From £17,820
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,516
Relax... you have found a reliable extension builder in RH7. JESMOR CONSTRUCTION LTD is a friendly and reliable company based in RH7 who consider n...
From £17,228
Apsley Wall Ltd is an established extension buildering business in RH7. We come highly recommended and provide competitive quotes for your work.
From £17,868
Relax... you have found a reliable extension builder in RH7. WMT Building Services Ltd is a friendly and reliable company based in RH7 who consider...
From £17,788
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
From £17,324
James Knott & Son Ltd are here to help customers who need an Extension Builder in RH7. We offer a competitive rate to complete all your extension b...
From £17,836
Trusted and professional extension builder in RH7. Experienced in all extension buildering work and keeping within budget and on quote. Dance & Co ...
From £17,652
Duaris Ltd is an established extension buildering business in RH7. We come highly recommended and provide competitive quotes for your work.
From £17,724
GB Brickwork is a trusted extension builder serving customers in RH7 and the surrounding area. Contact us to today to get a competitive quote for e...
From £17,556
Whitehouse Build & Design Ltd is an established and experienced local extension builder in RH7. Please contact us for a free, no obligation quote a...

Underpinning ranges from £17,228 (Apsley Wall Ltd based in RH19) to £17,868 (WMT Building Services Ltd based in RH7), 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 RH7 by posting a job with HaMuch and we will send it to extension builders in RH7.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near East Grinstead | £32 | £220 |
| Underpin A Building near Horley | £35 | £234 |
| Underpin A Building near Crawley | £33 | £227 |
| Underpin A Building near Caterham | £37 | £235 |
| Underpin A Building near Redhill | £36 | £236 |
| Underpin A Building near Reigate | £36 | £238 |
| Underpin A Building near Mid Sussex | £30 | £224 |
| Underpin A Building near Sevenoaks | £34 | £211 |
| Underpin A Building near Reigate & Banstead | £36 | £235 |
| Underpin A Building near Crowborough | £31 | £225 |
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 - £17,631

Two storey extension - £88,197

Build a timber frame extension - £26,131

Build a swimming pool - £81,131

Single storey extension - £57,624

Side return extension - £42,976

Install an RSJ - £2,331

Outbuilding - £10,131

Build a Mansard loft conversion - £52,131

Loft conversion - £34,980

Build a kitchen extension - £42,131

Hip to gable loft conversion - £42,131

Granny annexe - £87,131

Garden office - £10,131

Convert a Garage - £16,131

Garage - £18,631

Build a flat roof extension - £22,131

Build a dormer loft conversion - £42,131

Concrete foundations - £6,381

Convert a bungalow loft - £29,131

Convert a basement - £38,976