Bathroom Renovation Deptford

GS Renovation creates bathrooms, en-suites and wet rooms across Deptford, working within SE8's post-war flats, converted warehouses and few Georgian townhouses. We handle the waterproofing, drainage, tiling and heating in-house, making the most of often awkward spaces.

In Deptford, 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 Deptford: 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 Deptford 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.

Waterproofing and wet rooms in Deptford

A lasting bathroom starts with what you cannot see. Whether it is a post-war flat on a concrete slab or one of Deptford's older houses with timber floors and solid walls, proper tanking is essential before a single tile goes down. We fully waterproof the shower zone or the whole wet room, bond the membrane to the substrate, and lay falls that drain cleanly so water never sits or tracks into the structure below. This protects the finish, the structure and the home below.

Walk-in showers and level-access wet rooms are popular in these homes, but they demand careful drainage and ventilation. We set the waste and gradients correctly, fit extraction that clears moisture from rooms with small windows or none, and tile with slip-resistant finishes. Underfloor heating warms cold solid floors and dries the space between uses, whether over a post-war flat's concrete or in Deptford's cooler Georgian townhouses.

Housing in Deptford

Around 14,290 homes make up Deptford on the valuation list; 85% are flats and 15% houses, and 9% date from before 1919, 4% from between the wars and 84% from after 1945. Most homes here are flats, and a bathroom in a flat in Deptford sits over a neighbour's ceiling, so tanking comes first.

Moving the WC or bath in Deptford means an inspection

Lewisham says a building control inspection is needed where a WC or bath is installed or its position is altered. In a Deptford bathroom refit that is the line between a swap and a notifiable job. Replacing a suite where it stands is one thing. Turning the bath through ninety degrees, or moving the toilet to the other wall, changes the waste runs and the fall to the stack, and that is work the inspector sees before the floor and boxing close over it. We decide the final layout at survey, so the notice and the inspection are arranged before strip-out.

A bathroom can also arrive as part of an extension. Lewisham's building control fees chart has a line for a single storey extension including installation of a new toilet or bathroom, so a shower room built into a new rear extension on a Deptford house is one application, not two. That matters for the drainage: the new soil run from the extension is designed, inspected and tested with the extension foundations. We programme the bathroom first fix to follow the drain test, so nothing is buried before it has been seen.

En-suites and space-saving layouts in SE8

Fitting a second bathroom or an en-suite into a period Deptford townhouse usually means finding space where none obviously exists, in a box room, a wide landing or a chimney recess. We plan compact layouts that still feel generous, choosing wall-hung sanitaryware, concealed cisterns and corner or walk-in showers to free up floor area. Getting drainage to these new positions is part of the challenge, and we route it discreetly within the existing structure.

In warehouse conversions and leasehold flats around SE8, sound insulation between units and the building's own rules shape what is possible, and we work within any freeholder or managing-agent requirements. New circuits and changes to circuits around the bath or shower are notifiable under building regulations, so all wiring near water is installed to the correct zones and certified by a registered electrician under Part P, or notified to building control. We coordinate the plumbing, tiling, heating and ventilation together, delivering a finished, watertight room built to last.

• En-suite creation in bedrooms and loft rooms
• Underfloor heating and heated towel rails
• Tanking membranes and waterproof boards behind tiles

VOA Council Tax stock of properties, March 2025, for Deptford North, Silwood & Pepys and New Cross & Deptford South. Counts rounded by the VOA.

For the wider picture around bathroom renovation in Deptford, see chimney breast removal in Deptford, bathroom renovation across Lewisham, bathroom fitting in London, how we handle bathroom renovation across London and Small Bathroom Ideas.

Why Deptford Homeowners Choose GS Renovation

Deptford homeowners choose GS Renovation because we get the hidden work right, the tanking, drainage and ventilation that decide whether a bathroom lasts. We are skilled at fitting practical en-suites and wet rooms into awkward spaces, from post-war flats on a concrete slab to the few Georgian houses, we respect the fabric of listed and conservation-area homes, and our founder's 30+ years on the tools back every installation.

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.