From £17,580
Richmond Services is an established and experienced local extension builder in Brackley. Please contact us for a free, no obligation quote and comp...
From £17,380
Brackley, NN13
Caliber Construction Ltd is a trusted extension builder serving customers in Brackley and the surrounding area. Contact us to today to get a compet...
From £17,668
Brackley, NN13
Aspis Construction Ltd has been helping customers in Northamptonshire and the surrounding area for a number of years by providing professional, tru...
From £17,268
UJ Developments is an established extension buildering business in Brackley. We come highly recommended and provide competitive quotes for your wor...
From £17,316
Trusted and professional extension builder in Brackley. Experienced in all extension buildering work and keeping within budget and on quote. P GEOR...
From £17,284
ADVANCED BUILDING CONCEPTS is an established and experienced local extension builder in Brackley. Please contact us for a free, no obligation quote...
From £17,532
Need an Extension Builder in Brackley? A C SPENCER BUILDERS has been helping local clients (20 mile radius) with their extension buildering jobs fo...
From £17,572
We are Cognitive Construction, a forward-thinking design & build company.Our houses are our castles and we take great pride in transforming homes a...
From £17,652
Haras Building Contractors Ltd is a family run business with over 20 years experience within the building trade. We firmly believe in and work from...
From £17,084
SJ Groundworks & Building Ltd is a trusted extension builder serving customers in Brackley and the surrounding area. Contact us to today to get a c...

Underpinning ranges from £17,084 (SJ Groundworks & Building Ltd based in OX26) to £17,668 (Aspis Construction Ltd based in NN13), 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 Brackley by posting a job with HaMuch and we will send it to extension builders in Brackley.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Banbury | £33 | £239 |
| Underpin A Building near Bicester | £35 | £249 |
| Underpin A Building near Cherwell | £35 | £249 |
| Underpin A Building near Aylesbury Vale | £36 | £246 |
| Underpin A Building near Daventry | £31 | £230 |
| Underpin A Building near Milton Keynes | £39 | £263 |
| Underpin A Building near Northampton | £35 | £239 |
| Underpin A Building near Bletchley | £39 | £265 |
| Underpin A Building near Oxford | £37 | £265 |
| Underpin A Building near Aylesbury | £42 | £270 |
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 - £17,434

Two storey extension - £87,900

Build a timber frame extension - £25,934

Build a swimming pool - £80,934

Single storey extension - £53,672

Side return extension - £40,753

Install an RSJ - £2,134

Outbuilding - £9,934

Build a Mansard loft conversion - £51,934

Loft conversion - £33,128

Build a kitchen extension - £41,934

Hip to gable loft conversion - £41,934

Granny annexe - £86,934

Garden office - £9,934

Convert a Garage - £15,934

Garage - £18,434

Build a flat roof extension - £21,934

Build a dormer loft conversion - £41,934

Concrete foundations - £6,184

Convert a bungalow loft - £28,934

Convert a basement - £36,753