Range from the cheapest Downlights installation £282 (Cornwall Electrics based in PL22) to the dearest Downlights installation £340 (Holloway Electrical ltd based in PL24).
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 Lostwithiel.