From £16,876
Experienced extension builder ready to quote for your work. Glencroft Builders Ltd is the best extension builder in Port Riddell. No obligation fre...
From £17,492
Relax... you have found a reliable extension builder in Port Riddell. Adrian K Wilson Roofing Specialist is a friendly and reliable company based i...
From £17,604
DRUMKINNON JOINERY & BUILDING is a trusted extension builder serving customers in Port Riddell and the surrounding area. Contact us to today to get...
From £17,636
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,788
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,100
Trusted and professional extension builder in Port Riddell. Experienced in all extension buildering work and keeping within budget and on quote. CR...
From £18,108
MARTIN POWER BUILDERS are here to help customers who need an Extension Builder in Port Riddell. We offer a competitive rate to complete all your ex...
From £17,612
Need to find an Extension Builder near you for all your extension buildering work?
Price It Cost Consultants Ltd provides a local, trusted ...
From £17,580
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Underpinning ranges from £16,876 (Glencroft Builders Ltd based in G81) to £18,108 (MARTIN POWER BUILDERS based in PA16), 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 Port Riddell by posting a job with HaMuch and we will send it to extension builders in Port Riddell.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Port Glasgow | £32 | £250 |
| Underpin A Building near Greenock | £30 | £243 |
| Underpin A Building near Dumbarton | £29 | £232 |
| Underpin A Building near Renfrewshire | £54 | £398 |
| Underpin A Building near Johnstone | £52 | £381 |
| Underpin A Building near Erskine | £34 | £258 |
| Underpin A Building near Clydebank | £35 | £264 |
| Underpin A Building near Paisley | £34 | £259 |
| Underpin A Building near Renfrew | £35 | £263 |
| Underpin A Building near Kilwinning | £33 | £250 |
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 - £17,533

Two storey extension - £88,049

Build a timber frame extension - £26,033

Build a swimming pool - £81,033

Single storey extension - £55,658

Side return extension - £41,870

Install an RSJ - £2,233

Outbuilding - £10,033

Build a Mansard loft conversion - £52,033

Loft conversion - £34,058

Build a kitchen extension - £42,033

Hip to gable loft conversion - £42,033

Granny annexe - £87,033

Garden office - £10,033

Convert a Garage - £16,033

Garage - £18,533

Build a flat roof extension - £22,033

Build a dormer loft conversion - £42,033

Concrete foundations - £6,283

Convert a bungalow loft - £29,033

Convert a basement - £37,870