Extension builder estimates (based on hourly rates) to build a single storey extension in SY21
Range from the cheapest single storey extension £35600 (SDW CONSTRUCTION LTD based in SY15) to the dearest single storey extension £43760 (Your Home Made Ltd based in SY11).
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 SY21 by posting a job with HaMuch and we will send it to extension builders in SY21.
Estimates for common extension builder jobs in SY21;
| Job | Estimate |
| Underpinning a house | £16969 |
| Build a two storey extension | £87203 |
| Build a timber frame extension | £25469 |
| Install a swimming pool | £80469 |
| Cost to build a single storey extension | £39371 |
| Cost to build a side return extension | £31521 |
| Install an RSJ | £1669 |
| Build an outbuilding | £9469 |
| Build a mansard loft conversion | £51469 |
| Cost of a loft conversion | £28768 |
| Build a kitchen extension | £41469 |
| Build a hip to gable loft conversion | £41469 |
| Build a granny annexe | £86469 |
| Build a garden office | £9469 |
| Convert a garage | £15469 |
| Build a new garage | £17969 |
| Build a flat roof extension | £21469 |
| Build a dormer loft conversion | £41469 |
| Lay a concrete foundation | £5719 |
| Convert a bungalow loft | £28469 |
| Basement conversion cost | £31521 |
Rates for other SY21 trades
Extension Builders in SY21
| Business name | Single storey extension cost |
|---|---|
| SDW CONSTRUCTION LTD, , SY15 | £35600 |
| Richard Sherratt Builders Ltd, Shrewsbury , SY5 | £35600 |
| EVABUILD LIMITED, , SY16 | £37200 |
| J S CONSTRUCTION, , SY10 | £41680 |
| Kevin Davies Building Contractors, Oswestry , SY10 | £40400 |
| Your Home Made Ltd, Shropshire, SY11 | £43760 |
| Fistral ltd, Unit F4, Plot 2, Bank Top Ind Est, St Martin?s, SY10 | £41360 |