Experienced extension builder ready to quote for your work. The Perfectionist is the best extension builder in New Cross. No obligation free quotes...
Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in New Cross. No obligation fre...
Radoslaw Rzanek
Trusted and professional extension builder in New Cross. Experienced in all extension buildering work and keeping within budget and on quote. RR'S ...
Trusted and professional extension builder in New Cross. Experienced in all extension buildering work and keeping within budget and on quote. Vidan...
DUWIX BUILDING MAINTENANCE are here to help customers who need an Extension Builder in New Cross. We offer a competitive rate to complete all your ...
Peter Cesma
Experienced builder in all aspects of building works. All work guaranteed. Quality finish, promt ,honest and reliable services. Public liabil...
At Home Tranformers Ltd we have been fitting bespoke bathrooms for over 10 years. We pride ourselves on being the go-to bathroom fitters for discer...
Need to find an Extension Builder near you for all your extension buildering work?
Ask Building provides a local, trusted extension builder...
Daniel Dixon
Need to find an Extension Builder near you for all your extension buildering work?
Renobuild Group provides a local, trusted extension buil...
AAA Design Decorators are here to help customers who need an Extension Builder in New Cross. We offer a competitive rate to complete all your exten...

Comparing extension builders estimates for a Convert a basement gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost to convert a basement in New Cross by posting a job with HaMuch and we will send it to extension builders in New Cross.
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 - £17,750

Two storey extension - £88,376

Build a timber frame extension - £26,250

Build a swimming pool - £81,250

Single storey extension - £60,008

Side return extension - £44,317

Install an RSJ - £2,450

Outbuilding - £10,250

Build a Mansard loft conversion - £52,250

Loft conversion - £36,098

Build a kitchen extension - £42,250

Hip to gable loft conversion - £42,250

Granny annexe - £87,250

Garden office - £10,250

Convert a Garage - £16,250

Garage - £18,750

Build a flat roof extension - £22,250

Build a dormer loft conversion - £42,250

Concrete foundations - £6,500

Convert a bungalow loft - £29,250

Convert a basement - £40,317