Range from the cheapest Downlights installation £270 (SRW Electrical based in CO14) to the dearest Downlights installation £334 (Daniel Williams Electrician based in CO16).
Comparing electricians estimates for Downlights installation 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 for installing downlights by posting a job to electricians in Walton On The Naze.