Range from the cheapest Downlights installation £270 (Mark Harris Electrical Services based in PL2) to the dearest Downlights installation £540 (DCI Field Services Limited based in PL14).
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 PL14.