Cheapest builders to convert your basement in LS21
Range from the cheapest Basement conversion £28500 (Aire Valley Builders & Roofing Contractor based in BD16) to the dearest Basement conversion £33810 (Sd interiors based in LS16).
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 LS21 by posting a job with HaMuch and we will send it to extension builders in LS21.
Estimates for common extension builder jobs in LS21;
| Job | Estimate |
| Underpinning a house | £17093 |
| Build a two storey extension | £87389 |
| Build a timber frame extension | £25593 |
| Install a swimming pool | £80593 |
| Cost to build a single storey extension | £41853 |
| Cost to build a side return extension | £32917 |
| Install an RSJ | £1793 |
| Build an outbuilding | £9593 |
| Build a mansard loft conversion | £51593 |
| Cost of a loft conversion | £29931 |
| Build a kitchen extension | £41593 |
| Build a hip to gable loft conversion | £41593 |
| Build a granny annexe | £86593 |
| Build a garden office | £9593 |
| Convert a garage | £15593 |
| Build a new garage | £18093 |
| Build a flat roof extension | £21593 |
| Build a dormer loft conversion | £41593 |
| Lay a concrete foundation | £5843 |
| Convert a bungalow loft | £28593 |
| Basement conversion cost | £32917 |