CGS Brands Serviced
| Furnace and AC | Boilers | Air Filters | Water Systems |
| Armstrong | Burnham | Airscreen | Conditioning |
| Carrier | Dunkirk | Aprilaire | Water-Right |
| Ducane | Milwaukee Thermoflow | General | Heaters |
| Goodman | Munchkin | Honeywell | A.O. Smith |
| Heil | Weil-McLain | Ruud | |
| Payne | State | ||
| Rheem | |||
| Trane | |||
| Whirlpool |
©CGS Heating • N115 W19395 Edison Drive • Germantown, Wisconsin 53022
Phone: 262-253-6900 • Fax: 262-251-0334