A.J. Michaels

Bringing comfort to Baltimore homes since 1978, A.J. Michaels has installed more than 35,000 systems. It does heating, cooling, plumbing and commercial work, and its Home Performance division covers energy audits, duct sealing and improved ventilation. Hybrid and ductless systems are part of the HVAC lineup, along with gas, oil and electric heating, boilers and air handlers. The company is BPI certified and has been involved in EmPOWER Maryland and other state and local programs, so it helps customers find rebates, incentives and special financing. Emergency calls are taken 24/7 with no extra charge for evenings or weekends, and planned service agreements are available. Licensed as Master HVAC #7533, Master Plumber/Gas Fitter #11164 and MHIC #11461. Rated 4.5 from 316 Google reviews, 264 of them five stars.