Our family's home's three HVAC Zone's 12 year old Natural Gas Heating Systems were checked for winter preventive maintenance. During the preventive maintenance, Bryne / Republic Heating and Air quickly identified that our family's home's three HVAC Zone's 12 year old Natural Gas Heating System's vent fan run capacitors were failing and far out of tolerance. As I'm familiar with electronics, Bryne showed me the metered readings of each of the three zone's failing capacitors as well as showed me the marked ratings for each capacitor as well as the listed / marked tolerance codes for each of the three capacitors. Lo and behold, Bryne was very much correct in the failing conditions of each capacitor -- in fact the capacitors were so far out of tolerance, it's surprising the heating vent fans were still working. But, 12 years is quite a long time for them to have not been replaced. So, it was definitely time to replace them. Bryne replaced the capacitors in a timely manner during the same visit and reported that everything else with our three heating zones appeared to be working properly. Additionally, Bryne wrote up three separate and detailed receipts (including make, model, and serial number) for each of the three HVAC Heating Systems that winter maintenance had been performed on (during the same visit) as well as detailed descriptions of the work that had been completed along with the specifications of the capacitor replacements (required / rated capacitance vs. measured), etc. Our family has used Republic Heating and Air in the past and we will continue to do so in the future so, not much more can be said about such a seamless maintenance and repair experience other than the maintenance and repairs were completed with the professionalism and courtesy that always comes to be expected when interacting with Republic Heating and Air. Customer service and satisfaction still appears to be Republic Heating and Air's motivation / goal and they met the mark once again! Thanks again for the great service Republic Heating and Air!