Reuben Sargent
Rjscarpentryconstruction is a well established company with over 30 years of experience in the carpentry and construction industries
From £17,564
JG Brickwork Services Limited is an established extension buildering business in RH16. We come highly recommended and provide competitive quotes fo...
From £17,308
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,612
Experienced extension builder ready to quote for your work. MRA CONSTRUCTION is the best extension builder in RH16. No obligation free quotes and m...
From £17,436
Extensions, Refurbishments & Loft ConversionsAt Keystone our mission is to help our clients imagine, design & build environments that enhance their...
From £17,348
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,860
TOLLEY CARPENTRY is an established extension buildering business in RH16. We come highly recommended and provide competitive quotes for your work.<...
From £17,236
Relax... you have found a reliable extension builder in RH16. Atlas Installations is a friendly and reliable company based in RH16 who consider no ...

Underpinning ranges from £17,236 (Atlas Installations based in RH15) to £18,100 (RJ's Carpentry Construction based in RH15), 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 RH16 by posting a job with HaMuch and we will send it to extension builders in RH16.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Haywards Heath | £35 | £256 |
| Underpin A Building near Mid Sussex | £35 | £261 |
| Underpin A Building near Burgess Hill | £36 | £240 |
| Underpin A Building near Crawley | £38 | £255 |
| Underpin A Building near East Grinstead | £37 | £259 |
| Underpin A Building near Horsham | £38 | £265 |
| Underpin A Building near Brighton and Hove | £35 | £251 |
| Underpin A Building near Horley | £38 | £258 |
| Underpin A Building near Crowborough | £36 | £258 |
| Underpin A Building near Brighton | £35 | £251 |
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 - £17,558

Two storey extension - £88,087

Build a timber frame extension - £26,058

Build a swimming pool - £81,058

Single storey extension - £56,160

Side return extension - £42,153

Install an RSJ - £2,258

Outbuilding - £10,058

Build a Mansard loft conversion - £52,058

Loft conversion - £34,294

Build a kitchen extension - £42,058

Hip to gable loft conversion - £42,058

Granny annexe - £87,058

Garden office - £10,058

Convert a Garage - £16,058

Garage - £18,558

Build a flat roof extension - £22,058

Build a dormer loft conversion - £42,058

Concrete foundations - £6,308

Convert a bungalow loft - £29,058

Convert a basement - £38,153