Bathroom Renovation Wimbledon
Bathroom and wet-room refurbishment in Wimbledon, 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 renovates bathrooms across Wimbledon, from family bathrooms in SW19 terraces to en-suites and loft shower rooms. We deliver properly waterproofed, well-drained and well-ventilated bathrooms that make the most of the sometimes tight spaces in these period houses.
In Wimbledon, 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 Wimbledon: 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 Wimbledon
Wimbledon range: choose above
How the job runs
- Free design visit at your Wimbledon 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.
Waterproofing and wet rooms in Wimbledon homes
In the older terraces around Wimbledon, bathrooms are often carved out of a rear closet wing or a converted box room, where the timber floors and solid walls demand proper preparation. We tank and fully waterproof wet zones before a single tile goes on, so water stays where it should over the long term. For walk-in showers and full wet rooms we form the falls carefully and seal every junction.
Good drainage and ventilation matter as much as the finish, particularly in these SW19 houses where soil pipes and windows are not always where you would want them. We rework the drainage runs where needed and fit effective extraction to keep the room dry and free of damp. The result is a bathroom that looks the part and performs quietly year after year.
Housing in Wimbledon
The valuation list shows roughly 25,760 homes in Wimbledon, of which 52% are pre-1919, 10% interwar and 38% post-1945, split 51% flats to 49% houses. Since most homes here are flats, a bathroom in a flat in Wimbledon sits over a neighbour's ceiling, so it is tanked before tiling and a moved WC needs the freeholder's licence.
Bathroom floors in pre-1919 Wimbledon houses and flats
52% of homes in Wimbledon were built before 1919, and a bathroom in a house of that age sits on timber joists that may have seen a century of leaks, notches and pipe runs. When the old suite comes out, lift the floor across the whole room rather than only where the new waste runs. Joists cut deep for earlier pipes, rot at the ends where they sit in the outside wall and boards patched over old leaks are what to look for, and each is repaired before any tile backer goes down.
In a Wimbledon flat the same floor is also the ceiling of the flat below, so repairs are planned with that owner. Notching joists for a new waste weakens a floor that may carry a heavy bath, so the waste is better run parallel to the joists, or the bath is moved so that it can be. Where a walk-in shower is planned, a waterproof membrane and a tray or former set between the joists protect the neighbour's ceiling, and an access panel to the trap saves lifting tiles later.
Space-saving en-suites in SW19 terraces
Space is often at a premium in Wimbledon's period terraces, so we plan bathrooms and en-suites that use every centimetre. Wall-hung sanitaryware, walk-in showers in place of bulky enclosures, and careful positioning of the basin and WC can turn an awkward closet wing or a slice of a bedroom into a genuinely usable en-suite without it feeling cramped.
We enjoy the finishing details that lift these rooms, from underfloor heating that warms tiled floors on cold mornings to recessed niches, considered tiling and layered lighting. New circuits or circuit changes near the bath or shower are notifiable, so a registered electrician certifies them under Part P, or they are notified to building control. The outcome is a practical, comfortable bathroom that suits the proportions of your SW19 home.
- Shower pumps and pressure improvements where flow is poor
- Wall and floor tiling in stone, porcelain or mosaic
- En-suite creation in bedrooms and loft rooms
VOA Council Tax stock of properties, March 2025, for all 7 statistical areas in Wimbledon. Counts rounded by the VOA.
Why Choose GS Renovation in Wimbledon
Wimbledon homeowners choose GS Renovation for bathrooms because we get the unseen work right: full tanking, proper drainage and real ventilation, not just a pretty tile job. We are experienced at fitting comfortable en-suites and wet rooms into the tight spaces of SW19 period terraces, and our founder's 30+ years on the tools stands behind every installation.
Saiid did a complete refurbishment of our small bathroom. This involved ripping out the existing bath/shower, basin, toilet, pipework, and tiles and…
My husband and I are extremely pleased with the work. The standard of the work is outstanding and Saiid has a great eye for detail and will not leave…
George was brilliant. Lovely bloke, very reasonably priced and a perfectionist to boot. He completed our small kitchen renovation with care and great…
FAQ
Frequently Asked Questions about Bathroom Renovation Wimbledon
Why do bathroom renovation quotes in Wimbledon vary so much?
Bathroom renovation quotes in Wimbledon spread widely because scope, not skill, is what differs. A figure that omits any Part P electrical certificate, any Merton Council building control fee or the making good will always undercut one that includes them. Sequence is where cheap quotes cut corners: the fall to the waste is set and the walls tanked before tiling. GS Renovation lists each element for the SW19 address against £6,000 to £20,000 or more (indicative).
Can you fit an en-suite into my Wimbledon period terrace?
Very often, yes. In Wimbledon's Victorian and Edwardian terraces we create en-suites from a corner of a bedroom, a landing recess or part of the rear closet wing, using wall-hung fittings and walk-in showers to save space. We handle the drainage, waterproofing and ventilation, and any new bathroom electrics are certified by a registered electrician under Part P, or notified to building control. No planning permission is needed for internal work. A listed building is the exception: work that affects its character, inside or out, including an extension or taking out a wall or chimney breast, needs listed building consent from Merton Council, and doing it without consent is a criminal offence.
How long does it take to renovate a bathroom in Wimbledon?
Budget 10 to 15 working days on site, depending on whether drainage is moving or the floor needs work. A like-for-like refit is at the shorter end. Moving the bath, toilet or shower, or tanking a wet room, takes longer. Where the house has one bathroom, the toilet is kept usable overnight wherever possible.
Can I have a wet room over the timber floor of my Wimbledon bathroom?
Yes, but the floor has to be prepared first. Timber flexes, so the joists are stiffened where needed and the floor is overboarded with a suitable backer. A former sets the falls to the drain, dropping between the joists, and the whole floor and wall zone is tanked before tiling. A timber floor that moves will crack tiles and break the seal.
Does electric underfloor heating in a Wimbledon bathroom need a new circuit?
Usually, and that makes it notifiable. Electric mats in bathrooms need their own protected supply, and Part P says new circuits in a bathroom are installed and certified by a registered electrician. The mat goes down on insulation before the tiles, and the thermostat sits outside the wet zone or is rated for it. Check the fuse board has capacity first.
Will a loft shower room in my Wimbledon house have enough pressure?
Not if hot water still comes from a gravity cylinder with a tank in the same loft, since there is almost no height to push water up. A pump solves it, or an unvented cylinder, or a combi boiler if demand is light. Waste from the loft also has to reach the soil stack, which on SW19 terraces is usually on the rear wall.
What is found under a bathroom floor in a pre-1919 Wimbledon house?
Often the marks of earlier repairs. In a house built before 1919, joists may have been notched deep for earlier pipes, softened by past leaks around the WC or decayed where they bear into a damp outside wall. Lifting the whole floor at strip-out shows which, and the repair, whether new timbers bolted alongside or replaced ends, is done before the new floor goes down.
Does adding en-suites to let rooms in a Wimbledon house need planning permission?
The en-suites themselves do not, but the use may. Merton has removed permitted development rights across the whole borough for converting homes (Use Class C3) to small houses in multiple occupation. A house fitted out with en-suites and let to separate households needs permission for that change first. A family home with an extra bathroom is unaffected.
How is the flat below protected during a Wimbledon bathroom refit?
By draining down before strip-out, sheeting the floor, and photographing the ceiling below before and after, with the photographs shared with the neighbour. With 51% of Wimbledon homes being flats, the ceiling under a bathroom is often someone else's. New pipework is pressure tested while the floor is still open, so a weeping joint shows before the boards and tiles hide it.
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