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Relax... you have found a reliable extension builder in Leatherhead. GDW Construction is a friendly and reliable company based in Leatherhead who c...
Need to find an Extension Builder near you for all your extension buildering work?
OAK HOUSE BESPOKE BUILDERS provides a local, trusted ext...
Russell Worcester
R & R Roofing Guildford are here to help customers who need an Extension Builder in Leatherhead. We offer a competitive rate to complete all your e...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Relax... you have found a reliable extension builder in Leatherhead. D & R Roofing & Loft Conversions, Building & Design is a friendly and reliable...
David Phelan
Please visit our web site. Www. Dapconstruction. Co . Uk to c all our work and client recommendations.
Need an Extension Builder in Leatherhead? FLUID CONSTRUCTION has been helping local clients (10 mile radius) with their extension buildering jobs f...
Hilton building contractors ltd is a trusted extension builder serving customers in Leatherhead and the surrounding area. Contact us to today to ge...
Mick Winn
All of our work is guaranteed and covered by public liability and third party insurance for £5 million, giving our customers absolute peace of min...

Underpinning ranges from £17,436 (D A P CONSTRUCTION based in KT4) to £18,300 (GDW Construction based in SM3), 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 Leatherhead by posting a job with HaMuch and we will send it to extension builders in Leatherhead.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Epsom | £44 | £275 |
| Underpin A Building near Ewell | £44 | £275 |
| Underpin A Building near Tadworth | £41 | £271 |
| Underpin A Building near Great Bookham | £42 | £281 |
| Underpin A Building near Reigate & Banstead | £41 | £271 |
| Underpin A Building near Esher | £43 | £274 |
| Underpin A Building near Elmbridge | £44 | £278 |
| Underpin A Building near Sutton | £43 | £274 |
| Underpin A Building near Walton-on-Thames | £43 | £277 |
| Underpin A Building near Reigate | £40 | £270 |
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 - £17,765

Two storey extension - £88,397

Build a timber frame extension - £26,265

Build a swimming pool - £81,265

Single storey extension - £60,296

Side return extension - £44,479

Install an RSJ - £2,465

Outbuilding - £10,265

Build a Mansard loft conversion - £52,265

Loft conversion - £36,233

Build a kitchen extension - £42,265

Hip to gable loft conversion - £42,265

Granny annexe - £87,265

Garden office - £10,265

Convert a Garage - £16,265

Garage - £18,765

Build a flat roof extension - £22,265

Build a dormer loft conversion - £42,265

Concrete foundations - £6,515

Convert a bungalow loft - £29,265

Convert a basement - £40,479