Bathroom Renovation Kennington

GS Renovation refits bathrooms across Kennington, fitting wet rooms, en-suites and family bathrooms into SE11's Georgian and Regency townhouses and its post-war flats. We get the waterproofing, drainage and ventilation right first time, which matters most in period homes with original timber floors and solid walls.

In Kennington, 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 Kennington: 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 Kennington 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 bathrooms in Kennington townhouses

Water and period timber floors are an unforgiving combination, so every Kennington bathroom we build starts with proper tanking. We fully waterproof the shower zone and, in a wet room, the whole floor, bonding the membrane before a single tile is laid. On the suspended timber floors typical of these SE11 townhouses, we make sure the substrate is rigid enough for stone or large-format tiles, because movement is what cracks grout and lets water into the structure below.

Drainage and ventilation are the other two pillars. Rerouting waste through a period floor takes planning to keep the falls right without notching joists beyond what is safe, and we extract humid air properly so damp does not settle into the surrounding plaster and joinery. Underfloor heating goes in under the tanking where the floor build-up allows, giving a warm floor and helping the room dry, which is welcome in these older Kennington houses.

Housing in Kennington

Count the homes in Kennington and you get about 8,500: 60% built since 1945, 12% between the wars and 28% before 1919, with flats at 82% and houses at 18%. A bathroom in a flat in Kennington sits over a neighbour's ceiling, so tanking comes first, which matters here because most homes are flats.

A new bathroom in a Kennington house or flat and Lambeth's rules

Lambeth charges for installation of a new WC, shower or utility as a building control item of its own. In a Kennington bathroom project the practical line runs between replacing fittings where they already are and adding them where there were none. A shower over the old bath position is a refit. An en-suite formed in a bedroom of a Kennington terrace adds a new WC and shower, with new drainage and ventilation, and belongs on a building regulations application with inspections at the stages the drainage is visible.

18% of Kennington's homes were built in 2000 or later, and in some blocks of that age bathrooms were installed as factory-made pods. A pod carries its own tray, wall panels and sealed service entries, and cutting into it can break the waterproofing and the fire-stopping at once. Ask the managing agent how your bathroom was built before any tile comes off. Where it is a pod, plan new finishes within its shell and keep the waste in its original position.

Space-saving layouts for period SE11 bathrooms

Bathrooms in Kennington's period homes are often carved out of what was never designed to be one, a landing return, a former closet wing or a corner of a bedroom. We plan layouts that make the most of tight or awkward footprints, using walk-in showers, wall-hung sanitaryware and slim vanities to keep floor space visible and the room feeling larger than it is, while still respecting the proportions of the house.

En-suites are a frequent request, tucked into a bedroom in these taller SE11 townhouses, and we route the services and ventilation so the new room works without disturbing the floor below. Internal bathroom work does not need planning permission, though new circuits and work near the bath or shower are notifiable under building regulations, so the wiring is certified by a registered electrician under Part P, or notified to building control, and the job is signed off correctly.

• Grout, silicone and trim detailing at completion
• Shower pumps and pressure improvements where flow is poor
• Notifiable bathroom electrics certified by a registered electrician under Part P

VOA Council Tax stock of properties, March 2025, for Lambeth Walk & North Kennington and Oval. Counts rounded by the VOA.

If you are weighing up options for your Kennington property, it is worth reading chimney breast removal in Kennington, bathroom renovation across Lambeth, bathroom fitting in London, bathroom renovation across London and Underfloor Heating Cost.

Trusted Bathroom Renovation in Kennington

In Kennington's period homes, a bathroom that leaks or fails to ventilate quickly damages timber floors and original plaster, so GS Renovation gets the tanking, drainage and extraction right before the tiling ever starts. With our founder's 30+ years on the tools, we deliver wet rooms, en-suites and family bathrooms that are watertight, warm and built to suit the age of the house.

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.