Range from the cheapest Downlights installation £240 (Paul Weller based in B90) to the dearest Downlights installation £590 (Universal Heating Limited based in B28).
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 Kings Heath.