Extension builder estimates (based on hourly rates) to build a single storey extension in Calderdale
Range from the cheapest single storey extension £29200 (J.L.Horne Building & Roofing Contractors based in HX6) to the dearest single storey extension £86800 (Diamond Construction (Glazing) based in HX6).
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 Calderdale by posting a job with HaMuch and we will send it to extension builders in Calderdale.
Estimates for common extension builder jobs in Calderdale;
| Job | Estimate |
| Underpinning a house | £17088 |
| Build a two storey extension | £87382 |
| Build a timber frame extension | £25588 |
| Install a swimming pool | £80588 |
| Cost to build a single storey extension | £41757 |
| Cost to build a side return extension | £32863 |
| Install an RSJ | £1788 |
| Build an outbuilding | £9588 |
| Build a mansard loft conversion | £51588 |
| Cost of a loft conversion | £29886 |
| Build a kitchen extension | £41588 |
| Build a hip to gable loft conversion | £41588 |
| Build a granny annexe | £86588 |
| Build a garden office | £9588 |
| Convert a garage | £15588 |
| Build a flat roof extension | £21588 |
| Build a dormer loft conversion | £41588 |
| Lay a concrete foundation | £5838 |
| Convert a bungalow loft | £28588 |
| Basement conversion cost | £32863 |