Albdeco Builders & Decorators Ltd is a trusted extension builder serving customers in KT6 and the surrounding area. Contact us to today to get a co...
Need an Extension Builder in KT6? FLUID CONSTRUCTION has been helping local clients (10 mile radius) with their extension buildering jobs for many ...
Need to find an Extension Builder near you for all your extension buildering work?
Leith All Building & Decorating provides a local, truste...
Paul Meacher Builders is an established and experienced local extension builder in KT6. Please contact us for a free, no obligation quote and compe...
P L CONTRACTORS DESIGN & BUILD is a trusted extension builder serving customers in KT6 and the surrounding area. Contact us to today to get a compe...
Trusted and professional extension builder in KT6. Experienced in all extension buildering work and keeping within budget and on quote. Eminent Pro...
MZ Building Services are here to help customers who need an Extension Builder in KT6. We offer a competitive rate to complete all your extension bu...
We are a London based Design & Build construction company offering the following :Property Extensions and Major RenovationsBespoke Kitchens - Desig...
Experienced extension builder ready to quote for your work. Aranstruct is the best extension builder in KT6. No obligation free quotes and many hap...
Mick Winn
All of our work is guaranteed and covered by public liability and third party insurance for £5 million, giving our customers absolute peace of min...

In KT6, prices for dormer loft conversions range from £42,000 (Ascent Builders based in KT19) to £42,456 (Albdeco Builders & Decorators Ltd based in KT1), but how much your conversion costs will vary depending on the size of your property, how easy access to your roof is and what you want to use the space for.
The best way to get an accurate price is to compare quotes from extension builders in KT6. Post your job on HaMuch now and we'll put you in touch with available extension builders.
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 - £17,739

Two storey extension - £88,359

Build a timber frame extension - £26,239

Build a swimming pool - £81,239

Single storey extension - £59,784

Side return extension - £44,191

Install an RSJ - £2,439

Outbuilding - £10,239

Build a Mansard loft conversion - £52,239

Loft conversion - £35,993

Build a kitchen extension - £42,239

Hip to gable loft conversion - £42,239

Granny annexe - £87,239

Garden office - £10,239

Convert a Garage - £16,239

Garage - £18,739

Build a flat roof extension - £22,239

Build a dormer loft conversion - £42,239

Concrete foundations - £6,489

Convert a bungalow loft - £29,239

Convert a basement - £40,191