Range from the cheapest single storey extension £46960 (Andrew Penny Construction based in EC1N) to the dearest single storey extension £74000 (Q Lofts and Extensions based in EC1R).
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 Finsbury by posting a job with HaMuch and we will send it to extension builders in Finsbury.
Job | Estimate |
Underpinning a house | £17448 |
Build a two storey extension | £87922 |
Build a timber frame extension | £25948 |
Install a swimming pool | £80948 |
Cost to build a single storey extension | £48957 |
Cost to build a side return extension | £36913 |
Install an RSJ | £2148 |
Build an outbuilding | £9948 |
Build a mansard loft conversion | £51948 |
Cost of a loft conversion | £33261 |
Build a kitchen extension | £41948 |
Build a hip to gable loft conversion | £41948 |
Build a granny annexe | £86948 |
Build a garden office | £9948 |
Convert a garage | £15948 |
Build a new garage | £18448 |
Build a flat roof extension | £21948 |
Build a dormer loft conversion | £41948 |
Lay a concrete foundation | £6198 |
Convert a bungalow loft | £28948 |
Basement conversion cost | £36913 |