From £17,948
JP Building Limited are here to help customers who need an Extension Builder in St Neots. We offer a competitive rate to complete all your extensio...
From £17,644
A.S. OHM Electrics Ltd is a trusted extension builder serving customers in St Neots and the surrounding area. Contact us to today to get a competit...
From £17,756
ELITE BUILDING SERVICES LTD is an established extension buildering business in St Neots. We come highly recommended and provide competitive quotes ...
From £17,764
Relax... you have found a reliable extension builder in St Neots. Applewood Design and Build Ltd is a friendly and reliable company based in St Neo...
From £17,668
Relax... you have found a reliable extension builder in St Neots. Imogen Jack is a friendly and reliable company based in St Neots who consider no ...
From £17,636
Trusted and professional extension builder in St Neots. Experienced in all extension buildering work and keeping within budget and on quote. J. WAT...

Underpinning ranges from £17,636 (J. WATSON BUILDERS based in SG19) to £17,948 (JP Building Limited based in PE19), 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 St Neots by posting a job with HaMuch and we will send it to extension builders in St Neots.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near St Neots | £51 | £318 |
| Underpin A Building near Huntingdon | £38 | £284 |
| Underpin A Building near Biggleswade | £41 | £268 |
| Underpin A Building near Huntingdonshire | £36 | £290 |
| Underpin A Building near Bedford | £45 | £278 |
| Underpin A Building near South Bedfordshire | £45 | £278 |
| Underpin A Building near Kempston | £44 | £273 |
| Underpin A Building near South Cambridgeshire | £43 | £305 |
| Underpin A Building near Rushden | £34 | £231 |
| Underpin A Building near Cambridge | £38 | £271 |
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 - £17,736

Two storey extension - £88,354

Build a timber frame extension - £26,236

Build a swimming pool - £81,236

Single storey extension - £59,720

Side return extension - £44,155

Install an RSJ - £2,436

Outbuilding - £10,236

Build a Mansard loft conversion - £52,236

Loft conversion - £35,963

Build a kitchen extension - £42,236

Hip to gable loft conversion - £42,236

Granny annexe - £87,236

Garden office - £10,236

Convert a Garage - £16,236

Garage - £18,736

Build a flat roof extension - £22,236

Build a dormer loft conversion - £42,236

Concrete foundations - £6,486

Convert a bungalow loft - £29,236

Convert a basement - £40,155