I love my mechanic. He has always done a great job for me no matter what vehicle he has worked on. Over the last twenty years, he has been my mechanic. If he ever retires I don’t know what I am going to do. My wife told me that she wanted an all wheel drive vehicle and I kept telling her to get a truck. She just wanted this little Toyota that she saw. The mechanic told me it was a good little car, but he couldn’t work on Toyota products. I told her she couldn’t have the car and she bought it anyway. I feel the same way about my heating, ventilation and air conditioning. I don’t want any company to work on my HVAC system than the ones who did the installation. They are well aware of my system and they know where to go to look at it. I don’t feel like I need to babysit them while they are in my house. I don’t have to take them to the HVAC units. They make sure that they do the job and clean up after. I had an inspection done on my furnace once. The man wasn’t even in the house and he told me he already knew there was a problem. He could hear that the belt was loose. He also heard a small whine in the air conditioning. He fixed both without charging me more than what he charged for the maintenance. Why would I switch to someone I don’t know when I have such wonderful service from people I trust.