Cheapest builders to convert your basement in Wales
Range from the cheapest Basement conversion £31200 (DRAGON CONSTRUCTION T/A based in SY25) to the dearest Basement conversion £32100 (SP Coupland Ltd based in SY25).
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 Wales by posting a job with HaMuch and we will send it to extension builders in Wales.
Estimates for common extension builder jobs in Wales;
| Job | Estimate |
| Underpinning a house | £16975 |
| Build a two storey extension | £87212 |
| Build a timber frame extension | £25475 |
| Install a swimming pool | £80475 |
| Cost to build a single storey extension | £39493 |
| Cost to build a side return extension | £31590 |
| Install an RSJ | £1675 |
| Build an outbuilding | £9475 |
| Build a mansard loft conversion | £51475 |
| Cost of a loft conversion | £28825 |
| Build a kitchen extension | £41475 |
| Build a hip to gable loft conversion | £41475 |
| Build a granny annexe | £86475 |
| Build a garden office | £9475 |
| Convert a garage | £15475 |
| Build a new garage | £17975 |
| Build a flat roof extension | £21475 |
| Build a dormer loft conversion | £41475 |
| Lay a concrete foundation | £5725 |
| Convert a bungalow loft | £28475 |
| Basement conversion cost | £31590 |
Rates for other Wales trades
Basement conversion cost in Wales
| Business name | Basement conversion cost |
|---|---|
| DRAGON CONSTRUCTION T/A, , SY25 | £31200 |
| SP Coupland Ltd, Sir Ceredigion, SY25 | £32100 |
| Cherry Build Limited, Llandrindod Wells, LD1 | £31470 |