Bathroom Renovation Wallington
Bathroom and wet-room refurbishment in Wallington, 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 fits and refurbishes bathrooms across Wallington, from compact family bathrooms in SM6 semis and terraces to en-suites in the larger Edwardian houses. We handle the waterproofing, the drainage, the tiling and the finish in-house, so your new bathroom is watertight, well ventilated and properly built to last.
In Wallington, 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 Wallington: 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 Wallington
Wallington range: choose above
How the job runs
- Free design visit at your Wallington 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.
Wet rooms and tanking in Wallington
A bathroom that lasts starts with proper waterproofing. Before any tile goes on, we tank the walls and floor of showers and wet rooms with a fully bonded membrane, so water cannot track into the structure of these older Wallington houses. Wet rooms and level-access walk-in showers suit period homes well, but they only work if the falls, the drainage and the tanking are right, which is exactly the part we never cut corners on.
Good drainage and ventilation matter just as much as the finish. We set the pipework to drain cleanly, which sometimes means raising a floor or boxing in a soil pipe in a Wallington house, and we fit extraction that clears moisture properly rather than leaving it to sit and cause damp. Getting these hidden details right is what keeps a bathroom fresh, dry and free of the black mould that plagues poorly built rooms.
Housing in Wallington
Wallington has about 7,270 homes on the Council Tax list: 30% pre-1919, 28% interwar and 42% post-war, with flats making up 45% and houses 55%. 31% of homes here are semi-detached; a semi in Wallington can take its bathroom extract and soil pipe on the flank wall, clear of the shared one.
What Sutton treats as a new bathroom in a Wallington home
Sutton's building control charging schedule has its own item for forming a new bathroom, shower room or cloakroom, with a discount rate and a higher regularisation fee. That line matters to a Wallington homeowner adding a second bathroom, a shower room in a spare bedroom or a cloakroom under the stairs. Replacing an existing bathroom like for like is a different job from forming a new one, where new drainage, ventilation and often a new extract route are involved, and it is the new room that building control is charging to check.
Because a new room like this is domestic work, a building notice is usually open, though Sutton requires full plans if the new drainage will be near or cross a public sewer. The detail still needs settling first: where the soil pipe runs and with what fall, where the extract fan discharges, and how the floor is built up for a shower tray. In a Wallington house those answers decide where the new room can go, so fix them before choosing tiles, and keep the approval paperwork for a future sale.
Space-saving bathrooms in Wallington homes
Bathrooms in Wallington's older houses are often tucked into the rear closet wing or a converted box room, so every centimetre counts. We plan layouts that make a small space feel generous, using wall-hung basins and toilets, walk-in showers in place of bulky enclosures, and fitted storage that keeps clutter out of sight. Careful positioning of the sanitaryware means even the tightest period bathroom can hold everything a family needs without feeling cramped.
Underfloor heating is a favourite in these houses, freeing up wall space and warming the floor of a room that can otherwise feel cold. We lay it beneath tile or stone, then tile the walls and floor to a high standard, sealing everything against moisture. Where there is room, we add en-suites to main bedrooms, running the necessary plumbing and ventilation, and the electrics are certified by a registered electrician as building regulations require for a bathroom.
- Wall and floor tiling in stone, porcelain or mosaic
- Shower pumps and pressure improvements where flow is poor
- Grout, silicone and trim detailing at completion
VOA Council Tax stock of properties, March 2025, for Wallington North and Wallington South. Counts rounded by the VOA.
Trusted Bathroom Renovation in Wallington
Wallington homeowners choose GS Renovation for bathrooms because we get the hidden work right, the tanking, the drainage and the ventilation, not just the tiling you can see. One team fits the whole room, so there are no gaps between trades and no finger-pointing if something goes wrong. Our founder's 30+ years on the tools stands behind every bathroom we build.
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 Wallington
Is the price of bathroom renovation higher in Wallington than elsewhere in South London?
Location is not a line on a bathroom renovation quotation in Wallington; two South London homes of the same age get similar figures within £6,000 to £20,000 or more (indicative). What separates them is condition and access at the SM6 address, and the approvals route, since the work needs Part F extraction to outside, and Part P certification for any new circuit. There is no travel surcharge within Sutton.
Can you fit a wet room in my Wallington bathroom?
Yes. Wet rooms work well in the smaller bathrooms of Wallington's older houses, giving level access and a more open feel. The key is thorough tanking, the correct floor falls and proper drainage, which we always install before tiling. We also make sure ventilation is adequate so the room stays dry. Done properly, a wet room is one of the most practical ways to use a tight space.
How long does a Wallington bathroom renovation take?
Plan for 10 to 15 working days. After strip-out the pipes and cables are repositioned, walls are boarded and tanked, and the membrane is left to cure before tiling and the final fit. In a Wallington house where the bathroom sits in the rear closet wing, extra time may go on levelling an old floor. If it is your only bathroom, arrange somewhere to shower for those weeks.
Why might the floor need raising for a new Wallington shower?
So the waste can fall to the soil stack. A low tray leaves little depth underneath, and if the joists run across the route, the pipe cannot pass through them without weakening them. Raising the floor or building a platform solves it, at the cost of a step. In an SM6 house with an external stack, the fall is set out first and the tray chosen to suit it, never the reverse.
Can an en-suite be added in a Wallington semi without a nearby soil stack?
Often, if a drainage route can be found. A new soil pipe can run inside a boxed corner or down the outside wall to a drain, keeping the falls required under Part H, and in a semi the flank wall away from next door is usually the easier side. A macerator is a last resort. Extraction must be ducted outside under Part F, and the electrics certified.
Is a combi boiler enough for two bathrooms in a Wallington home?
Often not, if both showers are used at once. A combi heats water as it flows, so two showers share one supply and both suffer. A pressurised cylinder stores hot water for several outlets but needs a cupboard for it. In a larger Wallington house adding an en-suite, a Gas Safe registered engineer should check the boiler and incoming mains flow before the bathrooms are designed.
How does a new bathroom in a Wallington flat affect the flat below?
45% of Wallington homes are flats, and a bathroom leak in a flat reaches someone else's ceiling. Tanking under a shower is the first defence, and in a flat it makes sense to carry the membrane across the whole floor, not just the shower area. A new shower or relocated WC can also change the sound path to the flat below, so resilient layers under the floor finish help. The lease may require the freeholder's consent before a bathroom moves.
What if a Wallington shower room was added years ago without approval?
It can be put right through regularisation. Sutton's charging schedule includes a regularisation fee for forming a new bathroom, shower room or cloakroom, set above the normal fee. An inspector will want to see the drainage and ventilation, so a boxed-in soil pipe or a ceiling panel may have to be opened. For a Wallington sale the certificate matters, and a buyer's solicitor will ask where it is.
Where does the waste go from a new bathroom in a Wallington terraced house?
16% of Wallington homes are terraced houses, and a mid-terrace has no side wall to carry a new soil pipe, only the front and the back. A new bathroom at the front of a terrace therefore needs a route through the house to the rear stack, across or between joists, and that route decides whether the room works at all. The structural engineer we appoint checks any joist that has to be notched or trimmed.
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