From £17,852
HOW WE WORK?We are here to design the best places!Our experience includes projects all over the world, from small scaled projects to large resident...
From £17,540
Southgate, N14
I have been in the construction industry since 2004, originally training as a carpenter. In 2013 I branched out with my own building firm, Artifex,...
From £17,484
Experienced extension builder ready to quote for your work. TIPS CONSTRUCTION is the best extension builder in Southgate. No obligation free quotes...
From £17,932
Southgate Greater London, N14
AGK Building Services Ltd is a small family-run business with more than 20 years' experience in the building services industry. We have a team of d...
From £17,572
Relax... you have found a reliable extension builder in Southgate. Des Contract Ltd is a friendly and reliable company based in Southgate who consi...
From £17,524
Southgate London, N14
Grand Lion Group is a construction company based in London, offering a wide range of build and refurbishment services. For the last 12 years, our c...
From £17,972
Relax... you have found a reliable extension builder in Southgate. Sunshine Investment Properties is a friendly and reliable company based in South...
From £17,540
Southgate London, N14
Relax... you have found a reliable extension builder in Southgate. A-Team Building Construction Ltd is a friendly and reliable company based in Sou...
From £18,892
Trusted and professional extension builder in Southgate. Experienced in all extension buildering work and keeping within budget and on quote. Artan...

Underpinning ranges from £17,460 (Renova PMC based in n11) to £18,892 (Artan Property Services Ltd based in N14), 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 Southgate by posting a job with HaMuch and we will send it to extension builders in Southgate.
"Underpinning" - EN2, job posted 01/01/70
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 - £17,777

Two storey extension - £88,415

Build a timber frame extension - £26,277

Build a swimming pool - £81,277

Single storey extension - £60,536

Side return extension - £44,614

Install an RSJ - £2,477

Outbuilding - £10,277

Build a Mansard loft conversion - £52,277

Loft conversion - £36,345

Build a kitchen extension - £42,277

Hip to gable loft conversion - £42,277

Granny annexe - £87,277

Garden office - £10,277

Convert a Garage - £16,277

Garage - £18,777

Build a flat roof extension - £22,277

Build a dormer loft conversion - £42,277

Concrete foundations - £6,527

Convert a bungalow loft - £29,277

Convert a basement - £40,614