and a focus on essential elements. Minimalism is about creating a serene environment that promotes relaxation and clarity, making it a popular choice for modern homeowners.
TMT Central Bathrooms – 92 / 100
- Leads on: in-house trades & accountability · design · central-London fit Consider if: you specifically want a physical showroom to browse, or the very longest track record.
That’s us. TMT Central Bathrooms is the bathroom-renovation arm of TMT Central, a Holborn-based property-maintenance firm that delivers over 2,000 jobs a year with its own in-house tradespeople, designers, plumbers, electricians, tilers, carpenters and decorators.
For you, that means one accountable team from the first survey to the final snag, rather than a lead contractor juggling subcontractors.
Every project runs through a dedicated project manager and coordination office, we work from 2D and 3D designs before anyone lifts a tile, and we carry a 4.5-plus star Google rating (Trustindex “verified” badge).
We specialise in central and prime London from Holborn and the City to Knightsbridge, Kensington, Chelsea, Notting Hill and Hampstead across both period townhouses and modern apartments. See how we work and why we placed ourselves first, below.
Deluxcore – 90 / 100
- Leads on: Track record & review volume · single-team delivery
- Consider if: you also want your kitchen done in the same visit (they do bathrooms only)
Deluxcore does bathrooms and nothing else, and after 20-plus years across London that focus shows. Everything runs through their own designers, plumbers, electricians, tilers, carpenters and painters, with a clear process survey, 2D plan or full 3D render, written agreement, then the fit.
Reviewers repeatedly mention the daily clean-up and steady updates. A genuinely strong all-rounder; because they’re bathrooms-only, there’s no joined-up offer if you’re renovating a kitchen at the same time.
KBB Master Builder – 89 / 100
- Leads on: Accreditations (FMB, BIKBBI, TrustMark) · technical tanking & wet rooms.
- Consider if: You want a larger design showroom or a bigger public review base.
KBB Master Builder stands out on credentials membership of the FMB, BIKBBI and TrustMark which is reassuring on a wet, technical job. With 17-plus years behind them, they’re strongest on the harder briefs: Victorian properties with drainage quirks, wheelchair-accessible layouts, and wet rooms that must be tanked properly. Reviews single out flawless tiling and finish.
The London Bath Co. 87 / 100
- Leads on: showroom experience · luxury design · fully managed delivery
- Consider if: you prefer a firm that brings the showroom to you rather than the reverse
A fully managed luxury specialist with employed (not subcontracted) installers and showrooms in St John’s Wood, Blackheath and Chiswick, so you can see finishes in person before committing. Handles everything from design to installation, including shower and bath conversions, with a reputation for a smooth, well-run process.
A&G Renovations – 86 / 100
Leads on: organisation & aftercare · 3-year warranty · showrooms.
Consider if: you’re at the mid-budget end — the focus leans towards higher-spec jobs.
A&G runs more like a structured firm than a typical builder, and reviewers keep returning to the coordination: itemised quotes, a dedicated admin lead handling material orders, off-site storage until items are needed, employed in-house installers, three London showrooms and a no-quibble 3-year warranty with aftercare. Firmly at the luxury end.
Red Box London – 83 / 100
Leads on: communication · in-house multi-trade team · SW London coverage
Consider if: you want fully published fixed pricing up front always confirm the detailed quote
Red Box gets the basics consistently right clear timelines, shared updates, and a tidy crew with a solid track record across Fulham, Kensington and Richmond. Their in-house team covers plumbing, tiling and electrics, with design-led styles to choose from or customise.
Right Build Group – 82 / 100
Leads on: broad building capability · structural + refurb work
Consider if: you want a bathrooms specialist rather than a full-service builder
A full-service building company (based around Notting Hill, W11) offering bathroom refurbishment alongside kitchens, extensions, loft and basement work. A sensible pick when the bathroom is one part of a larger renovation you want under one main contractor.
FBY Construction – 82 / 100
Leads on: 22-plus years · luxury finishes · structural coordination
Consider if: your project is a straightforward like-for-like refit (may be more than you need)
With more than two decades delivering luxury bathroom renovations across Greater London, FBY coordinates structural adjustments, plumbing alterations, tiling, lighting and bespoke joinery, with strong reviews from Hampstead, Clapham and Wandsworth homeowners.
