Extension builder estimates (based on hourly rates) to build a single storey extension in B70
Range from the cheapest single storey extension £29200 (FIVE OAKS BUILDING LTD based in DY4) to the dearest single storey extension £66000 (TG Building Services & Son based in B71).
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 B70 by posting a job with HaMuch and we will send it to extension builders in B70.
Estimates for common extension builder jobs in B70;
| Job | Estimate |
| Underpinning a house | £17100 |
| Build a two storey extension | £87400 |
| Build a timber frame extension | £25600 |
| Install a swimming pool | £80600 |
| Cost to build a single storey extension | £42000 |
| Cost to build a side return extension | £33000 |
| Install an RSJ | £1800 |
| Build an outbuilding | £9600 |
| Build a mansard loft conversion | £51600 |
| Cost of a loft conversion | £30000 |
| Build a kitchen extension | £41600 |
| Build a hip to gable loft conversion | £41600 |
| Build a granny annexe | £86600 |
| Build a garden office | £9600 |
| Convert a garage | £15600 |
| Build a new garage | £18100 |
| Build a flat roof extension | £21600 |
| Build a dormer loft conversion | £41600 |
| Lay a concrete foundation | £5850 |
| Convert a bungalow loft | £28600 |
| Basement conversion cost | £33000 |