Bathroom Renovation Sidcup

GS Renovation renovates bathrooms across Sidcup, from family bathrooms in 1930s semis and post-war houses to shower rooms in flats and new en-suites. We handle the waterproofing, drainage, tiling and heating in-house, with the electrics certified by a registered electrician under Part P, turning dated or awkward bathrooms into properly built, watertight spaces that last.

In Sidcup, 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 Sidcup: 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 Sidcup 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 walk-in showers in Sidcup

Whether you want a full wet room or a generous walk-in shower, the work starts below the surface. We tank and waterproof the walls and floor properly before a single tile goes on, because in a Sidcup house or flat a leak that tracks into the structure or the shared party wall causes far more damage than the bathroom itself. Correct drainage falls and ventilation are designed in from the outset to keep the room dry and healthy.

Once the room is fully tanked, we tile, fit the sanitaryware and add comforts such as underfloor heating for a warm floor underfoot. Ventilation is important in these houses, so we specify extraction that clears moisture properly, and any new circuits are notifiable under Part P and certified by a registered electrician, keeping the finished room both beautiful and compliant.

Housing in Sidcup

Of the 15,110 homes the valuation list records in Sidcup, 12% were built before 1919, 30% between the wars and 57% since 1945; 40% are flats and 60% are houses. 27% of homes here are semi-detached; a semi in Sidcup can vent its bathroom through the flank.

Adding a second bathroom to a Sidcup family house

60% of Sidcup homes are houses, and in a post-war or 1930s semi with one bathroom the second is usually wanted upstairs, as an en-suite. The first question is whether a new WC can drain by gravity to the existing soil stack. A WC needs a large pipe laid to a steady fall, and if the route crosses the joists rather than running between them, it cannot be buried in the floor. A new stack on an outside wall, or a pumped WC as a last resort, are the other answers.

A new stack on an outside wall is an external change. On the Old Forge Way estate in Sidcup, an Article 4(2) Direction brings minor alterations, including improvements to the exterior of a dwelling, within council control, and Bexley applies special controls to buildings across its conservation areas. Where a stack is needed, the rear or a side elevation away from the street is the place to run it. Inside, the new drainage is building control work, and the pipe is tested before the floor goes back.

Space-saving en-suites in Sidcup houses

The original bathrooms and box rooms in 1930s Sidcup semis are often tight, so a big part of our work is making modest spaces work harder. We plan efficient layouts, use wall-hung sanitaryware to free up floor area, and carve out en-suites from the corner of a main bedroom or a former closet space, running the drainage and ventilation neatly to suit the interwar structure.

Every fixture is placed for real, everyday use, with the plumbing and falls set out so waste runs away cleanly rather than being forced to fit afterwards. From family bathrooms to compact en-suites, we deliver the tanking, tiling, heating and electrics as one job, so you get a hardwearing, watertight room that suits the proportions of a Sidcup home.

• Full plumbing, drainage and waterproofing (tanking)
• Floor strengthening before large-format tiles or stone
• Soil pipe and waste re-routing within the floor build-up

VOA Council Tax stock of properties, March 2025, for Sidcup West, Sidcup East, Lamorbey and Foots Cray Meadows. Counts rounded by the VOA.

Work in Sidcup rarely sits on its own, so you may also want chimney breast removal in Sidcup, bathroom renovation across Bexley, bathroom fitting in London, bathroom renovation across London and Underfloor Heating Cost.

Why Sidcup Homeowners Choose GS Renovation

Sidcup homeowners choose GS Renovation because we build bathrooms to last, starting with proper tanking and waterproofing rather than tiling over problems. One team handles the drainage, ventilation, tiling, underfloor heating and certified electrics, and we plan space-saving layouts that suit tight rooms. With our founder's 30+ years on the tools, you get a watertight, compliant finish.

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.