Bathroom Design Studio London – 80 / 100
Leads on: design expertise · high-end product range
Consider if: you want the same team fitting rather than design plus separate installation
A south London design studio working with leading manufacturers, providing 3D visuals before the build and a focus on high-end finishes and modern bathroom technology a strong choice when design and product selection lead the brief.
House of Fitters – 79 / 100
Leads on: one accountable team · in-home showroom service
Consider if: you prefer a bathrooms-only specialist with a longer single-niche history
House of Fitters manages design, trades and installation as one accountable team and brings sample finishes to you a convenient, joined-up option for homeowners who’d rather not traipse round showrooms.
The scorecard, side by side
| # | Company | Score | Strongest for | London focus |
|---|---|---|---|---|
| 1 | TMT Central Bathrooms | 92 | Single-team renovation, prime London | Central & prime |
| 2 | Deluxcore | 90 | Bathrooms-only specialist, track record | London-wide |
| 3 | KBB Master Builder | 89 | Technical / accessible wet rooms | London-wide |
| 4 | The London Bath Co. | 87 | Showroom-led luxury | NW / SE / W |
| 5 | A&G Renovations | 86 | Organisation & aftercare | London-wide |
| 6 | Red Box London | 83 | Communication & reliability | SW London |
| 7 | Right Build Group | 82 | Wider home refurbishment | W / central |
| 8 | FBY Construction | 82 | Structural + luxury | Greater London |
| 9 | Bathroom Design Studio London | 80 | Design & products | South London |
| 10 | House of Fitters | 79 | All-rounder, in-home showroom | London-wide |
Scores are TMT Central Bathrooms’ assessment of publicly available information, February 2026. If you run one of these firms and spot an error, email us and we’ll correct it.
Why we placed ourselves first honestly?
1. One accountable team, no subcontracting the risk
The most common way a London bathroom job goes wrong is coordination: the tiler waits on the plumber, the plumber blames the electrician, and you’re left chasing three numbers. Our plumbers, electricians, tilers, carpenters and decorators are part of the same firm that completes 2,000-plus jobs a year, coordinated by one project manager. If something’s not right, there’s one company to hold responsible us.
2. Genuinely central and prime London
We’re based in Holborn (WC1) and the bulk of our work is in central and prime postcodes the City, Knightsbridge, Kensington, Chelsea, Notting Hill, Covent Garden and Hampstead. That’s not a coverage claim; it’s where we work daily. It matters because these homes come with real constraints: leasehold and freeholder consent, mansion-block working hours, listed-building and conservation rules, tight access and awkward soil-stack runs. We plan for them because we meet them every week.
3. Design-led, with a project manager who answers the phone
Every renovation starts with a survey and a 2D/3D design so you approve the room before we build it, and each client gets a named project manager and a coordination office. Reviewers consistently name that responsiveness as the difference-maker.
Where we’re still building (and how to check us)
To keep this honest: our dedicated bathrooms review profile is younger than the twenty-year specialists above us, so our public review volume is smaller even though our rating is high that’s the main reason we didn’t award ourselves a perfect score. We’d rather you verify us than take our word for it. Ask us for our Companies House number, our public-liability insurance certificate, our written workmanship guarantee, and recent local project references before you commit. If a company can’t produce those in a day, that tells you something.
What a bathroom renovation costs in London (2026)
Indicative all-in ranges (labour + materials) for a full renovation of a typical 4–6 m² London bathroom.
