Range from the cheapest single storey extension £39,000 (DBR Construction Ltd based in NW7) to the dearest single storey extension £71,000 (Greenbuild maintenance sevices ltd based in NW4).
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 Mill Hill by posting a job with HaMuch and we will send it to extension builders in Mill Hill.
