Range from the cheapest Downlights installation £240 (A2B Decorating Contractors based in TN37) to the dearest Downlights installation £390 (Bold Electrical Services Ltd based in TN39).
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 TN39.