Cheapest builders to convert your basement in SW15
Range from the cheapest Basement conversion £35610 (AVIB City Construction Ltd based in SW19) to the dearest Basement conversion £36870 (Lala Brothers Construction Ltd based in SW15).
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 SW15 by posting a job with HaMuch and we will send it to extension builders in SW15.
Estimates for common extension builder jobs in SW15;
| Job | Estimate |
| Underpinning a house | £17380 |
| Build a two storey extension | £87820 |
| Build a timber frame extension | £25880 |
| Install a swimming pool | £80880 |
| Cost to build a single storey extension | £47594 |
| Cost to build a side return extension | £36146 |
| Install an RSJ | £2080 |
| Build an outbuilding | £9880 |
| Build a mansard loft conversion | £51880 |
| Cost of a loft conversion | £32622 |
| Build a kitchen extension | £41880 |
| Build a hip to gable loft conversion | £41880 |
| Build a granny annexe | £86880 |
| Build a garden office | £9880 |
| Convert a garage | £15880 |
| Build a flat roof extension | £21880 |
| Build a dormer loft conversion | £41880 |
| Lay a concrete foundation | £6130 |
| Convert a bungalow loft | £28880 |
| Basement conversion cost | £36146 |