Range from the cheapest Downlights installation £270 (Macs/elec based in NR26) to the dearest Downlights installation £345 (Connect Electrical Installation Services Ltd based in NR25).
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 Holt.