Barrett Heating & Cooling Inc is an Illinois residential heating & cooling service, repair, replacement, and maintenance company for your air conditioning, furnace, geothermal, ductless mini split, zoning, tankless water heater, and heat pump needs located in Madison County. Barrett Heating & Cooling Inc. will send you only the best plumber or technician to fix your plumbing problem, air conditioner repair, gas or propane (LP) furnace & heater repairs as well as all air conditioner replacements, furnace replacements, boiler replacements, and tankless hot water heater installations in Alhambra IL, Alton IL, Bethalto IL, Brighton IL, Bunker Hill IL, Cahokia IL, Caseyville IL, Centreville IL, Collinsville IL, Dorchester IL, Dorsey IL, East Alton IL, Edwardsville IL, Elsah IL, Fairview Heights IL, Fidelity IL, Glen Carbon IL, Godfrey IL, Grafton IL, Hamel IL, Jerseyville IL, Kane IL, Kemper IL, Livingston IL, Marine IL, Maryville IL, McClusky IL, Medora IL, Mt Clare IL, Newbern IL, Osterville IL, Piasa IL, Rosedale IL, Roxana IL, Royal Lakes IL, Sayreville IL, Shipman IL, Staunton IL, Troy IL, Wilsonville IL, Wood River IL, and Woodburn IL. To set-up a repair service estimate or replacement estimate, call 618-465-3731 or 618-465-3731. Barrett Heating and Cooling is an authorized factory dealer of many brands and services all furnace, AC, humidifier, filter, thermostat and water heater brands including Carrier, Bryant, Payne, Trane, Lennox, Rheem, Ruud, Amana, Crown, Frigidaire, Gibson, Goodman, Lochinvar, Maytag, Weil McLain, A.O. Smith, Kohler, American Standard, GeoExcel, General, Aprilaire, Honeywell, Daikin, Mitsubishi, Fujitsu, White Rodgers, Dynamic and Skuttle.