Extension builder estimates (based on hourly rates) to build a single storey extension in WF3
Range from the cheapest single storey extension £29200 (T & B Builders based in WF17) to the dearest single storey extension £43600 (Bee brand designs based in wf12).
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 WF3 by posting a job with HaMuch and we will send it to extension builders in WF3.
Estimates for common extension builder jobs in WF3;
| Job | Estimate |
| Underpinning a house | £17086 |
| Build a two storey extension | £87378 |
| Build a timber frame extension | £25586 |
| Install a swimming pool | £80586 |
| Cost to build a single storey extension | £41712 |
| Cost to build a side return extension | £32838 |
| Install an RSJ | £1786 |
| Build an outbuilding | £9586 |
| Build a mansard loft conversion | £51586 |
| Cost of a loft conversion | £29865 |
| Build a kitchen extension | £41586 |
| Build a hip to gable loft conversion | £41586 |
| Build a granny annexe | £86586 |
| Build a garden office | £9586 |
| Convert a garage | £15586 |
| Build a new garage | £18086 |
| Build a flat roof extension | £21586 |
| Build a dormer loft conversion | £41586 |
| Lay a concrete foundation | £5836 |
| Convert a bungalow loft | £28586 |
| Basement conversion cost | £32838 |