Builder in Kensington — All Trades & Renovation Works
House Improvement Pros is an Acton-based builder covering Kensington (W8 and SW7) and the surrounding areas. In 2026 a three-piece bathroom refit in Kensington starts from £3,500 + VAT and takes 7–10 working days; a full one or two-bed flat refurbishment starts from £18,000 + VAT and takes 6–10 weeks. Every trade is in-house, every quote is fixed after a survey, and every job carries a two-year workmanship warranty.
Kensington renovation costs in 2026
| Work | Guide price | Typical duration |
|---|---|---|
| Bathroom refit, standard 3-piece (approx. 2m x 2m) | from £3,500 | 7–10 working days |
| Kitchen fit, labour only (you supply the units) | from £3,000 | 10–14 working days |
| Kitchen, supply and fit | from £12,000 | 2–4 weeks |
| Cosmetic refresh between tenancies | £5,000–£15,000 | 2–4 weeks |
| Full refurbishment, 1–2 bed flat | from £18,000 | 6–10 weeks |
| High-spec or structural, layout changes | £60,000–£120,000+ | 10+ weeks |
All prices are subject to VAT and are guide figures. We quote a fixed price only after seeing the property.
What Kensington properties actually throw up
- Stucco townhouses — Listed or in a conservation area more often than not. Almost everything visible is controlled, and the internal detailing is expected to match a standard most builders do not work to.
- Mansion blocks — Strict freeholder rules, porters, restricted working hours, and neighbours who will notice. Programme discipline matters as much as the work.
- Period conversions — Very old services behind very expensive finishes. The cost of getting it wrong is the making good, not the pipework.
Kensington is the most tightly controlled area we work in. Listed building consent, conservation area restrictions and the borough’s controls on basements and external alterations mean the paperwork can take longer than the build. We are honest about that timeline rather than promising a start date we cannot hold.
Works we carry out in Kensington
- Full flat and house refurbishments
- Bathroom renovations
- Kitchen renovations
- Loft conversions and extensions
- Building repairs and maintenance
- Commercial-to-residential conversions for larger schemes
- All trades in-house — plumbing, electrical, plastering, tiling, carpentry, damp-proofing, decorating
How we work
- Fixed price, agreed before we start. We survey the property, price the risks we can see, and hold that figure. We do not price low and find extras later.
- One team, one contact. Every trade is ours, so there is no gap between the plumber finishing and the tiler turning up, and nobody to blame if something is wrong.
- Two-year workmanship warranty on completed works.
- CDM Principal Contractor and Principal Designer qualified — the health and safety duty-holder role most small builders cannot take on, and a requirement on larger domestic projects.
- Over 100 completed projects across West London, including an eleven-flat commercial conversion.
Frequently asked questions
How much does a builder cost in Kensington?
For defined works we quote a fixed price rather than a day rate. As a guide, a bathroom refit starts from £3,500 + VAT and a full one or two-bed flat refurbishment from £18,000 + VAT. Small repair visits are quoted individually.
Do you charge for a quote or a site visit?
No. The survey and the written fixed-price quote are free, and there is no obligation.
How long does a bathroom take in Kensington?
Seven to ten working days for a standard three-piece refit. Layout changes, wet rooms and premium tiling run to two or three weeks, because the first-fix plumbing and tanking take longer.
Do I need planning permission to renovate in Kensington?
The Royal Borough of Kensington and Chelsea covers planning and Building Control, and much of W8 and SW7 is conservation area or listed. Internal work to a listed building can itself need listed building consent — which is a different and stricter test than planning permission. We establish the status of your property before quoting.
Do you work for landlords and letting agents in Kensington?
Yes — between-tenancy refreshes, full refurbishments and planned maintenance. Fixed prices and defined completion dates, which is usually what matters most when a property is standing empty.
Which areas near Kensington do you cover?
Kensington (W8 and SW7), Fulham, Hammersmith, Chiswick, and the rest of West London.
Get a fixed price for your Kensington project
Call 07510 375 598 for a free survey and a written fixed-price quote, or send us the details and we will come back to you.
Prices and timings on this page are for Kensington, W8 and SW7, and are current as of September 2026. Written by the House Improvement Pros team — CDM Principal Contractor & Principal Designer qualified, over 100 projects completed across West London.