Extension builder estimates (based on hourly rates) to build a single storey extension in OL9
Range from the cheapest single storey extension £29200 (Aquatec Builder based in OL10) to the dearest single storey extension £43120 (AJD Developments based in M24).
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 OL9 by posting a job with HaMuch and we will send it to extension builders in OL9.
Recent Jobs
17/02/2024
Extension Builder near Ol9 8he
Single storey extension
Estimates for common extension builder jobs in OL9;
| Job | Estimate |
| Underpinning a house | £17049 |
| Build a two storey extension | £87324 |
| Build a timber frame extension | £25549 |
| Install a swimming pool | £80549 |
| Cost to build a single storey extension | £40989 |
| Cost to build a side return extension | £32431 |
| Install an RSJ | £1749 |
| Build an outbuilding | £9549 |
| Build a mansard loft conversion | £51549 |
| Cost of a loft conversion | £29526 |
| Build a kitchen extension | £41549 |
| Build a hip to gable loft conversion | £41549 |
| Build a granny annexe | £86549 |
| Build a garden office | £9549 |
| Convert a garage | £15549 |
| Build a new garage | £18049 |
| Build a flat roof extension | £21549 |
| Build a dormer loft conversion | £41549 |
| Lay a concrete foundation | £5799 |
| Convert a bungalow loft | £28549 |
| Basement conversion cost | £32431 |