Cheapest builders to convert your basement in IP20
Range from the cheapest Basement conversion £28500 (T & J Builders based in NR6) to the dearest Basement conversion £32820 (GT Carpentry & Building based in IP14).
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 IP20 by posting a job with HaMuch and we will send it to extension builders in IP20.
Estimates for common extension builder jobs in IP20;
| Job | Estimate |
| Underpinning a house | £16935 |
| Build a two storey extension | £87153 |
| Build a timber frame extension | £25435 |
| Install a swimming pool | £80435 |
| Cost to build a single storey extension | £38704 |
| Cost to build a side return extension | £31146 |
| Install an RSJ | £1635 |
| Build an outbuilding | £9435 |
| Build a mansard loft conversion | £51435 |
| Cost of a loft conversion | £28455 |
| Build a kitchen extension | £41435 |
| Build a hip to gable loft conversion | £41435 |
| Build a granny annexe | £86435 |
| Build a garden office | £9435 |
| Convert a garage | £15435 |
| Build a new garage | £17935 |
| Build a flat roof extension | £21435 |
| Build a dormer loft conversion | £41435 |
| Lay a concrete foundation | £5685 |
| Convert a bungalow loft | £28435 |
| Basement conversion cost | £31146 |