From £17,564
Trusted and professional extension builder in Kings Langley. Experienced in all extension buildering work and keeping within budget and on quote. T...
From £17,916
M DUNNE BUILDER is a trusted extension builder serving customers in Kings Langley and the surrounding area. Contact us to today to get a competitiv...
From £17,588
Need an Extension Builder in Kings Langley? PM HOBBS BUILDING SERVICES has been helping local clients (10 mile radius) with their extension builder...
From £17,940
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,516
Trusted and professional extension builder in Kings Langley. Experienced in all extension buildering work and keeping within budget and on quote. A...
From £17,940
Need to find an Extension Builder near you for all your extension buildering work?
Rob Higgs Building & Carpentry provides a local, trusted...
From £17,636
Experienced extension builder ready to quote for your work. SWAT Design and Build Ltd is the best extension builder in Kings Langley. No obligation...
From £17,636
Experienced extension builder ready to quote for your work. Building & Renovation Services Zdzislaw Zalewski is the best extension builder in Kings...
From £17,636
Experienced extension builder ready to quote for your work. Murati Building LTD is the best extension builder in Kings Langley. No obligation free ...
From £17,652
JH Refurbishments are here to help customers who need an Extension Builder in Kings Langley. We offer a competitive rate to complete all your exten...

Underpinning ranges from £17,516 (All Weather Roofing (Herts) LTD based in WD4) to £17,940 (Evolved Glazing Solutions Limited based in HP3), 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 Kings Langley by posting a job with HaMuch and we will send it to extension builders in Kings Langley.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Dacorum | £42 | £269 |
| Underpin A Building near Hemel Hempstead | £42 | £270 |
| Underpin A Building near Rickmansworth | £42 | £278 |
| Underpin A Building near Watford | £43 | £278 |
| Underpin A Building near St Albans | £63 | £288 |
| Underpin A Building near Bushey | £42 | £276 |
| Underpin A Building near Berkhamsted | £41 | £263 |
| Underpin A Building near Chesham | £42 | £277 |
| Underpin A Building near Borehamwood | £42 | £270 |
| Underpin A Building near Harpenden | £86 | £315 |
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 - £17,702

Two storey extension - £88,304

Build a timber frame extension - £26,202

Build a swimming pool - £81,202

Single storey extension - £59,048

Side return extension - £43,777

Install an RSJ - £2,402

Outbuilding - £10,202

Build a Mansard loft conversion - £52,202

Loft conversion - £35,648

Build a kitchen extension - £42,202

Hip to gable loft conversion - £42,202

Granny annexe - £87,202

Garden office - £10,202

Convert a Garage - £16,202

Garage - £18,702

Build a flat roof extension - £22,202

Build a dormer loft conversion - £42,202

Concrete foundations - £6,452

Convert a bungalow loft - £29,202

Convert a basement - £39,777