From £57,560
Relax... you have found a reliable extension builder in Purley. CBK Design & Build is a friendly and reliable company based in Purley who consider ...
From £60,120
Purley, CR8
Relax... you have found a reliable extension builder in Purley. Neats General Builders is a friendly and reliable company based in Purley who consi...
From £55,320
Need to find an Extension Builder near you for all your extension buildering work?
Harrington Builders Kenley Ltd provides a local, trusted...
From £59,960
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 £50,680
We offer single room decorations to full house refurbishment using products and materials as discussed with clients
From £63,960
Experienced extension builder ready to quote for your work. Palatium Properties Ltd is the best extension builder in Purley. No obligation free quo...
From £62,040
The Original Roofing Company are here to help customers who need an Extension Builder in Purley. We offer a competitive rate to complete all your e...
From £54,520
Purley, CR8
R D Builders is an established extension buildering business in Purley. We come highly recommended and provide competitive quotes for your work.
From £56,280
EKJ Construction are here to help customers who need an Extension Builder in Purley. We offer a competitive rate to complete all your extension bui...
From £67,800
Purley, CR8
Trusted and professional extension builder in Purley. Experienced in all extension buildering work and keeping within budget and on quote. G&R CONS...

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 - £17,691

Two storey extension - £88,287

Build a timber frame extension - £26,191

Build a swimming pool - £81,191

Single storey extension - £58,824

Side return extension - £43,651

Install an RSJ - £2,391

Outbuilding - £10,191

Build a Mansard loft conversion - £52,191

Loft conversion - £35,543

Build a kitchen extension - £42,191

Hip to gable loft conversion - £42,191

Granny annexe - £87,191

Garden office - £10,191

Convert a Garage - £16,191

Garage - £18,691

Build a flat roof extension - £22,191

Build a dormer loft conversion - £42,191

Concrete foundations - £6,441

Convert a bungalow loft - £29,191

Convert a basement - £39,651