Cheapest builders to convert your basement in SE19
Range from the cheapest Basement conversion £29400 (M & J Building Construction based in CR7) to the dearest Basement conversion £42000 (Buci builders ltd based in SE27).
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 SE19 by posting a job with HaMuch and we will send it to extension builders in SE19.
Estimates for common extension builder jobs in SE19;
| Job | Estimate |
| Underpinning a house | £17377 |
| Build a two storey extension | £87816 |
| Build a timber frame extension | £25877 |
| Install a swimming pool | £80877 |
| Cost to build a single storey extension | £47542 |
| Cost to build a side return extension | £36118 |
| Install an RSJ | £2077 |
| Build an outbuilding | £9877 |
| Build a mansard loft conversion | £51877 |
| Cost of a loft conversion | £32598 |
| Build a kitchen extension | £41877 |
| Build a hip to gable loft conversion | £41877 |
| Build a granny annexe | £86877 |
| Build a garden office | £9877 |
| Convert a garage | £15877 |
| Build a new garage | £18377 |
| Build a flat roof extension | £21877 |
| Build a dormer loft conversion | £41877 |
| Lay a concrete foundation | £6127 |
| Convert a bungalow loft | £28877 |
| Basement conversion cost | £36118 |