From £17,212
Trusted and professional extension builder in LA22. Experienced in all extension buildering work and keeping within budget and on quote. J R S BUIL...
From £17,076
Experienced extension builder ready to quote for your work. SIMPSON CONSTRUCTION is the best extension builder in LA22. No obligation free quotes a...
From £17,332
Relax... you have found a reliable extension builder in LA22. STEPHEN FELLER (BUILDER) is a friendly and reliable company based in LA22 who conside...
From £17,884
Use our depth of knowledge in design, build, renovation and property development to realise your true one-off home.Our track record in residential ...
From £17,388
Need to find an Extension Builder near you for all your extension buildering work?
Absolute Build provides a local, trusted extension build...
From £17,356
Relax... you have found a reliable extension builder in LA22. CHRIS ELLWOOD BUILDING CONTR is a friendly and reliable company based in LA22 who con...
From £17,404
Relax... you have found a reliable extension builder in LA22. Wolfe Design & Build is a friendly and reliable company based in LA22 who consider no...
From £17,260
Experienced extension builder ready to quote for your work. Helmside Building Services is the best extension builder in LA22. No obligation free qu...
From £16,892
Ian Groves is an established extension buildering business in LA22. We come highly recommended and provide competitive quotes for your work.
From £17,020
Relax... you have found a reliable extension builder in LA22. M & K BUILDERS KESWICK LIMITED is a friendly and reliable company based in LA22 who c...

Underpinning ranges from £16,892 (Ian Groves based in CA12) to £17,884 (ROJ.house based in LA9), 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 LA22 by posting a job with HaMuch and we will send it to extension builders in LA22.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Kendal | £28 | £236 |
| Underpin A Building near Barrow-in-Furness | £25 | £204 |
| Underpin A Building near Morecambe | £25 | £212 |
| Underpin A Building near Whitehaven | £22 | £221 |
| Underpin A Building near Lancaster | £25 | £211 |
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 - £17,282

Two storey extension - £87,674

Build a timber frame extension - £25,782

Build a swimming pool - £80,782

Single storey extension - £50,648

Side return extension - £39,052

Install an RSJ - £1,982

Outbuilding - £9,782

Build a Mansard loft conversion - £51,782

Loft conversion - £31,710

Build a kitchen extension - £41,782

Hip to gable loft conversion - £41,782

Granny annexe - £86,782

Garden office - £9,782

Convert a Garage - £15,782

Garage - £18,282

Build a flat roof extension - £21,782

Build a dormer loft conversion - £41,782

Concrete foundations - £6,032

Convert a bungalow loft - £28,782

Convert a basement - £35,052