Range from the cheapest single storey extension £26000 (Weathersealed UK based in DL1) to the dearest single storey extension £44720 (Matt Grange Gas & Oil Heating Services based in TS18).
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 DL7 by posting a job with HaMuch and we will send it to extension builders in DL7.
Job | Estimate |
Underpinning a house | £17028 |
Build a two storey extension | £87291 |
Build a timber frame extension | £25528 |
Install a swimming pool | £80528 |
Cost to build a single storey extension | £40552 |
Cost to build a side return extension | £32185 |
Install an RSJ | £1728 |
Build an outbuilding | £9528 |
Build a mansard loft conversion | £51528 |
Cost of a loft conversion | £29321 |
Build a kitchen extension | £41528 |
Build a hip to gable loft conversion | £41528 |
Build a granny annexe | £86528 |
Build a garden office | £9528 |
Convert a garage | £15528 |
Build a new garage | £18028 |
Build a flat roof extension | £21528 |
Build a dormer loft conversion | £41528 |
Lay a concrete foundation | £5778 |
Convert a bungalow loft | £28528 |
Basement conversion cost | £32185 |