Range from the cheapest single storey extension £34000 (K & H Construction Services Ltd based in TW20) to the dearest single storey extension £38800 (Toni build ltd based in RM10).
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 DG3 by posting a job with HaMuch and we will send it to extension builders in DG3.
Job | Estimate |
Underpinning a house | £16820 |
Build a two storey extension | £86980 |
Build a timber frame extension | £25320 |
Install a swimming pool | £80320 |
Cost to build a single storey extension | £36400 |
Cost to build a side return extension | £29850 |
Install an RSJ | £1520 |
Build an outbuilding | £9320 |
Build a mansard loft conversion | £51320 |
Cost of a loft conversion | £27375 |
Build a kitchen extension | £41320 |
Build a hip to gable loft conversion | £41320 |
Build a granny annexe | £86320 |
Build a garden office | £9320 |
Convert a garage | £15320 |
Build a new garage | £17820 |
Build a flat roof extension | £21320 |
Build a dormer loft conversion | £41320 |
Lay a concrete foundation | £5570 |
Convert a bungalow loft | £28320 |
Basement conversion cost | £29850 |
Business name | Single storey extension cost |
---|---|
K & H Construction Services Ltd, Egham , TW20 | £34000 |
Toni build ltd, Dagenham , RM10 | £38800 |