Extension builder estimates (based on hourly rates) to build a single storey extension in Northfield
Range from the cheapest single storey extension £40400 (Ciara Construction Company based in B45) to the dearest single storey extension £66000 (G S Electrical based in B66).
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 Northfield by posting a job with HaMuch and we will send it to extension builders in Northfield.
Estimates for common extension builder jobs in Northfield;
| Job | Estimate |
| Underpinning a house | £17112 |
| Build a two storey extension | £87418 |
| Build a timber frame extension | £25612 |
| Install a swimming pool | £80612 |
| Cost to build a single storey extension | £42243 |
| Cost to build a side return extension | £33137 |
| Install an RSJ | £1812 |
| Build an outbuilding | £9612 |
| Build a mansard loft conversion | £51612 |
| Cost of a loft conversion | £30114 |
| Build a kitchen extension | £41612 |
| Build a hip to gable loft conversion | £41612 |
| Build a granny annexe | £86612 |
| Build a garden office | £9612 |
| Convert a garage | £15612 |
| Build a new garage | £18112 |
| Build a flat roof extension | £21612 |
| Build a dormer loft conversion | £41612 |
| Lay a concrete foundation | £5862 |
| Convert a bungalow loft | £28612 |
| Basement conversion cost | £33137 |