Cheapest builders to convert your basement in Harlech
Range from the cheapest Basement conversion £27150 (Building & Flat Roofing Contractors based in LL54) to the dearest Basement conversion £28500 (W A Mitchell based in LL54).
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 Harlech by posting a job with HaMuch and we will send it to extension builders in Harlech.
Estimates for common extension builder jobs in Harlech;
| Job | Estimate |
| Underpinning a house | £16633 |
| Build a two storey extension | £86700 |
| Build a timber frame extension | £25133 |
| Install a swimming pool | £80133 |
| Cost to build a single storey extension | £32667 |
| Cost to build a side return extension | £27750 |
| Install an RSJ | £1333 |
| Build an outbuilding | £9133 |
| Build a mansard loft conversion | £51133 |
| Cost of a loft conversion | £25625 |
| Build a kitchen extension | £41133 |
| Build a hip to gable loft conversion | £41133 |
| Build a granny annexe | £86133 |
| Build a garden office | £9133 |
| Convert a garage | £15133 |
| Build a new garage | £17633 |
| Build a flat roof extension | £21133 |
| Build a dormer loft conversion | £41133 |
| Lay a concrete foundation | £5383 |
| Convert a bungalow loft | £28133 |
| Basement conversion cost | £27750 |
Rates for other Harlech trades
Basement conversion cost in Harlech
| Business name | Basement conversion cost |
|---|---|
| WJ Builders, Pwllheli, LL53 | £27600 |
| W A Mitchell, Caernarfon, LL54 | £28500 |
| Building & Flat Roofing Contractors, Caernarfon, LL54 | £27150 |