TDH Mechanical, Inc. is an HVAC company located in St Charles , Illinois. TDH Mechanical employs only the best HVAC technicians for your AC and furnace repairs or replacements. So, when you ask to find "A good Air Conditioner company near me", you've come to the right place. To get a quote on your next ac repair or replacement, call (630) 406-9082. TDH Mechanical, Inc. services all HVAC equipment brands including Trane, Mitsubishi, AO Smith, Rinnai, Bradford White, Rheem, Daikin, Fujitsu, Navien, Lochinvar, Crown, Weil McLain, Waterfurnace, Aprilaire, Honeywell, Dynamic, Skuttle, General, Carrier, Coleman, Bryant, Payne, Frigidaire, York, Lennox, Maytag, Goodman, Ruud, Amana, Daikin, Armstrong, American Standard, Nest, and Ecobee.