From £17,812
Relax... you have found a reliable extension builder in West Watford. Frame Brickwork is a friendly and reliable company based in West Watford who ...
From £20,260
Trusted and professional extension builder in West Watford. Experienced in all extension buildering work and keeping within budget and on quote. De...
From £17,524
A&T Building is an established extension buildering business in West Watford. We come highly recommended and provide competitive quotes for your wo...
From £17,780
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 £17,924
Experienced extension builder ready to quote for your work. 1st Choice Builders UK is the best extension builder in West Watford. No obligation fre...
From £17,644
Primrose Projects is an established and experienced local extension builder in West Watford. Please contact us for a free, no obligation quote and ...
From £17,964
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 £17,876
Experienced extension builder ready to quote for your work. MAINCORE BUILDING SERVICES LTD is the best extension builder in West Watford. No obliga...
From £17,772
Relax... you have found a reliable extension builder in West Watford. Tonybuild is a friendly and reliable company based in West Watford who consid...
From £17,892
Relax... you have found a reliable extension builder in West Watford. D ROSE BUILDING SERVICES is a friendly and reliable company based in West Wat...

Underpinning ranges from £17,524 (A&T Building based in WD18) to £20,260 (Design & Build Builders Ltd based in WD18), 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 West Watford by posting a job with HaMuch and we will send it to extension builders in West Watford.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Watford | £43 | £278 |
| Underpin A Building near Bushey | £42 | £276 |
| Underpin A Building near Rickmansworth | £42 | £278 |
| Underpin A Building near Harrow | £43 | £271 |
| Underpin A Building near Borehamwood | £42 | £270 |
| Underpin A Building near Gerrards Cross | £43 | £282 |
| Underpin A Building near Hillingdon | £63 | £276 |
| Underpin A Building near Dacorum | £42 | £269 |
| Underpin A Building near St Albans | £63 | £288 |
| Underpin A Building near Hemel Hempstead | £42 | £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 - £18,045

Two storey extension - £88,817

Build a timber frame extension - £26,545

Build a swimming pool - £81,545

Single storey extension - £65,896

Side return extension - £47,629

Install an RSJ - £2,745

Outbuilding - £10,545

Build a Mansard loft conversion - £52,545

Loft conversion - £38,858

Build a kitchen extension - £42,545

Hip to gable loft conversion - £42,545

Granny annexe - £87,545

Garden office - £10,545

Convert a Garage - £16,545

Garage - £19,045

Build a flat roof extension - £22,545

Build a dormer loft conversion - £42,545

Concrete foundations - £6,795

Convert a bungalow loft - £29,545

Convert a basement - £43,629