Range from the cheapest Downlights installation £352 (Vortex Electric Ltd based in PA14) to the dearest Downlights installation £354 (Flektrik Elektrik Ltd based in PA7).
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 Kilmacolm.