From £17,300
Relax... you have found a reliable extension builder in EX17. Out There Living is a friendly and reliable company based in EX17 who consider no job...
From £17,340
Our building services company Kingsleigh Homes Ltd was established in 2019, with over 30 years’ experience in the building trade, providing custo...
From £17,276
Relax... you have found a reliable extension builder in EX17. R BREWER CONSTRUCTION LTD is a friendly and reliable company based in EX17 who consid...
From £17,476
Blake Services is a trusted extension builder serving customers in EX17 and the surrounding area. Contact us to today to get a competitive quote fo...
From £17,452
The House Mechanic are here to help customers who need an Extension Builder in EX17. We offer a competitive rate to complete all your extension bui...
From £17,444
MAW BUILDERS is a trusted extension builder serving customers in EX17 and the surrounding area. Contact us to today to get a competitive quote for ...
From £16,812
I have been in business for 20years. I like to do a good job. The area covered is mainly mid Devon, I will travel to other areas if required.
From £17,484
Need an Extension Builder in EX17? Griffiths Construction has been helping local clients (20 mile radius) with their extension buildering jobs for ...
From £17,436
Trusted and professional extension builder in EX17. Experienced in all extension buildering work and keeping within budget and on quote. Evan Devel...
From £17,500
Reliable family run business established in 2003. All work previously undertaken has been generated purely through word of mouth and recommendation...

Underpinning ranges from £16,812 (JOHN WATTS PROPERTY MAINTENANCE based in EX16) to £17,500 (WEBB & SONS (SW) LTD based in EX1), 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 EX17 by posting a job with HaMuch and we will send it to extension builders in EX17.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Exeter | £27 | £221 |
| Underpin A Building near Tiverton | £25 | £202 |
| Underpin A Building near Teignbridge | £27 | £260 |
| Underpin A Building near Exmouth | £24 | £210 |
| Underpin A Building near East Devon | £27 | £221 |
| Underpin A Building near Newton Abbot | £27 | £236 |
| Underpin A Building near Barnstaple | £25 | £196 |
| Underpin A Building near Torquay | £28 | £223 |
| Underpin A Building near Paignton | £27 | £222 |
| Underpin A Building near Bideford | £22 | £174 |
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 - £17,352

Two storey extension - £87,778

Build a timber frame extension - £25,852

Build a swimming pool - £80,852

Single storey extension - £52,040

Side return extension - £39,835

Install an RSJ - £2,052

Outbuilding - £9,852

Build a Mansard loft conversion - £51,852

Loft conversion - £32,363

Build a kitchen extension - £41,852

Hip to gable loft conversion - £41,852

Granny annexe - £86,852

Garden office - £9,852

Convert a Garage - £15,852

Garage - £18,352

Build a flat roof extension - £21,852

Build a dormer loft conversion - £41,852

Concrete foundations - £6,102

Convert a bungalow loft - £28,852

Convert a basement - £35,835