Extension builder estimates (based on hourly rates) to build a single storey extension in E11
Range from the cheapest single storey extension £31920 (Perfectstart Ltd based in E12) to the dearest single storey extension £90000 (Gardening Life Ltd based in E10).
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 E11 by posting a job with HaMuch and we will send it to extension builders in E11.
Estimates for common extension builder jobs in E11;
| Job | Estimate |
| Underpinning a house | £17411 |
| Build a two storey extension | £87867 |
| Build a timber frame extension | £25911 |
| Install a swimming pool | £80911 |
| Cost to build a single storey extension | £48227 |
| Cost to build a side return extension | £36503 |
| Install an RSJ | £2111 |
| Build an outbuilding | £9911 |
| Build a mansard loft conversion | £51911 |
| Cost of a loft conversion | £32919 |
| Build a kitchen extension | £41911 |
| Build a hip to gable loft conversion | £41911 |
| Build a granny annexe | £86911 |
| Build a garden office | £9911 |
| Convert a garage | £15911 |
| Build a new garage | £18411 |
| Build a flat roof extension | £21911 |
| Build a dormer loft conversion | £41911 |
| Lay a concrete foundation | £6161 |
| Convert a bungalow loft | £28911 |
| Basement conversion cost | £36503 |