From £17,908
London Roof Gardens is a trusted extension builder serving customers in Leadenhall and the surrounding area. Contact us to today to get a competiti...
From £17,972
Leadenhall East Dunbartonshire, EC3M
Need an Extension Builder in Leadenhall? GenUp Digital has been helping local clients (5 mile radius) with their extension buildering jobs for many...
From £17,788
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,596
Omniform are here to help customers who need an Extension Builder in Leadenhall. We offer a competitive rate to complete all your extension builder...
From £17,860
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,428
Shine Your Home is an established extension buildering business in Leadenhall. We come highly recommended and provide competitive quotes for your w...
From £17,660
Venta Construction is an established and experienced local extension builder in Leadenhall. Please contact us for a free, no obligation quote and c...
From £17,836
Pencil and Brick is the collective name for our architect practice and our construction company. We're based in East London.We work on a wide range...
From £17,772
Need an Extension Builder in Leadenhall? Aylaa Exclusive has been helping local clients (5 mile radius) with their extension buildering jobs for ma...

Underpinning ranges from £17,428 (Shine Your Home based in E1) to £17,972 (GenUp Digital based in EC3M), 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 Leadenhall by posting a job with HaMuch and we will send it to extension builders in Leadenhall.
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 - £17,746

Two storey extension - £88,368

Build a timber frame extension - £26,246

Build a swimming pool - £81,246

Single storey extension - £59,912

Side return extension - £44,263

Install an RSJ - £2,446

Outbuilding - £10,246

Build a Mansard loft conversion - £52,246

Loft conversion - £36,053

Build a kitchen extension - £42,246

Hip to gable loft conversion - £42,246

Granny annexe - £87,246

Garden office - £10,246

Convert a Garage - £16,246

Garage - £18,746

Build a flat roof extension - £22,246

Build a dormer loft conversion - £42,246

Concrete foundations - £6,496

Convert a bungalow loft - £29,246

Convert a basement - £40,263