From £16,996
Honka UK Ltd is a trusted extension builder serving customers in North Devon and the surrounding area. Contact us to today to get a competitive quo...
From £16,908
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,188
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,028
Need an Extension Builder in North Devon? Chloe Property Design has been helping local clients (20 mile radius) with their extension buildering job...
From £17,148
Experienced extension builder ready to quote for your work. Taylor Made Projects is the best extension builder in North Devon. No obligation free q...
From £17,028
Experienced extension builder ready to quote for your work. T.P Woods is the best extension builder in North Devon. No obligation free quotes and m...
From £17,348
Copps Property Maintenance are here to help customers who need an Extension Builder in North Devon. We offer a competitive rate to complete all you...
From £17,172
N J BOWEN BUILDING LTD is an established and experienced local extension builder in North Devon. Please contact us for a free, no obligation quote ...
From £16,868
Steve And Ray Patt Builders & Decorators is an established extension buildering business in North Devon. We come highly recommended and provide com...

Underpinning ranges from £16,868 (Steve And Ray Patt Builders & Decorators based in EX39) to £17,348 (Copps Property Maintenance based in EX38), 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 North Devon by posting a job with HaMuch and we will send it to extension builders in North Devon.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Barnstaple | £25 | £196 |
| Underpin A Building near Bideford | £22 | £174 |
| Underpin A Building near Tiverton | £25 | £202 |
| Underpin A Building near Exeter | £27 | £221 |
| Underpin A Building near Vale of Glamorgan | £29 | £217 |
| Underpin A Building near Porthcawl | £33 | £252 |
| Underpin A Building near Barry | £33 | £218 |
| Underpin A Building near East Devon | £27 | £221 |
| Underpin A Building near Exmouth | £24 | £210 |
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 - £17,085

Two storey extension - £87,377

Build a timber frame extension - £25,585

Build a swimming pool - £80,585

Single storey extension - £46,696

Side return extension - £36,829

Install an RSJ - £1,785

Outbuilding - £9,585

Build a Mansard loft conversion - £51,585

Loft conversion - £29,858

Build a kitchen extension - £41,585

Hip to gable loft conversion - £41,585

Granny annexe - £86,585

Garden office - £9,585

Convert a Garage - £15,585

Garage - £18,085

Build a flat roof extension - £21,585

Build a dormer loft conversion - £41,585

Concrete foundations - £5,835

Convert a bungalow loft - £28,585

Convert a basement - £32,829