Range from the cheapest single storey extension £30000 (J s building & maintenance services limited based in B26) to the dearest single storey extension £66000 (TG Building Services & Son based in B71).
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 B4 by posting a job with HaMuch and we will send it to extension builders in B4.
Job | Estimate |
Underpinning a house | £17101 |
Build a two storey extension | £87402 |
Build a timber frame extension | £25601 |
Install a swimming pool | £80601 |
Cost to build a single storey extension | £42026 |
Cost to build a side return extension | £33014 |
Install an RSJ | £1801 |
Build an outbuilding | £9601 |
Build a mansard loft conversion | £51601 |
Cost of a loft conversion | £30012 |
Build a kitchen extension | £41601 |
Build a hip to gable loft conversion | £41601 |
Build a granny annexe | £86601 |
Build a garden office | £9601 |
Convert a garage | £15601 |
Build a new garage | £18101 |
Build a flat roof extension | £21601 |
Build a dormer loft conversion | £41601 |
Lay a concrete foundation | £5851 |
Convert a bungalow loft | £28601 |
Basement conversion cost | £33014 |