From £17,884
Carlos Gurrea is an established and experienced local extension builder in Rickmansworth. Please contact us for a free, no obligation quote and com...
From £17,540
Hertfordshir, WD3
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,548
Personable and individual interior design service designed around what you love.
From £18,060
Rickmansworth Herefordshire, WD3
Relax... you have found a reliable extension builder in Rickmansworth. Cube Design is a friendly and reliable company based in Rickmansworth who co...
From £17,892
BEEN AROUND A LONG TIME, WE WILL ONLY NOW TAKE ON ONE CONTRACT AT A TIME, WHEN ONES FINISHING WE START THE NEXT ONE IF POSSABLE, THUS GIVING ...
From £17,892
Rickmansworth, WD3
Relax... you have found a reliable extension builder in Rickmansworth. D ROSE BUILDING SERVICES is a friendly and reliable company based in Rickman...
From £17,724
Experienced extension builder ready to quote for your work. CLPM Limited is the best extension builder in Rickmansworth. No obligation free quotes ...
From £17,876
Rickmansworth, WD3
Experienced extension builder ready to quote for your work. MAINCORE BUILDING SERVICES LTD is the best extension builder in Rickmansworth. No oblig...
From £18,356
KATELL PROPERTY MAINTENANCE is a trusted extension builder serving customers in Rickmansworth and the surrounding area. Contact us to today to get ...
From £17,716
Rickmansworth Hertfordshire, WD3
We are passionate about building bespoke homes using quality products that create unique features both internally and externally.

Underpinning ranges from £17,540 (Swan Windows & Son Limited based in WD3) to £18,356 (KATELL PROPERTY MAINTENANCE based in WD3), 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 Rickmansworth by posting a job with HaMuch and we will send it to extension builders in Rickmansworth.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Rickmansworth | £42 | £278 |
| Underpin A Building near Watford | £43 | £278 |
| Underpin A Building near Gerrards Cross | £43 | £282 |
| Underpin A Building near Bushey | £42 | £276 |
| Underpin A Building near Hillingdon | £62 | £276 |
| Underpin A Building near Dacorum | £42 | £269 |
| Underpin A Building near Chesham | £42 | £277 |
| Underpin A Building near Hemel Hempstead | £42 | £270 |
| Underpin A Building near Harrow | £43 | £270 |
| Underpin A Building near Borehamwood | £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 - £17,849

Two storey extension - £88,523

Build a timber frame extension - £26,349

Build a swimming pool - £81,349

Single storey extension - £61,976

Side return extension - £45,424

Install an RSJ - £2,549

Outbuilding - £10,349

Build a Mansard loft conversion - £52,349

Loft conversion - £37,020

Build a kitchen extension - £42,349

Hip to gable loft conversion - £42,349

Granny annexe - £87,349

Garden office - £10,349

Convert a Garage - £16,349

Garage - £18,849

Build a flat roof extension - £22,349

Build a dormer loft conversion - £42,349

Concrete foundations - £6,599

Convert a bungalow loft - £29,349

Convert a basement - £41,424