My two HVAC systems needed several repairs to extend the life of the systems. One service recommended by my service man was to have a leak test because the Freon was a little low in one air conditioning unit. However, once he discovered that the unit needed only 1 lb of Freon, he didn’t think there was a leak. He suggested we wait until my next semi-annual inspection to see whether the Freon was low again before testing. That saved me $800, so I really appreciated his honesty. As always, I’m highly satisfied with TE Certified.