We send your job to ALL Stoneleigh extension builders
Available extension builders in Stoneleigh reply
Select your affordable Stoneleigh extension builder
Relax... you have found a reliable extension builder in Stoneleigh. GDW Construction is a friendly and reliable company based in Stoneleigh who con...
Need to find an Extension Builder near you for all your extension buildering work?
OAK HOUSE BESPOKE BUILDERS provides a local, trusted ext...
Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in Stoneleigh. No obligation free ...
Need an Extension Builder in Stoneleigh? PLG Building Services has been helping local clients (10 mile radius) with their extension buildering jobs...
Gani Bush
Gb construction are here to help customers who need an Extension Builder in Stoneleigh. We offer a competitive rate to complete all your extension...
BK Building Services is a trusted extension builder serving customers in Stoneleigh and the surrounding area. Contact us to today to get a competit...
L & S GENERAL BUILDING is an established and experienced local extension builder in Stoneleigh. Please contact us for a free, no obligation quote a...
From £23,200
Sebastian Banga
Member since August 2025
Banga decoration. Is Base in south London for number of year Banga decoration is a small company. Wich provide an excellent job to the custom...
Experienced extension builder ready to quote for your work. CW BUILDING SERVICES is the best extension builder in Stoneleigh. No obligation free qu...

A flat roof extension ranges from the cheapest of £22,048 (J&J Building Solutions based in SW16) to the dearest of £23,200 (Banga Decoration based in CR7), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.
Find out how much your flat roof extension will cost in Stoneleigh by posting a job with HaMuch. We'll send it to extension builders in Stoneleigh.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Ewell | £44 | £275 |
| Build A Flat Roof Extension near Epsom | £44 | £275 |
| Build A Flat Roof Extension near Sutton | £43 | £274 |
| Build A Flat Roof Extension near Tadworth | £41 | £271 |
| Build A Flat Roof Extension near Reigate & Banstead | £41 | £271 |
| Build A Flat Roof Extension near Esher | £43 | £274 |
| Build A Flat Roof Extension near Kingston Upon Thames | £43 | £271 |
| Build A Flat Roof Extension near Merton | £43 | £272 |
| Build A Flat Roof Extension near Wimbledon | £43 | £273 |
| Build A Flat Roof Extension near Richmond Upon Thames | £43 | £274 |
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building - £17,885

Two storey extension - £88,577

Build a timber frame extension - £26,385

Build a swimming pool - £81,385

Single storey extension - £62,696

Side return extension - £45,829

Install an RSJ - £2,585

Outbuilding - £10,385

Build a Mansard loft conversion - £52,385

Loft conversion - £37,358

Build a kitchen extension - £42,385

Hip to gable loft conversion - £42,385

Granny annexe - £87,385

Garden office - £10,385

Convert a Garage - £16,385

Garage - £18,885

Build a flat roof extension - £22,385

Build a dormer loft conversion - £42,385

Concrete foundations - £6,635

Convert a bungalow loft - £29,385

Convert a basement - £41,829