Range from the cheapest single storey extension £34000 (C a General builders based in CW10) to the dearest single storey extension £43920 (Holmes Chapel Building Co. based in CW4).
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 CW11 by posting a job with HaMuch and we will send it to extension builders in CW11.
Job | Estimate |
Underpinning a house | £17070 |
Build a two storey extension | £87354 |
Build a timber frame extension | £25570 |
Install a swimming pool | £80570 |
Cost to build a single storey extension | £41392 |
Cost to build a side return extension | £32658 |
Install an RSJ | £1770 |
Build an outbuilding | £9570 |
Build a mansard loft conversion | £51570 |
Cost of a loft conversion | £29715 |
Build a kitchen extension | £41570 |
Build a hip to gable loft conversion | £41570 |
Build a granny annexe | £86570 |
Build a garden office | £9570 |
Convert a garage | £15570 |
Build a new garage | £18070 |
Build a flat roof extension | £21570 |
Build a dormer loft conversion | £41570 |
Lay a concrete foundation | £5820 |
Convert a bungalow loft | £28570 |
Basement conversion cost | £32658 |