Mandala Building Services is a family-owned design and build maintenance company, encompassing everything from residential refurbishment to large-s...
Ciaran Feeney
Need to find an Extension Builder near you for all your extension buildering work?
COMPLETE CIVIL ENGINEERING provides a local, trusted ext...
Chrysalis are here to help customers who need an Extension Builder in Bushey. We offer a competitive rate to complete all your extension buildering...
WHIPP CONSTRUCTION LTD is an established extension buildering business in Bushey. We come highly recommended and provide competitive quotes for you...
C & A Contractors is a trusted extension builder serving customers in Bushey and the surrounding area. Contact us to today to get a competitive quo...
J Wijayamohan
JJSR Construction Ltd is an established and experienced local extension builder in Bushey. Please contact us for a free, no obligation quote and co...
Relax... you have found a reliable extension builder in Bushey. PERFORMA CONSTRUCTION LIMITED is a friendly and reliable company based in Bushey wh...
Volton Building & Paving is a trusted extension builder serving customers in Bushey and the surrounding area. Contact us to today to get a competit...
Krystian Wojasiewicz
Krystian Wojasiewicz is a trusted extension builder serving customers in Bushey and the surrounding area. Contact us to today to get a competitive ...
Trusted and professional extension builder in Bushey. Experienced in all extension buildering work and keeping within budget and on quote. WHITE EA...

Underpinning ranges from £17,548 (WHITE EAGLE CONSTRUCTION LTD based in NW9) to £18,012 (Mandala Building Services based in WD6), 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 Bushey by posting a job with HaMuch and we will send it to extension builders in Bushey.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Bushey | £42 | £276 |
| Underpin A Building near Watford | £43 | £278 |
| Underpin A Building near Borehamwood | £42 | £271 |
| Underpin A Building near Harrow | £43 | £270 |
| Underpin A Building near Rickmansworth | £42 | £278 |
| Underpin A Building near High Barnet | £43 | £272 |
| Underpin A Building near Brent Cross | £43 | £272 |
| Underpin A Building near St Albans | £63 | £289 |
| Underpin A Building near Hillingdon | £63 | £276 |
| Underpin A Building near Potters Bar | £43 | £273 |
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 - £17,732

Two storey extension - £88,348

Build a timber frame extension - £26,232

Build a swimming pool - £81,232

Single storey extension - £59,640

Side return extension - £44,110

Install an RSJ - £2,432

Outbuilding - £10,232

Build a Mansard loft conversion - £52,232

Loft conversion - £35,925

Build a kitchen extension - £42,232

Hip to gable loft conversion - £42,232

Granny annexe - £87,232

Garden office - £10,232

Convert a Garage - £16,232

Garage - £18,732

Build a flat roof extension - £22,232

Build a dormer loft conversion - £42,232

Concrete foundations - £6,482

Convert a bungalow loft - £29,232

Convert a basement - £40,110