Range from the cheapest single storey extension £32400 (RM contractors based in Nr20) to the dearest single storey extension £47600 (Halls Property Services Ltd - Independent Network Installer based in NR11).
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 NR21 by posting a job with HaMuch and we will send it to extension builders in NR21.
Job | Estimate |
Underpinning a house | £16980 |
Build a two storey extension | £87220 |
Build a timber frame extension | £25480 |
Install a swimming pool | £80480 |
Cost to build a single storey extension | £39600 |
Cost to build a side return extension | £31650 |
Install an RSJ | £1680 |
Build an outbuilding | £9480 |
Build a mansard loft conversion | £51480 |
Cost of a loft conversion | £28875 |
Build a kitchen extension | £41480 |
Build a hip to gable loft conversion | £41480 |
Build a granny annexe | £86480 |
Build a garden office | £9480 |
Convert a garage | £15480 |
Build a new garage | £17980 |
Build a flat roof extension | £21480 |
Build a dormer loft conversion | £41480 |
Lay a concrete foundation | £5730 |
Convert a bungalow loft | £28480 |
Basement conversion cost | £31650 |