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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 ...
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...
Experienced extension builder ready to quote for your work. CW BUILDING SERVICES is the best extension builder in Stoneleigh. No obligation free qu...
From £53,200
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...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Trusted and professional extension builder in Stoneleigh. Experienced in all extension buildering work and keeping within budget and on quote. TFC ...
Relax... you have found a reliable extension builder in Stoneleigh. D & R Roofing & Loft Conversions, Building & Design is a friendly and reliable ...

Mansard loft conversions range from the cheapest installation of £52,048 (J&J Building Solutions based in SW16) to the dearest of around £53,200 (Banga Decoration based in CR7).
While these estimates give you a good idea how much you'll pay for a mansard loft conversion, the only way to get an accurate price is to get real quotes from real builders.
Get quotes to install a mansard loft conversion in Stoneleigh by posting a job with HaMuch and we'll send it to extension builders in Stoneleigh.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Mansard Loft Conversion near Ewell | £44 | £275 |
| Build A Mansard Loft Conversion near Epsom | £44 | £275 |
| Build A Mansard Loft Conversion near Sutton | £43 | £274 |
| Build A Mansard Loft Conversion near Tadworth | £41 | £271 |
| Build A Mansard Loft Conversion near Reigate & Banstead | £41 | £271 |
| Build A Mansard Loft Conversion near Esher | £43 | £274 |
| Build A Mansard Loft Conversion near Kingston Upon Thames | £43 | £271 |
| Build A Mansard Loft Conversion near Merton | £43 | £272 |
| Build A Mansard Loft Conversion near Wimbledon | £43 | £273 |
| Build A Mansard Loft Conversion 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 - £17,907

Two storey extension - £88,611

Build a timber frame extension - £26,407

Build a swimming pool - £81,407

Single storey extension - £63,144

Side return extension - £46,081

Install an RSJ - £2,607

Outbuilding - £10,407

Build a Mansard loft conversion - £52,407

Loft conversion - £37,568

Build a kitchen extension - £42,407

Hip to gable loft conversion - £42,407

Granny annexe - £87,407

Garden office - £10,407

Convert a Garage - £16,407

Garage - £18,907

Build a flat roof extension - £22,407

Build a dormer loft conversion - £42,407

Concrete foundations - £6,657

Convert a bungalow loft - £29,407

Convert a basement - £42,081