Bathroom Renovation Southall

GS Renovation refits bathrooms across Southall, from family bathrooms to en-suites and walk-in wet rooms in Southall's terraces and 1930s semis. We get the waterproofing, drainage and ventilation right first, then fit tiling, heating and fixtures that last in these solid interwar houses.

In Southall, 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 Southall: we carry the tanking, plumbing and tiling as one contract, with the electrics certified by a registered electrician.

How the job runs

1. Free design visit at your Southall home and an itemised quote.
2. Strip-out, then first-fix plumbing and electrics.
3. Tanking to the wet areas, then tiling.
4. 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 Southall bathrooms

A bathroom lives or dies on what sits behind the tiles, so every refit we do in Southall starts with proper waterproofing. For wet rooms and walk-in showers we tank the floor and walls before tiling, form the falls correctly to the drain, and seal every junction so water goes where it should and nowhere else. In the interwar houses around UB1 this protects the timber floors and the ceilings below, which is exactly where hidden leaks cause the most damage.

Ventilation and drainage are planned at the same time. We upgrade extraction to clear moisture properly, reroute or renew waste pipes where the old runs are tired, and make sure everything meets building regulations. New circuits, and changes to circuits around the bath or shower, are notifiable under Part P and certified by a registered electrician, with no planning permission needed for an internal bathroom. The result is a room that stays dry, warm and mould-free through the winters, not just one that looks good on day one.

Housing in Southall

About 14,510 homes are listed for Southall, and the mix is 64% houses to 36% flats, with 23% built after 1945, 47% in 1919 to 1939 and 30% earlier. 51% of homes here are terraced; a terrace bathroom in Southall vents front, back or up, never into a party wall.

Adding a bathroom, en-suite or WC to a Southall house

Ealing lists the formation of each new WC, shower room or bathroom as a separate building control item. A Southall refit that stays inside the existing bathroom is not a new room. An en-suite carved out of a bedroom, a shower room in a box room or a ground floor WC under the stairs is each a new room, and two of them count twice. Every new room needs extract ventilation and a waste route that reaches the stack with enough fall, and a WC needs a soil connection of the right size. Plan them together, so one application and one set of inspections covers the lot.

The floor under the new room matters as much as the plumbing. 47% of Southall homes were built between 1919 and 1939, and houses of that age typically have timber first floors whose joists were never designed for a cast iron bath full of water or a tiled wet room floor. Before a walk-in shower or a heavy stone floor goes in, the joists are checked for size, spacing and old notches from past pipe runs. Where they fall short they are strengthened, or a lighter tray is chosen, and that decision is made before the tiles are ordered.

Space-saving layouts for interwar Southall homes

Bathrooms in Southall's interwar terraces and semis are often modest, sometimes with an original layout that wastes space. We replan them to work harder, choosing space-saving sanitaryware, wall-hung units and walk-in enclosures that free up floor area, and squeezing en-suites out of a corner of a bedroom or a landing where the plumbing allows. Underfloor heating clears the wall of a radiator and warms the tiles underfoot, which suits these solid-floor and suspended-floor interwar homes well.

Tiling and finishing are where the room comes together, so we set out tiles to suit the proportions, keep grout lines clean and detail the shower and niche properly. For families in UB1 who want a second bathroom, an en-suite or a downstairs WC, we find the layout that fits the house and route the drainage sensibly. One team handles the tanking, the first fix, the tiling and the fit-out, so the bathroom is delivered right through in a single, tidy programme.

• En-suite creation in bedrooms and loft rooms
• Ventilation and extraction ducted to outside
• Soil pipe and waste re-routing within the floor build-up

VOA Council Tax stock of properties, March 2025, for all 5 statistical areas in Southall. Counts rounded by the VOA.

When comparing bathroom renovation in Southall with other work, it helps to read chimney breast removal in Southall, bathroom renovation across Ealing, bathroom fitting in London, bathroom renovation across London and Bathroom Tile Ideas.

Why Choose GS Renovation in Southall

Southall homeowners choose GS Renovation because we build bathrooms from the waterproofing up, not just the tiles down. We tank wet rooms properly, sort drainage and ventilation, arrange notifiable electrics certified by a registered electrician, and plan space-saving layouts that suit modest interwar rooms. With our founder's 30+ years on the tools, one team delivers a bathroom that stays dry and looks right for years.

Checked by Abdelaaziz Saaid, founder and director of GS Renovation Ltd (Companies House no. 14611254). Structural design is by the consulting engineer appointed to your project.