Range from the cheapest single storey extension £10320 (J M Building & Roofing based in S70) to the dearest single storey extension £46640 (3D Construction based in S36).
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 Barns by posting a job with HaMuch and we will send it to extension builders in Barns.
Job | Estimate |
Underpinning a house | £17136 |
Build a two storey extension | £87455 |
Build a timber frame extension | £25636 |
Install a swimming pool | £80636 |
Cost to build a single storey extension | £42730 |
Cost to build a side return extension | £33410 |
Install an RSJ | £1836 |
Build an outbuilding | £9636 |
Build a mansard loft conversion | £51636 |
Cost of a loft conversion | £30342 |
Build a kitchen extension | £41636 |
Build a hip to gable loft conversion | £41636 |
Build a granny annexe | £86636 |
Build a garden office | £9636 |
Convert a garage | £15636 |
Build a new garage | £18136 |
Build a flat roof extension | £21636 |
Build a dormer loft conversion | £41636 |
Lay a concrete foundation | £5886 |
Convert a bungalow loft | £28636 |
Basement conversion cost | £33410 |