From £17,388
Your Local builders in Peterborough
GMF Builders is owned and managed by Graham Fuller who has approximately 23 years experience in the ...
From £17,580
Trusted and professional extension builder in Huntingdonshire. Experienced in all extension buildering work and keeping within budget and on quote....
From £17,564
Trinity Green Building Contractors are here to help customers who need an Extension Builder in Huntingdonshire. We offer a competitive rate to comp...
From £17,420
Trusted and professional extension builder in Huntingdonshire. Experienced in all extension buildering work and keeping within budget and on quote....
From £17,900
Member since January 2026
Welcome to Price & Sons! We are a building company based in Peterborough. If you are interested in a quote please get in touch with us!
From £17,660
Silverwood Construction (Cambridge) Ltd are here to help customers who need an Extension Builder in Huntingdonshire. We offer a competitive rate to...
From £17,772
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,484
Hi im Shane & I am the managing director of sjs multitrade Ltd, I am a landscaper & builder of bespoke gardens and outdoor spaces created to my cus...
From £17,588
Eric Handyman- builder is an established and experienced local extension builder in Huntingdonshire. Please contact us for a free, no obligation qu...
From £17,660
DAR CONSTRUCTION are here to help customers who need an Extension Builder in Huntingdonshire. We offer a competitive rate to complete all your exte...

Underpinning ranges from £17,388 (G M F GENERAL BUILDERS based in PE6) to £17,900 (PSP Developments based in PE6), 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 Huntingdonshire by posting a job with HaMuch and we will send it to extension builders in Huntingdonshire.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Huntingdonshire | £36 | £290 |
| Underpin A Building near Huntingdon | £38 | £284 |
| Underpin A Building near St Neots | £51 | £318 |
| Underpin A Building near Peterborough | £40 | £281 |
| Underpin A Building near Rushden | £34 | £231 |
| Underpin A Building near Corby | £30 | £214 |
| Underpin A Building near Stamford | £35 | £248 |
| Underpin A Building near Kettering | £34 | £237 |
| Underpin A Building near Wellingborough | £39 | £251 |
| 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 - £17,602

Two storey extension - £88,152

Build a timber frame extension - £26,102

Build a swimming pool - £81,102

Single storey extension - £57,032

Side return extension - £42,643

Install an RSJ - £2,302

Outbuilding - £10,102

Build a Mansard loft conversion - £52,102

Loft conversion - £34,703

Build a kitchen extension - £42,102

Hip to gable loft conversion - £42,102

Granny annexe - £87,102

Garden office - £10,102

Convert a Garage - £16,102

Garage - £18,602

Build a flat roof extension - £22,102

Build a dormer loft conversion - £42,102

Concrete foundations - £6,352

Convert a bungalow loft - £29,102

Convert a basement - £38,643