From £17,452
Our building services company AJ Construction was established in 2008. Since then we have been helping customers in Nottinghamshire and the surroun...
From £17,364
Trusted and professional extension builder in Retford. Experienced in all extension buildering work and keeping within budget and on quote. Gilman+...
From £17,772
If you are looking for a block-paving specialist Random Stone Construction can help. We have been transforming driveways for 15 ye...

Underpinning ranges from £17,364 (Gilman+Child based in DN22) to £17,772 (Random Stone Construction based in S81), 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 Retford by posting a job with HaMuch and we will send it to extension builders in Retford.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Retford | £31 | £243 |
| Underpin A Building near Bassetlaw | £31 | £243 |
| Underpin A Building near Worksop | £33 | £265 |
| Underpin A Building near Gainsborough | £30 | £234 |
| Underpin A Building near Forest Town | £33 | £262 |
| Underpin A Building near Mansfield Woodhouse | £33 | £262 |
| Underpin A Building near Wickersley | £32 | £258 |
| Underpin A Building near Lincoln | £31 | £232 |
| Underpin A Building near Doncaster | £29 | £238 |
| Underpin A Building near Mansfield | £33 | £261 |
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 - £17,529

Two storey extension - £88,044

Build a timber frame extension - £26,029

Build a swimming pool - £81,029

Single storey extension - £55,587

Side return extension - £41,830

Install an RSJ - £2,229

Outbuilding - £10,029

Build a Mansard loft conversion - £52,029

Loft conversion - £34,025

Build a kitchen extension - £42,029

Hip to gable loft conversion - £42,029

Granny annexe - £87,029

Garden office - £10,029

Convert a Garage - £16,029

Garage - £18,529

Build a flat roof extension - £22,029

Build a dormer loft conversion - £42,029

Concrete foundations - £6,279

Convert a bungalow loft - £29,029

Convert a basement - £37,830