Range from the cheapest Downlights installation £256 (Livingstone Electronic Security : LES based in BT63) to the dearest Downlights installation £292 (JC Electrics (NI) Ltd based in BT31).
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 Banbridge.