Extension builder estimates (based on hourly rates) to build a single storey extension in B6
Range from the cheapest single storey extension £40560 (D&J Advanced Builders based in B44) to the dearest single storey extension £50000 (Low costi builders ltd based in B34).
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 B6 by posting a job with HaMuch and we will send it to extension builders in B6.
Estimates for common extension builder jobs in B6;
| Job | Estimate |
| Underpinning a house | £17105 |
| Build a two storey extension | £87407 |
| Build a timber frame extension | £25605 |
| Install a swimming pool | £80605 |
| Cost to build a single storey extension | £42096 |
| Cost to build a side return extension | £33054 |
| Install an RSJ | £1805 |
| Build an outbuilding | £9605 |
| Build a mansard loft conversion | £51605 |
| Cost of a loft conversion | £30045 |
| Build a kitchen extension | £41605 |
| Build a hip to gable loft conversion | £41605 |
| Build a granny annexe | £86605 |
| Build a garden office | £9605 |
| Convert a garage | £15605 |
| Build a flat roof extension | £21605 |
| Build a dormer loft conversion | £41605 |
| Lay a concrete foundation | £5855 |
| Convert a bungalow loft | £28605 |
| Basement conversion cost | £33054 |