Range from the cheapest Downlights installation £240 (BOILER SYSTEMS GAS & OIL SERVICES based in GU8) to the dearest Downlights installation £440 (Task electrical based in GU4).
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 GU8.