Mandala Building Services is a family-owned design and build maintenance company, encompassing everything from residential refurbishment to large-s...
Samuele Paolini
Need an Extension Builder in Borehamwood? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs for ...
New Finishes is a trusted extension builder serving customers in Borehamwood and the surrounding area. Contact us to today to get a competitive quo...
Relax... you have found a reliable extension builder in Borehamwood. Pavillion Building Services is a friendly and reliable company based in Boreha...
Rafal Szczepanski
Our homes need to be regularly maintained and from time to time they need to be rejuvenated, modernised and enhanced. When it comes to building wor...
Homeland Building Ltd is a trusted extension builder serving customers in Borehamwood and the surrounding area. Contact us to today to get a compet...
Wittick Building Ltd is a trusted extension builder serving customers in Borehamwood and the surrounding area. Contact us to today to get a competi...
J Wijayamohan
JJSR Construction Ltd is an established and experienced local extension builder in Borehamwood. Please contact us for a free, no obligation quote a...
Trusted and professional extension builder in Borehamwood. Experienced in all extension buildering work and keeping within budget and on quote. WHI...
Amarjeet Gill
Architecture and Construction all in one place.
FREE DRAWINGS for all projects we build.

Underpinning ranges from £17,444 (New Finishes based in EN4) to £18,060 (Rafix Building based in EN4), 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 Borehamwood by posting a job with HaMuch and we will send it to extension builders in Borehamwood.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Borehamwood | £42 | £271 |
| Underpin A Building near High Barnet | £43 | £272 |
| Underpin A Building near Bushey | £42 | £276 |
| Underpin A Building near Potters Bar | £43 | £273 |
| Underpin A Building near Brent Cross | £43 | £272 |
| Underpin A Building near Watford | £43 | £278 |
| Underpin A Building near Harrow | £43 | £270 |
| Underpin A Building near Muswell Hill | £44 | £273 |
| Underpin A Building near St Albans | £63 | £289 |
| Underpin A Building near Hatfield | £65 | £285 |
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 - £17,718

Two storey extension - £88,326

Build a timber frame extension - £26,218

Build a swimming pool - £81,218

Single storey extension - £59,352

Side return extension - £43,948

Install an RSJ - £2,418

Outbuilding - £10,218

Build a Mansard loft conversion - £52,218

Loft conversion - £35,790

Build a kitchen extension - £42,218

Hip to gable loft conversion - £42,218

Granny annexe - £87,218

Garden office - £10,218

Convert a Garage - £16,218

Garage - £18,718

Build a flat roof extension - £22,218

Build a dormer loft conversion - £42,218

Concrete foundations - £6,468

Convert a bungalow loft - £29,218

Convert a basement - £39,948