Range from the cheapest single storey extension £38800 (Inspiral Construction based in KT16) to the dearest single storey extension £49200 (Luxuria Property Ltd based in GU25).
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 Runnymede by posting a job with HaMuch and we will send it to extension builders in Runnymede.
Job | Estimate |
Underpinning a house | £17390 |
Build a two storey extension | £87835 |
Build a timber frame extension | £25890 |
Install a swimming pool | £80890 |
Cost to build a single storey extension | £47798 |
Cost to build a side return extension | £36262 |
Install an RSJ | £2090 |
Build an outbuilding | £9890 |
Build a mansard loft conversion | £51890 |
Cost of a loft conversion | £32718 |
Build a kitchen extension | £41890 |
Build a hip to gable loft conversion | £41890 |
Build a granny annexe | £86890 |
Build a garden office | £9890 |
Convert a garage | £15890 |
Build a new garage | £18390 |
Build a flat roof extension | £21890 |
Build a dormer loft conversion | £41890 |
Lay a concrete foundation | £6140 |
Convert a bungalow loft | £28890 |
Basement conversion cost | £36262 |