Cheapest builders to convert your basement in WD25
Range from the cheapest Basement conversion £28500 (Garston Decor based in WD24) to the dearest Basement conversion £60000 (Design & Build Builders Ltd based in WD18).
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 WD25 by posting a job with HaMuch and we will send it to extension builders in WD25.
Estimates for common extension builder jobs in WD25;
| Job | Estimate |
| Underpinning a house | £17468 |
| Build a two storey extension | £87952 |
| Build a timber frame extension | £25968 |
| Install a swimming pool | £80968 |
| Cost to build a single storey extension | £49354 |
| Cost to build a side return extension | £37136 |
| Install an RSJ | £2168 |
| Build an outbuilding | £9968 |
| Build a mansard loft conversion | £51968 |
| Cost of a loft conversion | £33447 |
| Build a kitchen extension | £41968 |
| Build a hip to gable loft conversion | £41968 |
| Build a granny annexe | £86968 |
| Build a garden office | £9968 |
| Convert a garage | £15968 |
| Build a flat roof extension | £21968 |
| Build a dormer loft conversion | £41968 |
| Lay a concrete foundation | £6218 |
| Convert a bungalow loft | £28968 |
| Basement conversion cost | £37136 |