From £17,660
Trusted and professional extension builder in Banstead. Experienced in all extension buildering work and keeping within budget and on quote. PDL Pr...
From £17,572
Banstead, SM7
Need an Extension Builder in Banstead? GRC Landscapes has been helping local clients (10 mile radius) with their extension buildering jobs for many...
From £17,844
Relax... you have found a reliable extension builder in Banstead. NBNA Construction Ltd is a friendly and reliable company based in Banstead who co...
From £17,380
Banstead, SM7
Experienced extension builder ready to quote for your work. ANM BUILDERS LTD is the best extension builder in Banstead. No obligation free quotes a...
From £17,732
We are an experienced Interior Designer and builder . We have obsessive passion towards designing and building a highly personalised luxury interio...
From £17,612
Banstead Surrey, SM7
P4 Services a building company in Banstead, Surrey pride itself on having high standards. If you are looking for a building company for a new kitch...
From £17,580
Need an Extension Builder in Banstead? Safebuild Fitout has been helping local clients (10 mile radius) with their extension buildering jobs for ma...
From £17,708
Need to find an Extension Builder near you for all your extension buildering work?
KINGSMEAD CONSTRUCTION provides a local, trusted extensi...
From £17,900
Experienced extension builder ready to quote for your work. O G Electricals is the best extension builder in Banstead. No obligation free quotes an...
From £17,588
Norman Building Services Ltd is a trusted extension builder serving customers in Banstead and the surrounding area. Contact us to today to get a co...

Underpinning ranges from £17,380 (ANM BUILDERS LTD based in SM7) to £17,900 (O G Electricals based in CR5), 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 Banstead by posting a job with HaMuch and we will send it to extension builders in Banstead.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Epsom | £43 | £274 |
| Underpin A Building near Reigate & Banstead | £41 | £271 |
| Underpin A Building near Tadworth | £41 | £271 |
| Underpin A Building near Ewell | £43 | £274 |
| Underpin A Building near Sutton | £43 | £273 |
| Underpin A Building near Merton | £43 | £272 |
| Underpin A Building near Caterham | £43 | £272 |
| Underpin A Building near Reigate | £40 | £270 |
| Underpin A Building near Redhill | £41 | £269 |
| Underpin A Building near Croydon | £43 | £267 |
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 - £17,658

Two storey extension - £88,236

Build a timber frame extension - £26,158

Build a swimming pool - £81,158

Single storey extension - £58,152

Side return extension - £43,273

Install an RSJ - £2,358

Outbuilding - £10,158

Build a Mansard loft conversion - £52,158

Loft conversion - £35,228

Build a kitchen extension - £42,158

Hip to gable loft conversion - £42,158

Granny annexe - £87,158

Garden office - £10,158

Convert a Garage - £16,158

Garage - £18,658

Build a flat roof extension - £22,158

Build a dormer loft conversion - £42,158

Concrete foundations - £6,408

Convert a bungalow loft - £29,158

Convert a basement - £39,273