Extension builder estimates (based on hourly rates) to build a single storey extension in CH45
Range from the cheapest single storey extension £32400 (Priwood Construction Ltd based in L21) to the dearest single storey extension £50000 (J.L Construction based in L22).
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 CH45 by posting a job with HaMuch and we will send it to extension builders in CH45.
Estimates for common extension builder jobs in CH45;
| Job | Estimate |
| Underpinning a house | £17047 |
| Build a two storey extension | £87320 |
| Build a timber frame extension | £25547 |
| Install a swimming pool | £80547 |
| Cost to build a single storey extension | £40931 |
| Cost to build a side return extension | £32399 |
| Install an RSJ | £1747 |
| Build an outbuilding | £9547 |
| Build a mansard loft conversion | £51547 |
| Cost of a loft conversion | £29499 |
| Build a kitchen extension | £41547 |
| Build a hip to gable loft conversion | £41547 |
| Build a granny annexe | £86547 |
| Build a garden office | £9547 |
| Convert a garage | £15547 |
| Build a new garage | £18047 |
| Build a flat roof extension | £21547 |
| Build a dormer loft conversion | £41547 |
| Lay a concrete foundation | £5797 |
| Convert a bungalow loft | £28547 |
| Basement conversion cost | £32399 |