Dimitar Vakavliev
We are reliable tradesmen delivering quality works with attention to detail
Need the extension buildering job done quickly without breaking the bank? WT Construction Service Ltd offer fast, reliable, and affordable extensio...
New Finishes is a trusted extension builder serving customers in Southgate and the surrounding area. Contact us to today to get a competitive quote...
Relax... you have found a reliable extension builder in Southgate. Pavillion Building Services is a friendly and reliable company based in Southgat...
Rafal Szczepanski
Our homes need to be regularly maintained and from time to time they need to be rejuvenated, modernised and enhanced. When it comes to building wor...
Homeland Building Ltd is a trusted extension builder serving customers in Southgate and the surrounding area. Contact us to today to get a competit...
Wittick Building Ltd is a trusted extension builder serving customers in Southgate and the surrounding area. Contact us to today to get a competiti...
Need an Extension Builder in Southgate? Roni Lofts Conversions Ltd has been helping local clients (10 mile radius) with their extension buildering ...
Ivaylo Shkodrov
Extremely reliable service . Flexibility, correct, listening customer. Wide experience.
Need to find an Extension Builder near you for all your extension buildering work?
Raf's Building Service provides a local, trusted extensi...

Underpinning ranges from £16,820 (Onyx Iv based in N11) to £18,060 (Rafix Building based in EN4), 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 - £17,550

Two storey extension - £88,076

Build a timber frame extension - £26,050

Build a swimming pool - £81,050

Single storey extension - £56,008

Side return extension - £42,067

Install an RSJ - £2,250

Outbuilding - £10,050

Build a Mansard loft conversion - £52,050

Loft conversion - £34,223

Build a kitchen extension - £42,050

Hip to gable loft conversion - £42,050

Granny annexe - £87,050

Garden office - £10,050

Convert a Garage - £16,050

Garage - £18,550

Build a flat roof extension - £22,050

Build a dormer loft conversion - £42,050

Concrete foundations - £6,300

Convert a bungalow loft - £29,050

Convert a basement - £38,067