Cheapest builders to convert your basement in Llangefni
Range from the cheapest Basement conversion £27150 (Building & Flat Roofing Contractors based in LL54) to the dearest Basement conversion £33000 (W F CLAYTON & CO LTD based in LL57).
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 Llangefni by posting a job with HaMuch and we will send it to extension builders in Llangefni.
Estimates for common extension builder jobs in Llangefni;
| Job | Estimate |
| Underpinning a house | £16809 |
| Build a two storey extension | £86963 |
| Build a timber frame extension | £25309 |
| Install a swimming pool | £80309 |
| Cost to build a single storey extension | £36171 |
| Cost to build a side return extension | £29721 |
| Install an RSJ | £1509 |
| Build an outbuilding | £9309 |
| Build a mansard loft conversion | £51309 |
| Cost of a loft conversion | £27268 |
| Build a kitchen extension | £41309 |
| Build a hip to gable loft conversion | £41309 |
| Build a granny annexe | £86309 |
| Build a garden office | £9309 |
| Convert a garage | £15309 |
| Build a new garage | £17809 |
| Build a flat roof extension | £21309 |
| Build a dormer loft conversion | £41309 |
| Lay a concrete foundation | £5559 |
| Convert a bungalow loft | £28309 |
| Basement conversion cost | £29721 |
Rates for other Llangefni trades
Basement conversion cost in Llangefni
| Business name | Basement conversion cost |
|---|---|
| Balmoral joinery/construction , Gaerwen gwynedd , LL60 | £30120 |
| Glyndwr Roofing & Building Services, , LL65 | £29850 |
| Property Maintenance Solutions, Benllech , LL74 | £29400 |
| Hughes Construction, , LL57 | £30030 |
| W F CLAYTON & CO LTD, Bangor, LL57 | £33000 |
| Building & Flat Roofing Contractors, Caernarfon, LL54 | £27150 |
| W A Mitchell, Caernarfon, LL54 | £28500 |