Extension builder estimates (based on hourly rates) to build a single storey extension in SY19
Range from the cheapest single storey extension £35600 (SDW CONSTRUCTION LTD based in SY15) to the dearest single storey extension £40400 (Kevin Davies Building Contractors based in SY10).
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 SY19 by posting a job with HaMuch and we will send it to extension builders in SY19.
Estimates for common extension builder jobs in SY19;
| Job | Estimate |
| Underpinning a house | £16887 |
| Build a two storey extension | £87080 |
| Build a timber frame extension | £25387 |
| Install a swimming pool | £80387 |
| Cost to build a single storey extension | £37733 |
| Cost to build a side return extension | £30600 |
| Install an RSJ | £1587 |
| Build an outbuilding | £9387 |
| Build a mansard loft conversion | £51387 |
| Cost of a loft conversion | £28000 |
| Build a kitchen extension | £41387 |
| Build a hip to gable loft conversion | £41387 |
| Build a granny annexe | £86387 |
| Build a garden office | £9387 |
| Convert a garage | £15387 |
| Build a new garage | £17887 |
| Build a flat roof extension | £21387 |
| Build a dormer loft conversion | £41387 |
| Lay a concrete foundation | £5637 |
| Convert a bungalow loft | £28387 |
| Basement conversion cost | £30600 |
Rates for other SY19 trades
Extension Builders in SY19
| Business name | Single storey extension cost |
|---|---|
| EVABUILD LIMITED, , SY16 | £37200 |
| SDW CONSTRUCTION LTD, , SY15 | £35600 |
| Kevin Davies Building Contractors, Oswestry , SY10 | £40400 |