Extension builder estimates (based on hourly rates) to build a single storey extension in Cambridgeshire
Range from the cheapest single storey extension £45200 (James Burch Roofing based in CB23) to the dearest single storey extension £74000 (ALLIED BUILDING ASSOCIATES LTD based in CB22).
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 Cambridgeshire by posting a job with HaMuch and we will send it to extension builders in Cambridgeshire.
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Single storey extension
Estimates for common extension builder jobs in Cambridgeshire;
| Job | Estimate |
| Underpinning a house | £17423 |
| Build a two storey extension | £87885 |
| Build a timber frame extension | £25923 |
| Install a swimming pool | £80923 |
| Cost to build a single storey extension | £48464 |
| Cost to build a side return extension | £36636 |
| Install an RSJ | £2123 |
| Build an outbuilding | £9923 |
| Build a mansard loft conversion | £51923 |
| Cost of a loft conversion | £33030 |
| Build a kitchen extension | £41923 |
| Build a hip to gable loft conversion | £41923 |
| Build a granny annexe | £86923 |
| Build a garden office | £9923 |
| Convert a garage | £15923 |
| Build a new garage | £18423 |
| Build a flat roof extension | £21923 |
| Build a dormer loft conversion | £41923 |
| Lay a concrete foundation | £6173 |
| Convert a bungalow loft | £28923 |
| Basement conversion cost | £36636 |