I absolutely love them! They are based in Middletown, which is close to where I live. Last summer, my son visited with his wife and kids. It was about 80 degrees inside the house, and 95 degrees outside. My son contacted Summit to fix the air conditioning unit when it got too hot inside, and the repair technician responded almost immediately. He arrived within about twenty minutes, and by 10:30 PM, the repair was finished. I was concerned about how late it was and the kids' sleep being disturbed, so I didn't concern myself with the cost of the repair, but it was definitely worth the price. I contacted Summit again after winter to have them perform routine maintenance around my home, and the receptionist was very nice. I don't want to bother with things like changing the filters in my air conditioning unit, and Shawn, one of the repair technicians, totally understood where I was coming from, and he didn't try to charge me more or up-sale me on anything. Shawn came back in the fall and told me my water heater was getting old, but he was upfront, polite, and helpful about when I would need to have it replaced. I love that I never have to worry about being price gouged or poor response time. They provide amazing service here, and I'm always impressed with how courteous and honest their staff is. I am totally pleased with the contract I now have with them, and I don't foresee any problems with them happening in the future. I've already recommended Summit to others, and I have nothing bad to say about them!