Extension builder estimates (based on hourly rates) to build a single storey extension in Shirley
Range from the cheapest single storey extension £30000 (J s building & maintenance services limited based in B26) to the dearest single storey extension £42480 (Mcmahon Roofing & Cladding Ltd based in B91).
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 Shirley by posting a job with HaMuch and we will send it to extension builders in Shirley.
Estimates for common extension builder jobs in Shirley;
| Job | Estimate |
| Underpinning a house | £17031 |
| Build a two storey extension | £87297 |
| Build a timber frame extension | £25531 |
| Install a swimming pool | £80531 |
| Cost to build a single storey extension | £40624 |
| Cost to build a side return extension | £32226 |
| Install an RSJ | £1731 |
| Build an outbuilding | £9531 |
| Build a mansard loft conversion | £51531 |
| Cost of a loft conversion | £29355 |
| Build a kitchen extension | £41531 |
| Build a hip to gable loft conversion | £41531 |
| Build a granny annexe | £86531 |
| Build a garden office | £9531 |
| Convert a garage | £15531 |
| Build a new garage | £18031 |
| Build a flat roof extension | £21531 |
| Build a dormer loft conversion | £41531 |
| Lay a concrete foundation | £5781 |
| Convert a bungalow loft | £28531 |
| Basement conversion cost | £32226 |