ZEROZAP

Certification by Underwriters Laboratories (UL) of all systems installed by Priestley Lightning Protection was included in pricing for the first 22 years in business, then the steadily increasing cost suddenly quadrupled and a certification expiration feature was added. Certification was offered for the next ten years, with no takers, and is no longer offered. Some insurance companies offer a small discount on homeowner's insurance for having lightning rods, but then usually require multiple certifications.