Extension builder estimates (based on hourly rates) to build a single storey extension in CA17
Range from the cheapest single storey extension £38160 (Helmside Building Services based in LA9) to the dearest single storey extension £42960 (ROJ.house based in LA9).
Comparing extension builders estimates for fitting a downstairs toilet gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes to build a single storey extension in CA17 by posting a job with HaMuch and we will send it to extension builders in CA17.
Estimates for common extension builder jobs in CA17;
| Job | Estimate |
| Underpinning a house | £17033 |
| Build a two storey extension | £87299 |
| Build a timber frame extension | £25533 |
| Install a swimming pool | £80533 |
| Cost to build a single storey extension | £40651 |
| Cost to build a side return extension | £32241 |
| Install an RSJ | £1733 |
| Build an outbuilding | £9533 |
| Build a mansard loft conversion | £51533 |
| Cost of a loft conversion | £29368 |
| Build a kitchen extension | £41533 |
| Build a hip to gable loft conversion | £41533 |
| Build a granny annexe | £86533 |
| Build a garden office | £9533 |
| Convert a garage | £15533 |
| Build a new garage | £18033 |
| Build a flat roof extension | £21533 |
| Build a dormer loft conversion | £41533 |
| Lay a concrete foundation | £5783 |
| Convert a bungalow loft | £28533 |
| Basement conversion cost | £32241 |
Rates for other CA17 trades
Extension Builders in CA17
| Business name | Single storey extension cost |
|---|---|
| NEWBY BUILDING & CONSTRUCTION, , CA10 | £38320 |
| ROJ.house, Cumbria, LA9 | £42960 |
| STEPHEN FELLER (BUILDER), , LA9 | £41360 |
| Absolute Build, Kendal, LA9 | £42000 |
| CHRIS ELLWOOD BUILDING CONTR, , LA9 | £40880 |
| SBG CONSTRUCTION LTD, , LA9 | £40880 |
| Helmside Building Services, Kendal, LA9 | £38160 |