From £17,188
Experienced extension builder ready to quote for your work. Reco life is the best extension builder in Spratton. No obligation free quotes and many...
From £17,364
Walsh Builders Ltd is an established and experienced local extension builder in Spratton. Please contact us for a free, no obligation quote and com...
From £16,908
We have a great team behind us, we offer friendly, competitive and professional service. With years of experience among the trades, there's not muc...
From £17,484
Need to find an Extension Builder near you for all your extension buildering work?
Picking your Local Builder provides a local, trusted ext...
From £17,228
ATJ BUILDING & GROUNDWORKS is a trusted extension builder serving customers in Spratton and the surrounding area. Contact us to today to get a comp...
From £17,516
Trusted and professional extension builder in Spratton. Experienced in all extension buildering work and keeping within budget and on quote. P F HO...
From £17,116
Brickwork specialist with 30 years experience.
From repointing, small repairs up to building extensions and houses.
Stonework...
From £17,100
M Home Renovations is an established extension buildering business in Spratton. We come highly recommended and provide competitive quotes for your ...
From £17,100
New Revival - Construction Management is a trusted extension builder serving customers in Spratton and the surrounding area. Contact us to today to...
From £17,484
Spratton, NN6
Trusted and professional extension builder in Spratton. Experienced in all extension buildering work and keeping within budget and on quote. BESTBI...

Underpinning ranges from £16,908 (Artizan Roofing based in NN2) to £17,516 (P F HOLMAN BUILDER based in NN7), 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 Spratton by posting a job with HaMuch and we will send it to extension builders in Spratton.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Northampton | £35 | £239 |
| Underpin A Building near Wellingborough | £39 | £251 |
| Underpin A Building near Kettering | £34 | £237 |
| Underpin A Building near Daventry | £31 | £230 |
| Underpin A Building near Market Harborough | £31 | £217 |
| Underpin A Building near Rugby | £31 | £224 |
| Underpin A Building near Rushden | £34 | £231 |
| Underpin A Building near Corby | £30 | £214 |
| Underpin A Building near Wigston | £28 | £214 |
| Underpin A Building near Milton Keynes | £39 | £263 |
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 - £17,249

Two storey extension - £87,623

Build a timber frame extension - £25,749

Build a swimming pool - £80,749

Single storey extension - £49,976

Side return extension - £38,674

Install an RSJ - £1,949

Outbuilding - £9,749

Build a Mansard loft conversion - £51,749

Loft conversion - £31,395

Build a kitchen extension - £41,749

Hip to gable loft conversion - £41,749

Granny annexe - £86,749

Garden office - £9,749

Convert a Garage - £15,749

Garage - £18,249

Build a flat roof extension - £21,749

Build a dormer loft conversion - £41,749

Concrete foundations - £5,999

Convert a bungalow loft - £28,749

Convert a basement - £34,674