From £17,412
Experienced extension builder ready to quote for your work. Mole Valley Builders is the best extension builder in RH5. No obligation free quotes an...
From £17,668
Established in 2013, Mole Valley Builders is a family-owned, independent building company. Our team shares more than 40 years of industry experienc...
From £17,980
Stovetech Surrey are professional installers of multi-fuel and wood burning stoves.We are OFTEC registered ensuring that all of our work co...
From £17,932
Relax... you have found a reliable extension builder in RH5. Atp Building Services is a friendly and reliable company based in RH5 who consider no ...
From £17,908
Garage Door Repairs is an established extension buildering business in RH5. We come highly recommended and provide competitive quotes for your work...
From £17,644
Surrey Hills Construction is an established and experienced local extension builder in RH5. Please contact us for a free, no obligation quote and c...
From £18,028
Founded in 2011 by Clive Bordoli and Jim Kelting, we set out to form and lead a team of tradesmen who could share our work ethic and attention to d...
From £17,988
Our family-run building services company JGP Plastering & Brickwork Ltd was established in 2006. Since then we have been helping customers in Surre...
From £17,380
T J WILD BUILDING CONTRACTOR is an established and experienced local extension builder in RH5. Please contact us for a free, no obligation quote an...

Underpinning ranges from £17,380 (T J WILD BUILDING CONTRACTOR based in RH6) to £18,028 (Surrey Hills Construction based in RH5), 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 RH5 by posting a job with HaMuch and we will send it to extension builders in RH5.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Great Bookham | £42 | £281 |
| Underpin A Building near Reigate | £40 | £270 |
| Underpin A Building near Tadworth | £41 | £271 |
| Underpin A Building near Horley | £38 | £258 |
| Underpin A Building near Redhill | £41 | £269 |
| Underpin A Building near Reigate & Banstead | £41 | £271 |
| Underpin A Building near Epsom | £43 | £274 |
| Underpin A Building near Horsham | £38 | £265 |
| Underpin A Building near Crawley | £38 | £255 |
| Underpin A Building near Guildford | £53 | £298 |
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 - £17,750

Two storey extension - £88,376

Build a timber frame extension - £26,250

Build a swimming pool - £81,250

Single storey extension - £60,008

Side return extension - £44,317

Install an RSJ - £2,450

Outbuilding - £10,250

Build a Mansard loft conversion - £52,250

Loft conversion - £36,098

Build a kitchen extension - £42,250

Hip to gable loft conversion - £42,250

Granny annexe - £87,250

Garden office - £10,250

Convert a Garage - £16,250

Garage - £18,750

Build a flat roof extension - £22,250

Build a dormer loft conversion - £42,250

Concrete foundations - £6,500

Convert a bungalow loft - £29,250

Convert a basement - £40,317