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 LL25 by posting a job with HaMuch and we will send it to extension builders in LL25.
Job | Estimate |
Underpinning a house | £16882 |
Build a two storey extension | £87074 |
Build a timber frame extension | £25382 |
Install a swimming pool | £80382 |
Cost to build a single storey extension | £37648 |
Cost to build a side return extension | £30552 |
Install an RSJ | £1582 |
Build an outbuilding | £9382 |
Build a mansard loft conversion | £51382 |
Cost of a loft conversion | £27960 |
Build a kitchen extension | £41382 |
Build a hip to gable loft conversion | £41382 |
Build a granny annexe | £86382 |
Build a garden office | £9382 |
Convert a garage | £15382 |
Build a new garage | £17882 |
Build a flat roof extension | £21382 |
Build a dormer loft conversion | £41382 |
Lay a concrete foundation | £5632 |
Convert a bungalow loft | £28382 |
Basement conversion cost | £30552 |
Business name | Single storey extension cost |
---|---|
W F CLAYTON & CO LTD, Bangor, LL57 | £42000 |
Building & Flat Roofing Contractors, Caernarfon, LL54 | £31600 |
Bryn Pritchard Ltd - Building Contractors, Garndolbenmaen, LL51 | £40080 |
UK Leisure Living Ltd, Unit 8, The Old Creamery, Station Road, , LL28 | £37680 |
Balmoral joinery/construction , Gaerwen gwynedd , LL60 | £36880 |