Extension builder estimates (based on hourly rates) to build a single storey extension in G31
Range from the cheapest single storey extension £38800 (GMCB based in G71) to the dearest single storey extension £58000 (GK STONEMASONS based in G44).
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 G31 by posting a job with HaMuch and we will send it to extension builders in G31.
Estimates for common extension builder jobs in G31;
| Job | Estimate |
| Underpinning a house | £17288 |
| Build a two storey extension | £87682 |
| Build a timber frame extension | £25788 |
| Install a swimming pool | £80788 |
| Cost to build a single storey extension | £45763 |
| Cost to build a side return extension | £35117 |
| Install an RSJ | £1988 |
| Build an outbuilding | £9788 |
| Build a mansard loft conversion | £51788 |
| Cost of a loft conversion | £31764 |
| Build a kitchen extension | £41788 |
| Build a hip to gable loft conversion | £41788 |
| Build a granny annexe | £86788 |
| Build a garden office | £9788 |
| Convert a garage | £15788 |
| Build a flat roof extension | £21788 |
| Build a dormer loft conversion | £41788 |
| Lay a concrete foundation | £6038 |
| Convert a bungalow loft | £28788 |
| Basement conversion cost | £35117 |