Range from the cheapest Downlights installation £340 (Dal Rutter Electrical based in ME20) to the dearest Downlights installation £358 (Shine Solar Power Limited based in ME19).
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 West Malling.