Extension builder estimates (based on hourly rates) to build a single storey extension in SN5
Range from the cheapest single storey extension £26000 (Home tech improvement based in SN11) to the dearest single storey extension £46000 (Austen Dawson (UK) Ltd based in SN6).
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 SN5 by posting a job with HaMuch and we will send it to extension builders in SN5.
Estimates for common extension builder jobs in SN5;
| Job | Estimate |
| Underpinning a house | £17136 |
| Build a two storey extension | £87453 |
| Build a timber frame extension | £25636 |
| Install a swimming pool | £80636 |
| Cost to build a single storey extension | £42710 |
| Cost to build a side return extension | £33400 |
| Install an RSJ | £1836 |
| Build an outbuilding | £9636 |
| Build a mansard loft conversion | £51636 |
| Cost of a loft conversion | £30333 |
| Build a kitchen extension | £41636 |
| Build a hip to gable loft conversion | £41636 |
| Build a granny annexe | £86636 |
| Build a garden office | £9636 |
| Convert a garage | £15636 |
| Build a new garage | £18136 |
| Build a flat roof extension | £21636 |
| Build a dormer loft conversion | £41636 |
| Lay a concrete foundation | £5886 |
| Convert a bungalow loft | £28636 |
| Basement conversion cost | £33400 |