From £17,212
Need to find an Extension Builder near you for all your extension buildering work?
PLATINUM CONSTRUCTION provides a local, trusted extensio...
From £17,212
Trading since 1997 kitchens,bathrooms lofts patios roof work and much more
From £16,980
Need to find an Extension Builder near you for all your extension buildering work?
Donovan Construction provides a local, trusted extensio...
From £17,068
Torquay Builders Limited is an established and experienced local extension builder in PL21. Please contact us for a free, no obligation quote and c...
From £17,924
Java construction
provide a complete building service and design
we also provide building maitanance
w...
From £17,268
Need an Extension Builder in PL21? NCN Building & Maintenance Ltd has been helping local clients (20 mile radius) with their extension buildering j...
From £17,132
Need to find an Extension Builder near you for all your extension buildering work?
Emphatic Attics provides a local, trusted extension buil...
From £17,444
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,396
Bay Plumbing and Heating is an established extension buildering business in PL21. We come highly recommended and provide competitive quotes for you...

Underpinning ranges from £16,980 (Donovan Construction based in PL6) to £17,924 (JAVA CONSTRUCTION LTD based in PL7), 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 PL21 by posting a job with HaMuch and we will send it to extension builders in PL21.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Plymouth | £30 | £230 |
| Underpin A Building near Paignton | £27 | £222 |
| Underpin A Building near Newton Abbot | £27 | £236 |
| Underpin A Building near Torbay | £27 | £223 |
| Underpin A Building near Torquay | £28 | £223 |
| Underpin A Building near Teignbridge | £27 | £260 |
| Underpin A Building near Exmouth | £24 | £210 |
| Underpin A Building near Exeter | £27 | £221 |
| Underpin A Building near East Devon | £27 | £221 |
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 - £17,336

Two storey extension - £87,754

Build a timber frame extension - £25,836

Build a swimming pool - £80,836

Single storey extension - £51,720

Side return extension - £39,655

Install an RSJ - £2,036

Outbuilding - £9,836

Build a Mansard loft conversion - £51,836

Loft conversion - £32,213

Build a kitchen extension - £41,836

Hip to gable loft conversion - £41,836

Granny annexe - £86,836

Garden office - £9,836

Convert a Garage - £15,836

Garage - £18,336

Build a flat roof extension - £21,836

Build a dormer loft conversion - £41,836

Concrete foundations - £6,086

Convert a bungalow loft - £28,836

Convert a basement - £35,655