From £17,836
DP BUILDERS UK LTD is a trusted extension builder serving customers in North Cheam and the surrounding area. Contact us to today to get a competiti...
From £17,860
Relax... you have found a reliable extension builder in North Cheam. KAS CONSTRUCTION (SW) LLP is a friendly and reliable company based in North Ch...
From £17,780
Experienced extension builder ready to quote for your work. Charles Byron Ltd is the best extension builder in North Cheam. No obligation free quot...
From £17,884
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,476
Trusted and professional extension builder in North Cheam. Experienced in all extension buildering work and keeping within budget and on quote. Lee...
From £17,956
Our building services company Cavendish Building and Construction Ltd have twenty-five years experience and have been helping customers in Cheam an...
From £17,588
Relax... you have found a reliable extension builder in North Cheam. GDW Construction is a friendly and reliable company based in North Cheam who c...
From £17,580
Need an Extension Builder in North Cheam? FALCON BUILDERS has been helping local clients (10 mile radius) with their extension buildering jobs for ...
From £17,596
KADEK BUILDING SERVICES is a trusted extension builder serving customers in North Cheam and the surrounding area. Contact us to today to get a comp...
From £17,580
Relax... you have found a reliable extension builder in North Cheam. CLH BUILDING SERVICES is a friendly and reliable company based in North Cheam ...

Underpinning ranges from £17,476 (Lee Builders & Decorators based in SM1) to £17,956 (Cavendish Building and Construction Ltd based in SM3), but the final cost will depend on the method of underpinning used, how much of your foundations need underpinning and where you live.
Comparing extension builders estimates for underpinning gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
Get quotes to underpin your home in North Cheam by posting a job with HaMuch and we will send it to extension builders in North Cheam.
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 - £17,714

Two storey extension - £88,320

Build a timber frame extension - £26,214

Build a swimming pool - £81,214

Single storey extension - £59,272

Side return extension - £43,903

Install an RSJ - £2,414

Outbuilding - £10,214

Build a Mansard loft conversion - £52,214

Loft conversion - £35,753

Build a kitchen extension - £42,214

Hip to gable loft conversion - £42,214

Granny annexe - £87,214

Garden office - £10,214

Convert a Garage - £16,214

Garage - £18,714

Build a flat roof extension - £22,214

Build a dormer loft conversion - £42,214

Concrete foundations - £6,464

Convert a bungalow loft - £29,214

Convert a basement - £39,903