Range from the cheapest Downlights installation £270 (West Country Electrical Ltd based in PL21) to the dearest Downlights installation £314 (J N Roper Electrical Contractor based in PL21).
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 TQ10.