Range from the cheapest installation of smart lighting £64 (Sam electrical based in Nw1) to the dearest installation of smart lighting £124 (F H Heating based in NW8).
Comparing electricians estimates for upgrading to smart lighting 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 install smart lighting in St John by posting a job with HaMuch and we will send it to electricians in St John.