Cheapest builders to convert your basement in Outer London
Range from the cheapest Basement conversion £33000 (Total Home Refurbishments Ltd based in SE13) to the dearest Basement conversion £36870 (Island design & Construction Ltd based in E14).
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 Outer London by posting a job with HaMuch and we will send it to extension builders in Outer London.
Estimates for common extension builder jobs in Outer London;
| Job | Estimate |
| Underpinning a house | £17387 |
| Build a two storey extension | £87830 |
| Build a timber frame extension | £25887 |
| Install a swimming pool | £80887 |
| Cost to build a single storey extension | £47734 |
| Cost to build a side return extension | £36226 |
| Install an RSJ | £2087 |
| Build an outbuilding | £9887 |
| Build a mansard loft conversion | £51887 |
| Cost of a loft conversion | £32688 |
| Build a kitchen extension | £41887 |
| Build a hip to gable loft conversion | £41887 |
| Build a granny annexe | £86887 |
| Build a garden office | £9887 |
| Convert a garage | £15887 |
| Build a new garage | £18387 |
| Build a flat roof extension | £21887 |
| Build a dormer loft conversion | £41887 |
| Lay a concrete foundation | £6137 |
| Convert a bungalow loft | £28887 |
| Basement conversion cost | £36226 |