Air-Tech Air Conditioning & Heating is a Pasadena business that has been serving customers for over 27 years. The business’ service area includes El Monte, Chino, Altadena, Mission Hills, Santa Monica, Diamond Bar, Baldwin Park, Midway City, Studio City, Gardena, Seal Beach, Cypress, Los Alamitos, North Hollywood, San Marino, Rowland Heights, Whittier, Toluca Lake, Cerritos, Alhambra, La Palma, and other areas. The business’ services include air conditioning installation, service, cleaning, and repair, indoor air quality, duct cleaning, ductless mini-split systems, dehumidifiers, attic insulation, thermostats, compressor repair, furnace cleaning, repair, and service, smoke alarms, coil and duct sanitation, residential zoning systems, filter replacement, weather sealing, and indoor air quality. Products include gas furnaces, air conditioners, boilers, heat pumps, evaporator coils, small packaged products, oil furnaces, and geothermal heat pumps. Air-Tech Air Conditioning & Heating has an A+ rating from the Better Business Bureau.