Range from the cheapest installation of smart lighting £56 (Linstead Electrics based in NW10) to the dearest installation of smart lighting £174 (Electrical and AV Services based in W3).
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 W3 by posting a job with HaMuch and we will send it to electricians in W3.