From £17,508
Our building services company Conversion Property and Electrical Services has 17 years of experience in the industry. We have been helping customer...
From £17,412
Experienced extension builder ready to quote for your work. Progressive Design London is the best extension builder in North Watford. No obligation...
From £17,644
Primrose Projects is an established and experienced local extension builder in North Watford. Please contact us for a free, no obligation quote and...
From £17,380
Relax... you have found a reliable extension builder in North Watford. Crown Building is a friendly and reliable company based in North Watford who...
From £19,004
We are experienced and skilled landscapers, covering a wide range of landscape gardening, driveway installations and groundworks. With over 15 year...
From £17,772
Relax... you have found a reliable extension builder in North Watford. Tonybuild is a friendly and reliable company based in North Watford who cons...
From £17,924
Experienced extension builder ready to quote for your work. 1st Choice Builders UK is the best extension builder in North Watford. No obligation fr...
From £18,572
Hello I am Emilian , the proud owner of Eeoc Ltd, A little about me With many happy and returning customers over the last 14 years, y...
From £17,636
Experienced extension builder ready to quote for your work. Murati Building LTD is the best extension builder in North Watford. No obligation free ...
From £17,724
T N Roofing is an established extension buildering business in North Watford. We come highly recommended and provide competitive quotes for your wo...

Underpinning ranges from £17,380 (Crown Building based in WD24) to £19,004 (BMS Landscaping & Paving LTD based in WD24), 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 North Watford by posting a job with HaMuch and we will send it to extension builders in North 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 Borehamwood | £42 | £270 |
| Underpin A Building near St Albans | £63 | £288 |
| Underpin A Building near Dacorum | £42 | £269 |
| Underpin A Building near Harrow | £43 | £271 |
| Underpin A Building near Hemel Hempstead | £42 | £270 |
| Underpin A Building near Gerrards Cross | £43 | £282 |
| Underpin A Building near Hillingdon | £63 | £276 |
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 - £17,858

Two storey extension - £88,536

Build a timber frame extension - £26,358

Build a swimming pool - £81,358

Single storey extension - £62,152

Side return extension - £45,523

Install an RSJ - £2,558

Outbuilding - £10,358

Build a Mansard loft conversion - £52,358

Loft conversion - £37,103

Build a kitchen extension - £42,358

Hip to gable loft conversion - £42,358

Granny annexe - £87,358

Garden office - £10,358

Convert a Garage - £16,358

Garage - £18,858

Build a flat roof extension - £22,358

Build a dormer loft conversion - £42,358

Concrete foundations - £6,608

Convert a bungalow loft - £29,358

Convert a basement - £41,523