From £6,410
South Croydon, CR2
BK Building Services is a trusted extension builder serving customers in CR2 and the surrounding area. Contact us to today to get a competitive quo...
From £6,298
Smiley Building Services are here to help customers who need an Extension Builder in CR2. We offer a competitive rate to complete all your extensio...
From £6,338
Sanderstead, CR2
L & S GENERAL BUILDING is an established and experienced local extension builder in CR2. Please contact us for a free, no obligation quote and comp...
From £6,698
Experienced extension builder ready to quote for your work. Palatium Properties Ltd is the best extension builder in CR2. No obligation free quotes...
From £6,034
Sanderstead, CR2
We offer single room decorations to full house refurbishment using products and materials as discussed with clients
From £6,498
We are a South London Based construction company with a passion for building. We pride ourselves in fast paced, high quality work to suit every bud...
From £6,658
Sanderstead, CR2
Need to find an Extension Builder near you for all your extension buildering work?
Apex DIY provides a local, trusted extension buildering ...
From £6,474
Our building services company GDH Building & Roofing Services have thirty five years’ experience and have been helping customers in Croydon and t...
From £6,442
Croydon, CR2
Gb construction are here to help customers who need an Extension Builder in CR2. We offer a competitive rate to complete all your extension builde...
From £6,306
Master Build Constrution London is a trusted extension builder serving customers in CR2 and the surrounding area. Contact us to today to get a comp...

Concrete foundations range from the £6,034 (PGHomecare Ltd based in CR2) to £6,698 (Palatium Properties Ltd based in CR2) in CR2.
Comparing extension builders estimates for laying concrete foundations gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Find out the exact cost of laying concrete foundations in CR2 by posting a job with HaMuch. We will send it to extension builders who can give you a detailed quote.
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 - £17,666

Two storey extension - £88,248

Build a timber frame extension - £26,166

Build a swimming pool - £81,166

Single storey extension - £58,312

Side return extension - £43,363

Install an RSJ - £2,366

Outbuilding - £10,166

Build a Mansard loft conversion - £52,166

Loft conversion - £35,303

Build a kitchen extension - £42,166

Hip to gable loft conversion - £42,166

Granny annexe - £87,166

Garden office - £10,166

Convert a Garage - £16,166

Garage - £18,666

Build a flat roof extension - £22,166

Build a dormer loft conversion - £42,166

Concrete foundations - £6,416

Convert a bungalow loft - £29,166

Convert a basement - £39,363