We send your job to ALL DA16 extension builders
Available extension builders in DA16 reply
Select your affordable DA16 extension builder
R Tredget & Son are here to help customers who need an Extension Builder in DA16. We offer a competitive rate to complete all your extension builde...
Tommy House
HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in DA16 and the surrounding area. Contact us to today to get a com...
Philip Boateg
Need to find an Extension Builder near you for all your extension buildering work?
PFM General Building Services Ltd provides a local, trus...
Lover Build is an established and experienced local extension builder in DA16. Please contact us for a free, no obligation quote and competitive ra...
Pedro
Need an Extension Builder in DA16? Danni Building Services Ltd has been helping local clients (10 mile radius) with their extension buildering jobs...
Pro-Tec Roofing & Building Services Ltd is an established and experienced local extension builder in DA16. Please contact us for a free, no obligat...
Gary Woolcombe
I am an experienced builder, I jave been in the building game since I left college after doing a 2 year bricklaying apprenticeship.
I ha...
Darius Kudzevicius
Trusted and professional extension builder in DA16. Experienced in all extension buildering work and keeping within budget and on quote. Self emplo...
From £17,812
Need to find an Extension Builder near you for all your extension buildering work?
Liam Kinsella Ltd provides a local, trusted extension bu...
From £17,516
Roger Matharoo
We are family run buisness with great pedigree of enginners.
We have over 40 years knowledge in construction building and are very compe...

Underpinning ranges from £17,500 (Self employer based in DA15) 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 DA16 by posting a job with HaMuch and we will send it to extension builders in DA16.
"Underpinning" - BEXLEY, job posted 03/10/25
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 - £17,710

Two storey extension - £88,314

Build a timber frame extension - £26,210

Build a swimming pool - £81,210

Single storey extension - £59,192

Side return extension - £43,858

Install an RSJ - £2,410

Outbuilding - £10,210

Build a Mansard loft conversion - £52,210

Loft conversion - £35,715

Build a kitchen extension - £42,210

Hip to gable loft conversion - £42,210

Granny annexe - £87,210

Garden office - £10,210

Convert a Garage - £16,210

Garage - £18,710

Build a flat roof extension - £22,210

Build a dormer loft conversion - £42,210

Concrete foundations - £6,460

Convert a bungalow loft - £29,210

Convert a basement - £39,858