Range from the cheapest Downlights installation £230 (Ajm services based in M44) to the dearest Downlights installation £440 (GDI Air Conditioning Specialists Ltd based in M28).
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 M28.