Extension builder estimates (based on hourly rates) to build a single storey extension in Retford
Range from the cheapest single storey extension £41040 (Willow Building & Resin Drives Ltd based in M33) to the dearest single storey extension £43440 (Starmore Building and Joinery based in M1).
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 Retford by posting a job with HaMuch and we will send it to extension builders in Retford.
Estimates for common extension builder jobs in Retford;
| Job | Estimate |
| Underpinning a house | £17118 |
| Build a two storey extension | £87427 |
| Build a timber frame extension | £25618 |
| Install a swimming pool | £80618 |
| Cost to build a single storey extension | £42358 |
| Cost to build a side return extension | £33202 |
| Install an RSJ | £1818 |
| Build an outbuilding | £9618 |
| Build a mansard loft conversion | £51618 |
| Cost of a loft conversion | £30168 |
| Build a kitchen extension | £41618 |
| Build a hip to gable loft conversion | £41618 |
| Build a granny annexe | £86618 |
| Build a garden office | £9618 |
| Convert a garage | £15618 |
| Build a new garage | £18118 |
| Build a flat roof extension | £21618 |
| Build a dormer loft conversion | £41618 |
| Lay a concrete foundation | £5868 |
| Convert a bungalow loft | £28618 |
| Basement conversion cost | £33202 |