Extension builder estimates (based on hourly rates) to build a single storey extension in LL54
Range from the cheapest single storey extension £31600 (Building & Flat Roofing Contractors based in LL54) to the dearest single storey extension £42000 (W F CLAYTON & CO LTD based in LL57).
Comparing extension builders estimates for fitting a downstairs toilet 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 to build a single storey extension in LL54 by posting a job with HaMuch and we will send it to extension builders in LL54.
Estimates for common extension builder jobs in LL54;
| Job | Estimate |
| Underpinning a house | £16806 |
| Build a two storey extension | £86959 |
| Build a timber frame extension | £25306 |
| Install a swimming pool | £80306 |
| Cost to build a single storey extension | £36120 |
| Cost to build a side return extension | £29693 |
| Install an RSJ | £1506 |
| Build an outbuilding | £9306 |
| Build a mansard loft conversion | £51306 |
| Cost of a loft conversion | £27244 |
| Build a kitchen extension | £41306 |
| Build a hip to gable loft conversion | £41306 |
| Build a granny annexe | £86306 |
| Build a garden office | £9306 |
| Convert a garage | £15306 |
| Build a new garage | £17806 |
| Build a flat roof extension | £21306 |
| Build a dormer loft conversion | £41306 |
| Lay a concrete foundation | £5556 |
| Convert a bungalow loft | £28306 |
| Basement conversion cost | £29693 |
Rates for other LL54 trades
Extension Builders in LL54
| Business name | Single storey extension cost |
|---|---|
| Building & Flat Roofing Contractors, Caernarfon, LL54 | £31600 |
| W A Mitchell, Caernarfon, LL54 | £34000 |
| Bryn Pritchard Ltd - Building Contractors, Garndolbenmaen, LL51 | £40080 |
| Balmoral joinery/construction , Gaerwen gwynedd , LL60 | £36880 |
| WJ Builders, Pwllheli, LL53 | £32400 |
| W F CLAYTON & CO LTD, Bangor, LL57 | £42000 |
| Glyndwr Roofing & Building Services, , LL65 | £36400 |
| Property Maintenance Solutions, Benllech , LL74 | £35600 |