Cheapest builders to convert your basement in KT15
Range from the cheapest Basement conversion £31200 (GJ Roofing based in KT14) to the dearest Basement conversion £37050 (JDM (D&B) Ltd based in Kt14).
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 KT15 by posting a job with HaMuch and we will send it to extension builders in KT15.
Estimates for common extension builder jobs in KT15;
| Job | Estimate |
| Underpinning a house | £17361 |
| Build a two storey extension | £87792 |
| Build a timber frame extension | £25861 |
| Install a swimming pool | £80861 |
| Cost to build a single storey extension | £47229 |
| Cost to build a side return extension | £35941 |
| Install an RSJ | £2061 |
| Build an outbuilding | £9861 |
| Build a mansard loft conversion | £51861 |
| Cost of a loft conversion | £32451 |
| Build a kitchen extension | £41861 |
| Build a hip to gable loft conversion | £41861 |
| Build a granny annexe | £86861 |
| Build a garden office | £9861 |
| Convert a garage | £15861 |
| Build a flat roof extension | £21861 |
| Build a dormer loft conversion | £41861 |
| Lay a concrete foundation | £6111 |
| Convert a bungalow loft | £28861 |
| Basement conversion cost | £35941 |