Tommy House
HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in Woolwich and the surrounding area. Contact us to today to get a...
Relax... you have found a reliable extension builder in Woolwich. Derryard Construction Ltd is a friendly and reliable company based in Woolwich wh...
Trusted and professional extension builder in Woolwich. Experienced in all extension buildering work and keeping within budget and on quote. AM Bui...
Philip Boateg
Woolwich London, SE18
Need to find an Extension Builder near you for all your extension buildering work?
PFM General Building Services Ltd provides a local, trus...
Trusted and professional extension builder in Woolwich. Experienced in all extension buildering work and keeping within budget and on quote. Charli...
Experienced extension builder ready to quote for your work. Liviu Toma is the best extension builder in Woolwich. No obligation free quotes and man...
Lover Build is an established and experienced local extension builder in Woolwich. Please contact us for a free, no obligation quote and competitiv...
Jay Christenson
Experienced extension builder ready to quote for your work. Jmc buildets is the best extension builder in Woolwich. No obligation free quotes and m...
JASPG excel in finding investment opportunities, working together with clients and partners to achieve optimal results. We project manage from star...
Need to find an Extension Builder near you for all your extension buildering work?
AMJAC CONSTRUCTION LTD provides a local, trusted extensi...

Underpinning ranges from £17,116 (Jmc buildets based in SE9) to £18,116 (HOUSE BUILDING SERVICES LIMITED based in DA16), 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 Woolwich by posting a job with HaMuch and we will send it to extension builders in Woolwich.
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 - £17,687

Two storey extension - £88,281

Build a timber frame extension - £26,187

Build a swimming pool - £81,187

Single storey extension - £58,744

Side return extension - £43,606

Install an RSJ - £2,387

Outbuilding - £10,187

Build a Mansard loft conversion - £52,187

Loft conversion - £35,505

Build a kitchen extension - £42,187

Hip to gable loft conversion - £42,187

Granny annexe - £87,187

Garden office - £10,187

Convert a Garage - £16,187

Garage - £18,687

Build a flat roof extension - £22,187

Build a dormer loft conversion - £42,187

Concrete foundations - £6,437

Convert a bungalow loft - £29,187

Convert a basement - £39,606