Extension builder estimates (based on hourly rates) to build a single storey extension in CA15
Range from the cheapest single storey extension £34000 (Ian Groves based in CA12) to the dearest single storey extension £42000 (STAN MARTIN T/A based in CA26).
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 CA15 by posting a job with HaMuch and we will send it to extension builders in CA15.
Estimates for common extension builder jobs in CA15;
| Job | Estimate |
| Underpinning a house | £16861 |
| Build a two storey extension | £87042 |
| Build a timber frame extension | £25361 |
| Install a swimming pool | £80361 |
| Cost to build a single storey extension | £37223 |
| Cost to build a side return extension | £30313 |
| Install an RSJ | £1561 |
| Build an outbuilding | £9361 |
| Build a mansard loft conversion | £51361 |
| Cost of a loft conversion | £27761 |
| Build a kitchen extension | £41361 |
| Build a hip to gable loft conversion | £41361 |
| Build a granny annexe | £86361 |
| Build a garden office | £9361 |
| Convert a garage | £15361 |
| Build a new garage | £17861 |
| Build a flat roof extension | £21361 |
| Build a dormer loft conversion | £41361 |
| Lay a concrete foundation | £5611 |
| Convert a bungalow loft | £28361 |
| Basement conversion cost | £30313 |
Rates for other CA15 trades
Extension Builders in CA15
| Business name | Single storey extension cost |
|---|---|
| STAN MARTIN T/A, Frizington, CA26 | £42000 |
| William king Construction, Jacktrees Road, Cleator moor, Cumbria CA25 5B, CA25 | £37680 |
| M & K BUILDERS KESWICK LIMITED, , CA12 | £36240 |
| PAUL LITTLE BUILDING MAINT, , CA7 | £34480 |
| Ian Groves, Penrith , CA12 | £34000 |
| Sc brickwork, Cumbria, CA22 | £38960 |
| B & C ATKINSON LTD, Egremont , CA22 | £37200 |