Extension builder estimates (based on hourly rates) to build a single storey extension in WR9
Range from the cheapest single storey extension £38800 (Mr Fix Property Services based in WR2) to the dearest single storey extension £45200 (Prestige Conversions based in B97).
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 WR9 by posting a job with HaMuch and we will send it to extension builders in WR9.
Estimates for common extension builder jobs in WR9;
| Job | Estimate |
| Underpinning a house | £17054 |
| Build a two storey extension | £87330 |
| Build a timber frame extension | £25554 |
| Install a swimming pool | £80554 |
| Cost to build a single storey extension | £41072 |
| Cost to build a side return extension | £32478 |
| Install an RSJ | £1754 |
| Build an outbuilding | £9554 |
| Build a mansard loft conversion | £51554 |
| Cost of a loft conversion | £29565 |
| Build a kitchen extension | £41554 |
| Build a hip to gable loft conversion | £41554 |
| Build a granny annexe | £86554 |
| Build a garden office | £9554 |
| Convert a garage | £15554 |
| Build a new garage | £18054 |
| Build a flat roof extension | £21554 |
| Build a dormer loft conversion | £41554 |
| Lay a concrete foundation | £5804 |
| Convert a bungalow loft | £28554 |
| Basement conversion cost | £32478 |