Extension builder estimates (based on hourly rates) to build a single storey extension in GU9
Range from the cheapest single storey extension £46960 (V B Creative Project Solutions Ltd based in GU52) to the dearest single storey extension £74000 (BZ GARDENS based in GU12).
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 GU9 by posting a job with HaMuch and we will send it to extension builders in GU9.
Estimates for common extension builder jobs in GU9;
| Job | Estimate |
| Underpinning a house | £17445 |
| Build a two storey extension | £87917 |
| Build a timber frame extension | £25945 |
| Install a swimming pool | £80945 |
| Cost to build a single storey extension | £48893 |
| Cost to build a side return extension | £36877 |
| Install an RSJ | £2145 |
| Build an outbuilding | £9945 |
| Build a mansard loft conversion | £51945 |
| Cost of a loft conversion | £33231 |
| Build a kitchen extension | £41945 |
| Build a hip to gable loft conversion | £41945 |
| Build a granny annexe | £86945 |
| Build a garden office | £9945 |
| Convert a garage | £15945 |
| Build a new garage | £18445 |
| Build a flat roof extension | £21945 |
| Build a dormer loft conversion | £41945 |
| Lay a concrete foundation | £6195 |
| Convert a bungalow loft | £28945 |
| Basement conversion cost | £36877 |