Range from the cheapest Downlights installation £220 (Shaz & CO. Builders and Plumbing based in RM16) to the dearest Downlights installation £465 (Clearwater Plumbing & Heating Ltd based in Rm16).
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 DA10.