Cheapest builders to convert your basement in CT15
Range from the cheapest Basement conversion £26700 (SG Groundworks based in CT14) to the dearest Basement conversion £42000 (IAN HOTHAM BUILDING & MAINTENANCE based in CT18).
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 CT15 by posting a job with HaMuch and we will send it to extension builders in CT15.
Estimates for common extension builder jobs in CT15;
| Job | Estimate |
| Underpinning a house | £17059 |
| Build a two storey extension | £87339 |
| Build a timber frame extension | £25559 |
| Install a swimming pool | £80559 |
| Cost to build a single storey extension | £41181 |
| Cost to build a side return extension | £32539 |
| Install an RSJ | £1759 |
| Build an outbuilding | £9559 |
| Build a mansard loft conversion | £51559 |
| Cost of a loft conversion | £29616 |
| Build a kitchen extension | £41559 |
| Build a hip to gable loft conversion | £41559 |
| Build a granny annexe | £86559 |
| Build a garden office | £9559 |
| Convert a garage | £15559 |
| Build a new garage | £18059 |
| Build a flat roof extension | £21559 |
| Build a dormer loft conversion | £41559 |
| Lay a concrete foundation | £5809 |
| Convert a bungalow loft | £28559 |
| Basement conversion cost | £32539 |