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Karl Builder
Hi we are a building company that have been working in the swindon area for many years we also work as far as bristol We do loft conversion. ...
Ash Brice
APB provides a range of building services, including carpentry, plastering and decorating but specializing in stone, brick and tile. If you ne...
From £18,020
Craig Gray
Gray's Facilities and Maintenance Services Ltd is a trusted extension builder serving customers in Alresford and the surrounding area. Contact us t...
From £17,628
J White Developments is an established extension buildering business in Alresford. We come highly recommended and provide competitive quotes for yo...

Underpinning ranges from £17,628 (J White Developments based in SO23) to £18,300 (Boss based in SO23), 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 Alresford by posting a job with HaMuch and we will send it to extension builders in Alresford.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Winchester | £39 | £283 |
| Underpin A Building near East Hampshire | £38 | £258 |
| Underpin A Building near Chandler's Ford | £34 | £245 |
| Underpin A Building near Eastleigh | £34 | £244 |
| Underpin A Building near Basingstoke | £39 | £274 |
| Underpin A Building near Horndean | £36 | £254 |
| Underpin A Building near Hedge End | £34 | £244 |
| Underpin A Building near Waterlooville | £36 | £250 |
| Underpin A Building near Basingstoke & Deane | £39 | £273 |
| Underpin A Building near Fareham | £35 | £250 |
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 - £17,932

Two storey extension - £88,648

Build a timber frame extension - £26,432

Build a swimming pool - £81,432

Single storey extension - £63,640

Side return extension - £46,360

Install an RSJ - £2,632

Outbuilding - £10,432

Build a Mansard loft conversion - £52,432

Loft conversion - £37,800

Build a kitchen extension - £42,432

Hip to gable loft conversion - £42,432

Granny annexe - £87,432

Garden office - £10,432

Convert a Garage - £16,432

Garage - £18,932

Build a flat roof extension - £22,432

Build a dormer loft conversion - £42,432

Concrete foundations - £6,682

Convert a bungalow loft - £29,432

Convert a basement - £42,360