Bathroom Renovation Kew
Bathroom and wet-room refurbishment in Kew, tanked, plumbed and tiled by one team.
- Rated 4.9 from 31 reviews on MyBuilder
- London guide: £6,000 to £20,000+
- 10 to 15 working days on site
- Free design visit, itemised quote
GS Renovation refurbishes bathrooms across Kew, making the most of the often tight spaces in TW9's bay-fronted Victorian and Edwardian terraces. We handle waterproofing, drainage, tiling, heating and ventilation properly, whether we are fitting a family bathroom, a walk-in wet room or a compact en-suite in the closet wing.
In Kew, a full bathroom refit typically costs £6,000 to £20,000 or more (indicative London ranges, MyBuilder and Checkatrade, 2026). GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Kew: we carry the tanking, plumbing and tiling as one contract, with the electrics certified by a registered electrician.
Price guide
| Work | Indicative London range |
|---|---|
| Bathroom renovation, full refit | £6,000 to £20,000+ |
Indicative London ranges (MyBuilder and Checkatrade, 2026), not a quotation. Prices checked September 2026. Full breakdown: Bathroom Renovation Cost.
Quick estimate for Kew
Kew range: choose above
How the job runs
- Free design visit at your Kew home and an itemised quote.
- Strip-out, then first-fix plumbing and electrics.
- Tanking to the wet areas, then tiling.
- Sanitaryware and second fix, with notifiable electrics certified by a registered electrician. Typically 10 to 15 working days on site.
Space-saving bathrooms in Kew terraces
Bathrooms in Kew terraces are frequently small, tucked into the rear closet wing or carved from a landing, so intelligent planning matters more than square footage. We rework layouts to claw back usable space, choosing wall-hung basins and WCs, slim shower enclosures and clever storage, and we can create a second en-suite off a main bedroom without losing the proportions of the original room.
Getting the services right in a period house is essential. We reroute drainage and waste to sensible falls, upgrade ventilation to control condensation in solid-wall construction, and have the electrics updated to the correct zones by a registered electrician, with any notifiable work certified under Part P. The result is a bathroom that feels considered and spacious for its size, rather than one squeezed awkwardly into an old Kew footprint.
Housing in Kew
The Council Tax list puts Kew at about 4,470 homes, 43% flats against 57% houses; 62% went up before 1919, 6% between the wars and 31% after 1945. Terraced houses make up 31% of homes here, and a terrace bathroom in Kew vents front, back or up, never into a party wall.
Re-roofing and a new bathroom in a Kew rear wing
Richmond advises a Building Notice only for very simple work, and names both installing a bathroom and re-roofing among its examples. In a Kew house those two jobs can meet in the rear wing, where a bathroom sits under its own small roof. If that covering is tired, do both in one programme. The extract duct, any new rooflight and the insulation then go in while the roof is open, rather than being cut into a new covering later.
Insulation is where the bathroom and the roof affect each other most. A bathroom is the wettest room in the house, and a cold ceiling under a poorly insulated roof is where condensation collects. With 62% of Kew homes built before 1919, a rear wing roof may have little or no insulation. We insulate it, add a vapour control layer on the warm side of the ceiling, and size the extract fan for the room, so the new ceiling stays dry through its first winter.
Wet rooms and tanking in TW9 homes
A level-access wet room or walk-in shower is a popular upgrade in Kew, but in period timber-floored terraces the waterproofing has to be done properly or problems follow. We fully tank the area with a bonded membrane before tiling, form the correct falls to the drain, and seal every junction, so water goes where it should and the structure beneath stays dry for the long term.
We finish with quality tiling, underfloor heating that warms the floor and helps the room dry, and considered lighting suited to the space. Whether it is a main family bathroom, a compact en-suite or a full wet room, we sequence the plumbing, tanking, electrics and tiling so the finished bathroom in your TW9 home is both watertight and genuinely comfortable to use every day.
- Bespoke vanity units and storage
- Complete bathroom design and planning
- Grout, silicone and trim detailing at completion
VOA Council Tax stock of properties, March 2025, for Kew Gardens. Counts rounded by the VOA.
