Marty called ahead to let me know he would be here in 30 minutes, and he was right on time. Marty was very cheerful and friendly from the moment he arrived, and respectful of my house, as he put on shoe booties before entering. Marty performed his work quickly, quietly, and thoroughly. He showed me where my A/C unit was leaking air and suggested ways to take care of the problem. He changed my furnace filters and explained the importance of maintaining the filters on a regular basis to prolong the life of the expensive equipment. Marty wrote up suggestions for recommended service, but did not push them on me. In summary, Marty was extremely professional, considerate of my time, knowledgeable and competent. I would highly recommend Marty to service heating and air equipment!