Cheapest builders to convert your basement in SP11
Range from the cheapest Basement conversion £31200 (CBS 2002 Ltd based in RG25) to the dearest Basement conversion £37500 (HEAT TECH based in SP11).
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 SP11 by posting a job with HaMuch and we will send it to extension builders in SP11.
Estimates for common extension builder jobs in SP11;
| Job | Estimate |
| Underpinning a house | £17290 |
| Build a two storey extension | £87685 |
| Build a timber frame extension | £25790 |
| Install a swimming pool | £80790 |
| Cost to build a single storey extension | £45795 |
| Cost to build a side return extension | £35135 |
| Install an RSJ | £1990 |
| Build an outbuilding | £9790 |
| Build a mansard loft conversion | £51790 |
| Cost of a loft conversion | £31779 |
| Build a kitchen extension | £41790 |
| Build a hip to gable loft conversion | £41790 |
| Build a granny annexe | £86790 |
| Build a garden office | £9790 |
| Convert a garage | £15790 |
| Build a new garage | £18290 |
| Build a flat roof extension | £21790 |
| Build a dormer loft conversion | £41790 |
| Lay a concrete foundation | £6040 |
| Convert a bungalow loft | £28790 |
| Basement conversion cost | £35135 |