Extension builder estimates (based on hourly rates) to build a single storey extension in Walmley
Range from the cheapest single storey extension £30000 (J s building & maintenance services limited based in B26) to the dearest single storey extension £45200 (Sanwood based in B73).
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 Walmley by posting a job with HaMuch and we will send it to extension builders in Walmley.
Estimates for common extension builder jobs in Walmley;
| Job | Estimate |
| Underpinning a house | £17036 |
| Build a two storey extension | £87304 |
| Build a timber frame extension | £25536 |
| Install a swimming pool | £80536 |
| Cost to build a single storey extension | £40726 |
| Cost to build a side return extension | £32284 |
| Install an RSJ | £1736 |
| Build an outbuilding | £9536 |
| Build a mansard loft conversion | £51536 |
| Cost of a loft conversion | £29403 |
| Build a kitchen extension | £41536 |
| Build a hip to gable loft conversion | £41536 |
| Build a granny annexe | £86536 |
| Build a garden office | £9536 |
| Convert a garage | £15536 |
| Build a new garage | £18036 |
| Build a flat roof extension | £21536 |
| Build a dormer loft conversion | £41536 |
| Lay a concrete foundation | £5786 |
| Convert a bungalow loft | £28536 |
| Basement conversion cost | £32284 |