Cheapest builders to convert your basement in Blackburn
Range from the cheapest Basement conversion £25800 (J & G Construction based in BB4) to the dearest Basement conversion £87000 (Ridgesmart Roofing Ltd based in BB2).
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 Blackburn by posting a job with HaMuch and we will send it to extension builders in Blackburn.
Estimates for common extension builder jobs in Blackburn;
| Job | Estimate |
| Underpinning a house | £17182 |
| Build a two storey extension | £87523 |
| Build a timber frame extension | £25682 |
| Install a swimming pool | £80682 |
| Cost to build a single storey extension | £43638 |
| Cost to build a side return extension | £33922 |
| Install an RSJ | £1882 |
| Build an outbuilding | £9682 |
| Build a mansard loft conversion | £51682 |
| Cost of a loft conversion | £30768 |
| Build a kitchen extension | £41682 |
| Build a hip to gable loft conversion | £41682 |
| Build a granny annexe | £86682 |
| Build a garden office | £9682 |
| Convert a garage | £15682 |
| Build a flat roof extension | £21682 |
| Build a dormer loft conversion | £41682 |
| Lay a concrete foundation | £5932 |
| Convert a bungalow loft | £28682 |
| Basement conversion cost | £33922 |