Cheapest builders to convert your basement in N1
Range from the cheapest Basement conversion £33000 (DR BUILDERS based in N1) to the dearest Basement conversion £36870 (Upper Class Builders based in N1).
Comparing extension builders estimates for a Basement conversion 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 for the cost to convert a basement in N1 by posting a job with HaMuch and we will send it to extension builders in N1.
Estimates for common extension builder jobs in N1;
| Job | Estimate |
| Underpinning a house | £17384 |
| Build a two storey extension | £87826 |
| Build a timber frame extension | £25884 |
| Install a swimming pool | £80884 |
| Cost to build a single storey extension | £47677 |
| Cost to build a side return extension | £36193 |
| Install an RSJ | £2084 |
| Build an outbuilding | £9884 |
| Build a mansard loft conversion | £51884 |
| Cost of a loft conversion | £32661 |
| Build a kitchen extension | £41884 |
| Build a hip to gable loft conversion | £41884 |
| Build a granny annexe | £86884 |
| Build a garden office | £9884 |
| Convert a garage | £15884 |
| Build a new garage | £18384 |
| Build a flat roof extension | £21884 |
| Build a dormer loft conversion | £41884 |
| Lay a concrete foundation | £6134 |
| Convert a bungalow loft | £28884 |
| Basement conversion cost | £36193 |