Range from the cheapest Downlights installation £340 (TDS Electrical Ltd based in SO50) to the dearest Downlights installation £346 (On-Site Electrical Services Ltd based in SO53).
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 Chandler.