Bathroom Renovation Hounslow
Bathroom and wet-room refurbishment in Hounslow, 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 renovates bathrooms across Hounslow, working within the flats, terraces, interwar semis and post-war houses found from Hounslow town centre to Heston and Feltham. We deliver fully waterproofed bathrooms, wet rooms and en-suites that make the most of every inch, whatever the age of the home.
In Hounslow, 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 Hounslow: 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 Hounslow
Hounslow range: choose above
How the job runs
- Free design visit at your Hounslow 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 Hounslow homes
A bathroom in an older Hounslow house has to cope with solid walls, suspended timber floors and old drainage runs, so we start with proper waterproofing. We tank the wet areas fully before tiling, forming reliable falls to the drain, so a walk-in shower or a full wet room stays dry behind the finishes for the long term rather than letting moisture into the period fabric of the house.
Ventilation and drainage get equal attention. Many Hounslow bathrooms, in a terrace's rear closet wing or an internal room in a flat, have limited natural airflow, so we fit effective extraction to keep condensation and mould at bay. We reroute waste pipes where the layout needs it, add underfloor heating for comfort on a cold tiled floor, and finish with tiling that suits the age of your TW3, TW4 or TW5 home.
Housing in Hounslow
Roughly 111,270 dwellings sit on the valuation list for Hounslow. 50% are houses and 50% flats, and by age 16% predate 1919, 28% are interwar and 55% post-war. 26% of homes here are terraced; a terrace bathroom in Hounslow vents front, back or up, never into a party wall.
Adding a new bathroom in Hounslow and when building control steps in
Hounslow lists installing a new bathroom among the smaller projects that usually go on a building notice. That is the line to watch. Swapping a tired suite for a new one in the same room is a different job from creating a bathroom where there was none, such as an en-suite taken from a bedroom or a shower room on a landing. A new room brings drainage, ventilation and electrical work that building control needs to know about, so get the notice in before the first pipe is run.
Plan the inspections into the programme. Work can start 48 hours after the notice is given, but the waste pipes and their fall to the stack should be seen before the floor is boarded and the walls are tanked, since those are the parts hidden first. Hounslow asks for inspection requests with at least 1 working day's notice. When the room is finished and inspected, Hounslow issues a certificate of completion, which is the document a buyer will want for an added bathroom in a Hounslow home.
Space-saving bathrooms in Hounslow terraces
Hounslow's flats and terraces rarely offer generous bathrooms, so layout planning does the heavy lifting. We plan around the awkward footprint of a closet wing or internal room, using wall-hung sanitaryware, recessed niches and slim fittings to free up floor space and make a small room feel larger without moving the structure.
En-suites are a popular addition, often carved from a corner of a bedroom or a landing. We handle the drainage and ventilation that make an upstairs en-suite work and connect it properly to the existing soil stack, and the notifiable electrical work is certified by a registered electrician under Part P. Every bathroom is delivered by one team, from first fix through tanking and tiling to the final seal.
- Walk-in showers and wet-room installation
- Wall and floor tiling in stone, porcelain or mosaic
- Concealed cisterns, frames and wall-hung sanitaryware
VOA Council Tax stock of properties, March 2025, for all 29 statistical areas in Hounslow. Counts rounded by the VOA.
Trusted Bathroom Renovation in Hounslow
Hounslow homeowners choose GS Renovation because we get the hidden work right, the tanking, drainage and ventilation that decide whether a bathroom lasts. We plan space-saving layouts to suit the borough's flats and houses, coordinate every trade in-house and finish to a high standard. Our founder's 30+ years of bathrooms back the result.
Saiid did a complete refurbishment of our small bathroom. This involved ripping out the existing bath/shower, basin, toilet, pipework, and tiles and…
I am very happy to recommend George after he completed the work on my 2 bathrooms. He worked very hard to make sure everything was completed and even…
George always kept to commitments and arrived on time. He offered helpful suggestions during his initial visit and promptly provided a reasonably…
FAQ
Frequently Asked Questions about Bathroom Renovation Hounslow
Are there hidden costs with bathroom renovation in Hounslow?
The risk of extra cost on bathroom renovation in Hounslow sits in what is concealed. GS Renovation lists what the TW3 survey could not inspect, so you know where the figure within £6,000 to £20,000 or more (indicative) might move. The route for an extract duct to outside decides how much ceiling comes down, which is why that point is opened up early. Any Hounslow Council building control fee and any Part P electrical certificate are priced from the start.
Can you fit an en-suite in a bedroom of my Hounslow house?
Yes, en-suites are a popular project in Hounslow homes. We assess where it can connect to the existing soil stack, plan the drainage falls and fit proper ventilation so it works without condensation problems. No planning permission is needed for an internal en-suite, though new circuits, and work to circuits near the shower, are notifiable under Part P and certified by a registered electrician, with the certificate handed to you at the end. A listed building is the exception: work that affects its character, inside or out, including an extension or taking out a wall or chimney breast, needs listed building consent from Hounslow Council, and doing it without consent is a criminal offence.
Can a bathroom on a timber floor in Hounslow become a wet room?
Yes, with the floor prepared first. Timber flexes, so the joists are stiffened and a ply deck laid, and the fall to the drain is formed within the floor depth, which depends on joist direction. The entire floor and lower walls are tanked before tiling. Skipping the stiffening leads to cracked grout and a leak through the ceiling below.
Will the joists in a Hounslow house take a cast iron or stone bath?
Not always without help. A filled cast iron or stone bath with a person in it is a heavy load on a small area, and bathroom joists in older houses are often notched for pipes. The engineer checks span and notching, and may specify extra joists or placing the bath across them near a bearing wall.
Why is the shower pressure weak in older Hounslow houses?
Usually because the hot water comes from a cylinder fed by a tank in the loft, and a shower close below it has little head of water. The choices are a pump, an unvented cylinder or a combi boiler, each with trade-offs in flow and space. That decision comes before first fix, as it changes the pipework.
How long does a bathroom refit in a Hounslow home take?
Allow 10 to 15 working days. The order inside that period is fixed: strip-out, first fix pipes and cables, waste falls set before any shower tray, then tanking left to cure before a single tile goes on. New circuits and work in the zones around the bath or shower are notifiable and certified by a registered electrician, so the certificate arrives at the end.
Can the joists in a newer Hounslow house be notched for bathroom pipes?
Not in the way old timber can. In Hounslow 20% of homes were built in 2000 or later, and houses of that age may have engineered timber joists whose top and bottom flanges must not be cut. Pipes then pass through the holes the manufacturer allows, or run in a raised floor or boxing. Lift a board and identify the joist type before the layout is drawn, because it decides where the waste can run.
Who needs to agree a bathroom layout change in a Hounslow flat?
The freeholder first, and the flat below is the one to think about. With half of Hounslow's homes being flats (50%), a moved shower or WC can put a wet floor over a neighbour's living room, and leases commonly control that. The soil stack is often shared, so a WC moved away from it needs a route and fall that stay inside your flat. Get the licence in writing, with the waterproofing and access for repairs agreed, before tiling.
What changes for a bathroom in one of Hounslow's pre-1919 houses?
The walls, mostly. In Hounslow 16% of homes were built before 1919, and in a house of that age a bathroom can sit between solid brick walls finished in lime plaster. Tanking straight over old lime plaster risks it letting go behind the tiles, so the wet zones get a backing board fixed to sound masonry. The extract duct also needs a hole cored through solid brick, so mark its route at first fix, before the walls are boarded.
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