From £17,748
If you need to underpin a building use an Extension Builder. Work is guarenteed and the cost won't hurt the pocket.
From £18,308
A service with a difference. Priced competitively to underpin a building and more.
From £17,700
You want to underpin a building? No problem, an Extension Builder is a reliable extension builder with years of experience helping homeowners.
...From £17,828
A friendly extension builder in MK42. Happy to provide references and a free quote to underpin a building.
From £17,948
You want to underpin a building? No problem, an Extension Builder is a reliable extension builder with years of experience helping homeowners.
...From £17,804
Our building services company MH Building have a combined thirty-five years of experience and have been helping customers in Bedfordshire and the s...
From £17,380
Need to underpin a building? trade_vw is competitively priced and quick to quote.
From £17,740
For all your needs. If you need to underpin a building contact us today to get a no obligation free quote.
From £17,932
Need to underpin a building? trade_vw is competitively priced and quick to quote.
From £17,644
If you need to underpin a building use an Extension Builder. Work is guarenteed and the cost won't hurt the pocket.
From £17,348
For all your needs. If you need to underpin a building contact us today to get a no obligation free quote.
From £17,764
You want to underpin a building? No problem, an Extension Builder is a reliable extension builder with years of experience helping homeowners.
...From £18,068
We strive for quality for our clients. With over 37 years experience in the building industry we can offer a full service for our clients including...
From £17,668
You want to underpin a building? No problem, an Extension Builder is a reliable extension builder with years of experience helping homeowners.
...From £17,348
A friendly extension builder in MK42. Happy to provide references and a free quote to underpin a building.
From £18,052
Blue Conker are dedicated to creating spaces for you to enjoy living. From the planning stages through to the finishing touches, our team of profes...
From £17,692
an Extension Builder is an established company, providing a professional and tidy service.
From £17,828
Our building services company David Douglas Developments has over 30 years’ experience, and built an established reputation of providing customer...
From £17,940
To underpin a building in MK42 we are a reliable and competitive extension builder. Expert service guaranteed.
From £17,364
To underpin a building in MK42 we are a reliable and competitive extension builder. Expert service guaranteed.
From £17,860
Need to underpin a building? trade_vw is competitively priced and quick to quote.

Underpinning ranges from £17,124 (K FREEMAN BUILDERS LIMITED based in MK43) to £18,524 (J K L Building Contractors Ltd based in MK42), 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 MK42 by posting a job with HaMuch and we will send it to extension builders in MK42.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Kempston | £37 | £230 |
| Underpin A Building near Bedford | £38 | £233 |
| Underpin A Building near South Bedfordshire | £38 | £233 |
| Underpin A Building near Ampthill | £31 | £214 |
| Underpin A Building near Mid Bedfordshire | £34 | £225 |
| Underpin A Building near Biggleswade | £35 | £230 |
| Underpin A Building near St Neots | £42 | £256 |
| Underpin A Building near Rushden | £30 | £209 |
| Underpin A Building near Milton Keynes | £33 | £226 |
| Underpin A Building near Bletchley | £34 | £227 |
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 - £17,763

Two storey extension - £88,395

Build a timber frame extension - £26,263

Build a swimming pool - £81,263

Single storey extension - £60,267

Side return extension - £44,463

Install an RSJ - £2,463

Outbuilding - £10,263

Build a Mansard loft conversion - £52,263

Loft conversion - £36,219

Build a kitchen extension - £42,263

Hip to gable loft conversion - £42,263

Granny annexe - £87,263

Garden office - £10,263

Convert a Garage - £16,263

Garage - £18,763

Build a flat roof extension - £22,263

Build a dormer loft conversion - £42,263

Concrete foundations - £6,513

Convert a bungalow loft - £29,263

Convert a basement - £40,463