Extension builder estimates (based on hourly rates) to build a single storey extension in SS11
Range from the cheapest single storey extension £34000 (Royal Roofing & building contractors based in SS12) to the dearest single storey extension £74000 (City build.com based in Ss5).
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 SS11 by posting a job with HaMuch and we will send it to extension builders in SS11.
Estimates for common extension builder jobs in SS11;
| Job | Estimate |
| Underpinning a house | £17316 |
| Build a two storey extension | £87724 |
| Build a timber frame extension | £25816 |
| Install a swimming pool | £80816 |
| Cost to build a single storey extension | £46314 |
| Cost to build a side return extension | £35426 |
| Install an RSJ | £2016 |
| Build an outbuilding | £9816 |
| Build a mansard loft conversion | £51816 |
| Cost of a loft conversion | £32022 |
| Build a kitchen extension | £41816 |
| Build a hip to gable loft conversion | £41816 |
| Build a granny annexe | £86816 |
| Build a garden office | £9816 |
| Convert a garage | £15816 |
| Build a new garage | £18316 |
| Build a flat roof extension | £21816 |
| Build a dormer loft conversion | £41816 |
| Lay a concrete foundation | £6066 |
| Convert a bungalow loft | £28816 |
| Basement conversion cost | £35426 |