Trusted Bathroom Renovation in Kew
Kew homeowners choose GS Renovation because we get the parts you cannot see right first, the tanking, drainage falls, ventilation and certified electrics, before the tiling ever goes on. That is what keeps a bathroom in a period TW9 terrace watertight and lasting. One team manages the whole job, backed by our founder's 30+ years on the tools.
Saiid did a complete refurbishment of our small bathroom. This involved ripping out the existing bath/shower, basin, toilet, pipework, and tiles and…
Really great job done in our bathroom to replace the shower head in the bathtub, and install a shower screen and caddy. We are very happy with the…
George always kept to commitments and arrived on time. He offered helpful suggestions during his initial visit and promptly provided a reasonably…
FAQ
Frequently Asked Questions about Bathroom Renovation Kew
Why do bathroom renovation quotes in Kew vary so much?
Bathroom renovation quotes in Kew spread widely because scope, not skill, is what differs. A figure that omits any Part P electrical certificate, any Richmond Council building control fee or the making good will always undercut one that includes them. Sequence is where cheap quotes cut corners: the waste run is fixed before the tray goes down. GS Renovation lists each element for the TW9 address against £6,000 to £20,000 or more (indicative).
Can I have a wet room in my Kew terrace with timber floors?
Yes, and it is a great use of a small space, but the waterproofing is critical on timber-floored period homes. We fully tank the area with a bonded membrane, form correct falls to the drain and seal every junction before tiling, so water cannot reach the structure below. Add underfloor heating and good ventilation and your Kew wet room stays dry, warm and problem-free.
How long will my Kew bathroom be out of use?
Plan for 10 to 15 working days, depending on how much drainage moves and whether the floor needs strengthening. In a single-bathroom house the toilet is usually reconnected each evening. The shower is the hardest thing to go without, so a gym, family or a downstairs shower room if you have one helps.
Can I move the toilet in my Kew bathroom?
Only as far as the drainage allows. The toilet needs a large waste pipe with a steady fall to the soil stack, usually on the outside of the rear wall. Running between joists is fine; crossing them is restricted. If the new position is too far, a macerator is an option but needs power and maintenance, so it is a last resort.
Where can sockets and lights go in my Kew bathroom?
Think in distances from water. Around a Kew bath or shower tray, the regulations set graded zones: fittings inside the nearest zone need a high water-resistance rating, a standard socket is ruled out entirely, and only a purpose-made shaver outlet is acceptable. Adding a circuit for heated rails or mirrors is Part P work that a registered electrician signs off.
Can I renovate the bathroom in my Kew flat above a neighbour?
Yes, but you are working over somebody else's ceiling. In a TW9 conversion, and 43% of Kew homes are flats, the bathroom may sit above a downstairs living room. A bonded membrane goes over the whole floor and up the walls before tiling. Relocating the room normally needs freeholder consent, and because the stack serves other flats, the toilet stays close to it.
How soon can work begin on a new Kew bathroom after the notice goes in?
After submitting a Building Notice in Richmond you need only wait 48 hours before starting, and building control asks for 2 days notice that work will commence. In practice the bathroom's own lead times set the start: the suite, the tray and any made-to-measure glass. The notice goes in once those are confirmed, so the strip out and first fix plumbing follow without a gap.
Is a bathroom in a post-war Kew flat different from one in a Victorian house?
Usually in the floor. 31% of Kew homes were built after 1945, and a flat of that age is more likely to have a concrete floor, so a waste cannot be dropped between joists as it can in a timber floor. A level access shower then needs a raised floor, a pump, or a tray position close to the stack. We check the floor construction at the survey, before a shower layout is promised.
Who confirms that a new Kew bathroom meets the Building Regulations?
Richmond Council runs its own building control service, which checks notifiable work in the borough against national Building Regulation standards, so for a new bathroom that is usually the inspector who signs it off. If you choose an Approved Inspector instead, they must submit an Initial Notice to the Council before work commences. Either way, keep the electrician's certificate with the completion paperwork.
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