I recently hired Dominion to perform a full PMC on both HVAC systems at my home. I changed contractors becasue I lost confidence in my old vendor. Well, I am glad I switched! On their visit they found and showed me a gas leak in my attic that my old vendor never even bothered to tell me about. The gas piping was so loose, you could move it with your hand. Thanks for finding and correcting my problem Domionion! I have found a new vendor for my service needs.