Range from the cheapest Downlights installation £290 (Power and Warmth Limited based in NE40) to the dearest Downlights installation £336 (S-electrical based in NE40).
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 NE40.