Extension builder estimates (based on hourly rates) to build a single storey extension in SE8
Range from the cheapest single storey extension £34000 (Maskan interiors ltd based in E14) to the dearest single storey extension £48880 (Island design & Construction Ltd based in E14).
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 SE8 by posting a job with HaMuch and we will send it to extension builders in SE8.
Estimates for common extension builder jobs in SE8;
| Job | Estimate |
| Underpinning a house | £17359 |
| Build a two storey extension | £87788 |
| Build a timber frame extension | £25859 |
| Install a swimming pool | £80859 |
| Cost to build a single storey extension | £47178 |
| Cost to build a side return extension | £35912 |
| Install an RSJ | £2059 |
| Build an outbuilding | £9859 |
| Build a mansard loft conversion | £51859 |
| Cost of a loft conversion | £32427 |
| Build a kitchen extension | £41859 |
| Build a hip to gable loft conversion | £41859 |
| Build a granny annexe | £86859 |
| Build a garden office | £9859 |
| Convert a garage | £15859 |
| Build a new garage | £18359 |
| Build a flat roof extension | £21859 |
| Build a dormer loft conversion | £41859 |
| Lay a concrete foundation | £6109 |
| Convert a bungalow loft | £28859 |
| Basement conversion cost | £35912 |