Bathroom Renovation Hanwell
Bathroom and wet-room refurbishment in Hanwell, 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 throughout Hanwell, working within the tight, awkward spaces the bay-fronted Victorian and Edwardian terraces here tend to offer. We deliver fully waterproofed bathrooms, en-suites and wet rooms, handling the drainage, ventilation, tiling and heating as one properly sequenced job.
In Hanwell, 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 Hanwell: 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 Hanwell
Hanwell range: choose above
How the job runs
- Free design visit at your Hanwell 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.
Waterproofing and wet rooms in Hanwell
A bathroom that lasts starts with what you never see. Before any tile goes down we tank the walls and floor of the wet areas, bonding a waterproof membrane so moisture cannot reach the timber floors and lath-and-plaster walls common in Hanwell's period terraces. This matters most in a walk-in shower or a full wet room, where water is loose across the whole space rather than contained in a tray.
Getting the falls, the drainage and the ventilation right is the rest of the job. We set floors to drain correctly, run new waste pipework where the layout changes, and fit extraction that clears steam so damp does not build up in an old house. Add well-planned tiling and the room stays sound and dry for the long term rather than failing quietly behind the surface.
Housing in Hanwell
Hanwell has around 10,370 homes on the Council Tax list: 30% post-war, 34% interwar and 36% predate 1919, with 42% flats and 58% houses. A terrace bathroom in Hanwell vents front, back or up, never into a party wall, and 42% of homes here are terraced.
New bathrooms in Hanwell: extra rooms and flats built since 2000
Ealing lists the formation of each new WC, shower room or bathroom as a separate building control item. A Hanwell refit in the existing bathroom is not that, but a second shower room, an en-suite or a ground floor cloakroom is each a new room. Every one needs its own extract, a waste route with enough fall to the stack, and a check that the floor will take the weight of the fittings. Plan them all together and submit them together, so the ventilation and drainage are designed once for the house rather than piecemeal.
Newer flats bring a different constraint. 11% of Hanwell homes were built in 2000 or later, and many flats of that age have concrete floors. A walk-in shower cannot be recessed into a concrete slab the way it can between timber joists, so a level threshold usually needs a low profile tray on a raised floor across the whole room, or a pumped waste. Cutting into the slab is a structural change that the freeholder and the engineer would both need to approve. Decide the approach before the tiles and the tray are chosen.
Space-saving layouts for W7 period homes
Bathrooms in Hanwell terraces are often carved out of a small rear room or the top of the closet wing, so every centimetre counts. We plan layouts that make the most of an awkward footprint, using wall-hung basins and toilets, walk-in showers and concealed cisterns to free up floor and give even a compact room an open, uncluttered feel.
Where families need a second bathroom we create en-suites off main bedrooms, threading new drainage and ventilation through the existing structure. Underfloor heating warms the floor without taking wall space for a radiator, and considered tiling and lighting lift the whole room. The result suits how these W7 homes are actually lived in, practical, comfortable and built to hold up.
- Downstairs cloakroom and WC installation
- Ventilation and extraction ducted to outside
- Floor strengthening before large-format tiles or stone
VOA Council Tax stock of properties, March 2025, for Hanwell, Elthorne Park and Cuckoo Park. Counts rounded by the VOA.
Why Choose GS Renovation in Hanwell
Hanwell homeowners choose GS Renovation because we get the hidden work right, the tanking, the falls, the drainage and the ventilation, before we make a period bathroom look good. We are used to squeezing sensible layouts from the tight rear spaces of W7 terraces, and we finish to a high standard. Our founder's 30+ years on the tools back the work.
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…
The kitchen has been fitted to the high standard. Saaid was polite, professional, tidy, he pays attention to a little details that make huge…
FAQ
Frequently Asked Questions about Bathroom Renovation Hanwell
What does the bathroom renovation quotation for a Hanwell home cover?
Labour, materials, approvals, reinstatement and the programme are all on the bathroom renovation quotation for a W7 home in Hanwell, inside £6,000 to £20,000 or more (indicative). GS Renovation writes it so each element can be checked against another builder's round number. The scope reflects the property, because soil stack distance decides where a Hanwell WC can go. Email info@gsrenovationltd.co.uk to see a sample layout.
Can you fit an en-suite into my Hanwell terrace bedroom?
Usually yes. In Hanwell terraces we create en-suites by borrowing space from a main bedroom or a landing and threading new drainage and ventilation through the existing structure. We tank the wet areas, set the falls correctly and fit space-saving wall-hung fittings. No planning permission is needed for internal work, though notifiable electrics are certified by a registered electrician under Part P. 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 Ealing Council, and doing it without consent is a criminal offence.
Can the toilet move to the other side of my Hanwell bathroom?
Only if the soil pipe can reach the stack with the right fall. A toilet needs a large waste pipe, and it can only run a short distance before it would need to drop too low. In a rear closet wing bathroom, the stack is often on the outside wall, so moving the toilet away from it is the hardest change. Macerators are a last resort.
What stops my Hanwell bathroom leaking into the flat below?
Proper tanking under the tiles, well-sealed wastes and a floor that does not flex. Many Hanwell flats sit above another home, so a small leak can cause serious damage. We fit a waterproof membrane over the whole floor and up the walls in wet areas, then test the waste joints before tiling. The lease may require freeholder consent too.
Where can sockets and lights go in a Hanwell bathroom?
Only where the zones allow. The space around the bath and shower is split into zones, and the closer a fitting sits to the water, the higher its protection rating has to be. A normal socket cannot go in the room at all; a shaver point can. New circuits, and changes to circuits in the zones around the bath or shower, are notifiable under Part P, so a registered electrician fits it and issues the certificate.
How long will my Hanwell bathroom renovation take?
Usually 10 to 15 working days. In a period house, old lath and plaster walls often need stripping and replacing with cement board before tiling, which is built into that time. The shower area is tanked and left to cure before tiles go on. If it is your only bathroom, we plan to keep the toilet working as long as possible.
Where can a ground floor cloakroom go in a Hanwell terrace?
Near the existing drain is the practical answer. 42% of Hanwell homes are terraced, and in a terrace the soil drain usually runs at the back, so the rear addition or the space beside it is the easiest place for a new WC. Under the stairs works where a soil pipe can reach the drain with enough fall. Ealing treats a new WC as its own building control item, so it is included on the application.
Will the joists in a pre-1919 Hanwell house carry a new cast iron bath?
Not without checking. 36% of Hanwell homes were built before 1919, and a century of plumbing changes can leave joists notched at the top edge exactly where a heavy bath would sit. A full cast iron or stone bath is a concentrated load. The boards are lifted, the joists under the bath position checked, and any that have been cut are strengthened or doubled before the new floor goes down.
Why keep the completion certificate for a new Hanwell shower room?
It is the proof that the new room was built to the regulations. Ealing issues a completion certificate upon satisfactory completion on site and calls it an important document to keep in a safe place. A shower room added to a Hanwell flat or house is exactly what a buyer's solicitor looks for in the paperwork. Store the certificate with the electrical certificate for the shower circuit and any waterproofing warranty, so a sale is not delayed by a retrospective inspection.
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