Extension builder estimates (based on hourly rates) to build a single storey extension in Colwyn Bay
Range from the cheapest single storey extension £35600 (S A Davies Sustainable Construction Limited based in CH7) 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 Colwyn Bay by posting a job with HaMuch and we will send it to extension builders in Colwyn Bay.
Estimates for common extension builder jobs in Colwyn Bay;
| Job | Estimate |
| Underpinning a house | £16907 |
| Build a two storey extension | £87111 |
| Build a timber frame extension | £25407 |
| Install a swimming pool | £80407 |
| Cost to build a single storey extension | £38140 |
| Cost to build a side return extension | £30829 |
| Install an RSJ | £1607 |
| Build an outbuilding | £9407 |
| Build a mansard loft conversion | £51407 |
| Cost of a loft conversion | £28191 |
| Build a kitchen extension | £41407 |
| Build a hip to gable loft conversion | £41407 |
| Build a granny annexe | £86407 |
| Build a garden office | £9407 |
| Convert a garage | £15407 |
| Build a new garage | £17907 |
| Build a flat roof extension | £21407 |
| Build a dormer loft conversion | £41407 |
| Lay a concrete foundation | £5657 |
| Convert a bungalow loft | £28407 |
| Basement conversion cost | £30829 |
Rates for other Colwyn Bay trades
Single storey extension cost in Colwyn Bay
| Business name | Single storey extension cost |
|---|---|
| UK Leisure Living Ltd, Unit 8, The Old Creamery, Station Road, , LL28 | £37680 |
| S ROBERTS ROOFING, , LL22 | £37680 |
| Richardson Joinery & Builders, , LL22 | £38800 |
| Octagon Construction Ltd, Rhyl, LL18 | £37200 |
| Brothers Construction, , LL18 | £39440 |
| S A Davies Sustainable Construction Limited, Caerwys, CH7 | £35600 |
| W F CLAYTON & CO LTD, Bangor, LL57 | £42000 |
| Hughes Construction, , LL57 | £36720 |