Extension builder estimates (based on hourly rates) to build a single storey extension in NG1
Range from the cheapest single storey extension £26000 (HUSKINSON CONSTR SRVCS LTD based in NG16) to the dearest single storey extension £50000 (Constructiv Target based in NG8).
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 NG1 by posting a job with HaMuch and we will send it to extension builders in NG1.
Estimates for common extension builder jobs in NG1;
| 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 | £42365 |
| Cost to build a side return extension | £33205 |
| Install an RSJ | £1818 |
| Build an outbuilding | £9618 |
| Build a mansard loft conversion | £51618 |
| Cost of a loft conversion | £30171 |
| 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 | £33205 |