Range from the cheapest Downlights installation £334 (Daymz Electrical based in BS36) to the dearest Downlights installation £335 (Randall Electrical Services T/A RES Bristol Ltd based in BS36).
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 BS36.