Range from the cheapest Downlights installation £290 (S. Matthews Electrical Services based in PE19) to the dearest Downlights installation £515 (Energysave Electrical Ltd based in PE29).
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 PE19.