Extension builder estimates (based on hourly rates) to build a single storey extension in North Watford
Range from the cheapest single storey extension £47120 (Progressive Design London based in WD24) to the dearest single storey extension £90000 (Design & Build Builders Ltd based in WD18).
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 North Watford by posting a job with HaMuch and we will send it to extension builders in North Watford.
Estimates for common extension builder jobs in North Watford;
| Job | Estimate |
| Underpinning a house | £17486 |
| Build a two storey extension | £87979 |
| Build a timber frame extension | £25986 |
| Install a swimming pool | £80986 |
| Cost to build a single storey extension | £49718 |
| Cost to build a side return extension | £37342 |
| Install an RSJ | £2186 |
| Build an outbuilding | £9986 |
| Build a mansard loft conversion | £51986 |
| Cost of a loft conversion | £33618 |
| Build a kitchen extension | £41986 |
| Build a hip to gable loft conversion | £41986 |
| Build a granny annexe | £86986 |
| Build a garden office | £9986 |
| Convert a garage | £15986 |
| Build a new garage | £18486 |
| Build a flat roof extension | £21986 |
| Build a dormer loft conversion | £41986 |
| Lay a concrete foundation | £6236 |
| Convert a bungalow loft | £28986 |
| Basement conversion cost | £37342 |