London runs roughly 25–35% above the UK average, driven mainly by trade rates and the logistics of working in the capital parking, access and higher waste-removal costs. Labour typically accounts for 45–70% of a London bathroom budget, because bathrooms are tiling- and plumbing-heavy rather than cabinetry-heavy. These are market ranges to help you budget, not a quote the honest answer to “how much?” always depends on your room, your fittings and what’s behind the walls.
| Specification | Typical London range (2026) | What you get |
|---|---|---|
| Basic refit | £5,000–£8,000 | Like-for-like layout, standard sanitaryware, basic tiling |
| Mid-range renovation | £8,000–£16,000 | Full strip-out, quality suite, full-height tiling, some layout change |
| Luxury / prime-London | £16,000–£35,000+ | Bespoke design, premium stone/tiling, underfloor heating, joinery |
| Wet room conversion | £8,000–£15,000+ | Floor-to-ceiling tanking, graded drainage, glass screen |
| Underfloor heating (electric) | £80–£120/m² | Fitted under tile; typically £400–£700 for a bathroom |
| Tanking (waterproof membrane) | £400–£1,000 | Standard for walk-in showers and wet rooms |
| Moving plumbing / electrics | +£750–£2,500 | Relocating the WC, bath or drainage runs |
Sources: aggregated 2026 UK & London cost guides (Checkatrade, Pricing Penguin, and London-specific analyses). Ranges are indicative; always get an itemised written quote.
Timeline. A standard London bathroom takes roughly 7–15 working days on site; luxury or wet-room builds run to 3–4 weeks, partly because tiling and tanking need curing time between stages. The room is usually out of use throughout, so plan an alternative.
A 60-second check before you hire anyone
- Check Companies House. Confirm the company is registered, how long it’s traded, and that accounts are filed. Search the name at find-and-update.company-information.service.gov.uk.
- Ask for proof of insurance. A genuine firm carries public-liability cover and will email the certificate without fuss.
- Read recent reviews — sort by newest. Patterns from the last six months tell you more than the headline star rating. Check Google and Trustpilot, not just testimonials on their own site.
- Confirm gas & electrical competence. Any gas work must be Gas Safe registered; notifiable electrical work needs Part P sign-off. Ask for the numbers.
- Get an itemised written quote. Fixed-price, line by line, with what’s included and excluded — never a single round number given over the phone.
How to choose the right bathroom company in London
Beyond the checklist, ask every shortlisted firm these six questions:
- Are your trades in-house, or do you subcontract? Who is my single point of contact?
- Will I get a 2D or 3D design to approve before work starts?
- What’s your written workmanship guarantee — how long, and what does it cover?
- Have you worked in my type of property and postcode (period, leasehold flat, mansion block)?
- What’s your realistic timeline, and how do you handle unexpected issues behind the walls?
- Can you share two or three recent local references I can contact?
Red flags
- Won’t put the quote in writing, or quotes a full price over the phone unseen.
- Can’t produce insurance, Companies House details or references within a day.
- Pressure to decide on the spot, or a large deposit demanded before any design.
- No named project manager — just a shifting cast of subcontractors.
Why London bathrooms are their own challenge
A 4 m² bathroom in Kensington is a different job from the same room in a new-build estate, and the difference is rarely the tiles. If you’re renovating in central or prime London, budget time and money for the things that catch people out:
- Leasehold consent. Many flats need written freeholder or managing-agent approval before works, especially for anything touching drainage, waste or communal risers.
- Mansion-block rules. Restricted working hours, lift protection, deliveries and noise limits are common in prime blocks and need planning around.
- Period-property quirks. Victorian and Edwardian homes bring lath-and-plaster walls, cast-iron soil stacks, uneven floors and hidden damp — none of which show up in a quote until someone opens the wall.
- Listed buildings & conservation areas. These can restrict what you may change; sensitive work may need consent.
- Water pressure. Older flats often run gravity-fed systems, which affects shower and fitting choices — worth confirming at design stage, not after purchase.
- Access, parking & skips. Central London deliveries, permits and waste removal cost more and need booking; a company that works here daily builds this in.
This is the practical reason we weight prime-London experience so heavily: the finish is only as good as the planning behind the walls.
Planning a bathroom in central London?
Talk to TMT Central Bathrooms for a no-obligation consultation, a 3D design of your space, and an itemised written quote from one accountable, in-house team. Book a free consultation
This guide reflects TMT Central Bathrooms’ assessment of publicly available information as of February 2026. Company details, accreditations, reviews and prices change please verify current information directly with each company before making a decision.
Cost figures are indicative market ranges, not quotations. We are one of the companies ranked and have disclosed this throughout.
Spotted an error? Email tmtcentralbathrooms@gmail.com.
