Range from the cheapest Downlights installation £310 (A M Robinson Electrical Services based in NN14) to the dearest Downlights installation £338 (AB Kirk Electrical based in NN14).
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 North Northamptonshire.