Cheapest builders to convert your basement in M1
Range from the cheapest Basement conversion £28500 (Evolution Roofing & Building based in M27) to the dearest Basement conversion £42000 (CDT BUILDING & ROOFING based in M6).
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 M1 by posting a job with HaMuch and we will send it to extension builders in M1.
Estimates for common extension builder jobs in M1;
| Job | Estimate |
| Underpinning a house | £17181 |
| Build a two storey extension | £87522 |
| Build a timber frame extension | £25681 |
| Install a swimming pool | £80681 |
| Cost to build a single storey extension | £43626 |
| Cost to build a side return extension | £33914 |
| Install an RSJ | £1881 |
| Build an outbuilding | £9681 |
| Build a mansard loft conversion | £51681 |
| Cost of a loft conversion | £30762 |
| Build a kitchen extension | £41681 |
| Build a hip to gable loft conversion | £41681 |
| Build a granny annexe | £86681 |
| Build a garden office | £9681 |
| Convert a garage | £15681 |
| Build a flat roof extension | £21681 |
| Build a dormer loft conversion | £41681 |
| Lay a concrete foundation | £5931 |
| Convert a bungalow loft | £28681 |
| Basement conversion cost | £33914 |