Bathroom Renovation High Wycombe
Bathroom and wet-room refurbishment in High Wycombe, tanked, plumbed and tiled by one team.
- Rated 4.9 from 31 reviews on MyBuilder
- Guide from £6,000 (London-derived)
- Free design visit, itemised quote
A new bathroom is a drainage job with tiling over it. Waste runs, ventilation, waterproofing and electrical zones all have to be right before anything is tiled, because opening it back up afterwards means starting the finish again. We run the whole job under one contract and make the building control application where the work needs one.
For High Wycombe, on London-derived ranges a full bathroom refit typically costs £6,000 to £20,000 or more; Buckinghamshire work generally runs below that. GS Renovation Ltd, a building contractor based in Potters Bar, does the work in High Wycombe: we carry the tanking, plumbing and tiling as one contract, with the electrics certified by a registered electrician.
Price guide
| Work | Indicative range |
|---|---|
| Bathroom renovation, full refit | £6,000 to £20,000+ |
Indicative London ranges (MyBuilder and Checkatrade, 2026), not a quotation. Buckinghamshire work generally runs below the London figures; your price follows a site visit. Prices checked September 2026. Full breakdown: Bathroom Renovation Cost.
Quick estimate for High Wycombe
High Wycombe range: choose above
How the job runs
- Free design visit at your High Wycombe 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.

A new bathroom, shower or toilet can be applied for by building notice
Buckinghamshire Council lists a new bathroom, shower or toilet, along with new drainage or connection to a sewer, as work that can be applied for by building notice rather than by full plans.
That matters where a bathroom moves rather than being replaced in place. A new waste run, a soil connection, or a WC in a room that never had one, all bring the application into play. We make the notice, hold the drainage open for the inspection, and tile only once it has been seen.
Housing in High Wycombe
Count the homes in High Wycombe and you get about 32,710: 73% built since 1945, 17% between the wars and 10% before 1919, with flats at 35% and houses at 65%. 32% of homes here are semi-detached; a semi in High Wycombe can vent its bathroom through the flank.
Get at least three written quotations and check each one covers everything
Buckinghamshire Council advises homeowners to obtain at least 3 written quotations for building work, and to check that each one covers all the work. The second half of that advice is where bathroom quotations separate from one another.
Waterproofing behind the tiling, the extract fan and its ducting, making good the ceiling below where a waste run moves, and taking the old suite away are all straightforward to leave out of a headline figure. Our quotations set out what is included and what is not, so a comparison is like for like. They are free and carry no obligation.
- Soil pipe and waste re-routing within the floor build-up
- Walk-in showers and wet-room installation
- Tanking membranes and waterproof boards behind tiles
VOA Council Tax stock of properties, March 2025, for all 9 statistical areas in High Wycombe. Counts rounded by the VOA.
Why Choose GS Renovation in High Wycombe
A bathroom is a small room with a long list of trades in it, and the order they work in decides whether the finish lasts. We run the strip out, the drainage, the first fix, the waterproofing, the tiling and the second fix as one contract, so nothing is tiled over before it has been checked. Where the work needs a building control application, we make it to Buckinghamshire Council and hold the pipework open for the inspection. That is one point of contact from the strip out to the final seal, and one firm answerable for it. GS Renovation Ltd is fully insured, registered in England, company number 14611254, and rated 4.9 from 31 reviews on MyBuilder.
George is a very hard working builder, and has done a fantastic job on replacing my Bathroom. His attention to detail was great and I wouldn't…
Saiid did a complete refurbishment of our small bathroom. This involved ripping out the existing bath/shower, basin, toilet, pipework, and tiles and…
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 High Wycombe
Can I get a fixed price for bathroom renovation at an HP11 address?
Fixed pricing is the default for bathroom renovation in High Wycombe, not the exception. What prevents it is real uncertainty about the structure at the HP11 address, and then GS Renovation prices the investigation first and the job afterwards, within £6,000 to £20,000 or more (London-derived). Once it is done, the build follows its set sequence: any underfloor heating is laid and tested before the floor is tiled.
At what point does the inspector need to see the pipework before tiling starts?
Before any of it is covered, and the visit is booked the day before it is needed. Buckinghamshire Council carries out building control site inspections between 10am and 3pm, Monday to Friday, excluding public holidays. It names drainage among the intermediate stages its inspector needs to see. We hold the first fix open, book the visit into that window, and waterproof once it has been seen.
The boards went back on before the inspector came. What happens now?
They come off again for the visit. Buckinghamshire Council may charge an additional building control fee where it has to visit more than once to check the same thing, so a second trip is not a free one. Work that has been covered cannot be signed off through a boarded wall. We sequence the trades so the drainage is seen once and then closed for good.
Which application does an ensuite in a loft conversion need?
Full plans, because of the loft conversion rather than the bathroom. Buckinghamshire Council requires a full plans application for loft conversions, and for extensions or alterations to any building other than small single-storey domestic extensions. A new bathroom, shower or toilet on its own can be applied for by building notice. Where the two are one project, the loft conversion sets the route for both.
Can the new waste run be notched through the floor joists?
Only where the engineer we appoint confirms the joists can take it. Cutting a joist changes how the floor carries load, and Buckinghamshire Council requires a full plans application, with structural or architectural drawings and calculations, for extensive internal structural alterations. Where a waste run cannot be accommodated within the existing structure, the alternative is a boxed route or a change of layout. We survey the floor first.
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Bathroom Renovation Near High Wycombe
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