Sales, Service, Installation — All Brands 24 Hour Service (815) 220-5125 HVAC Financing Request Appointment About Cooling Heating Plumbing Duct Cleaning Air Quality Specials HVAC Financing Contact Review us and receive 10% off any future clean and check, service repair, or new maintenance agreement! Review Us on Google Hear From Our Customers Read More Testimonials Heating and Air Conditioning – Crystal Lake – Official HVAC Serving the North and Northwest Chicago Suburbs for over 65 years… Over the years, we have developed an outstanding reputation for our residential service with home heating and furnaces, cooling and air conditioners, humidifiers, plumbing and duct cleaning. We proudly service McHenry, Crystal Lake, Chicago Suburbs and Southeastern Wisconsin. We are a Carrier Factory Authorized Dealer and our service and installation technicians are factory trained to provide the highest quality of service and they are available 24/7, 365 days a year. We service all brands and stock a huge inventory of parts. Give us a call at (815) 220-5125 and see why we say, “Serving you is what we do best!” Heating and Air Conditioning Services by Official Heating & Cooling Air Conditioners Official Heating & Cooling offers a full selection of AC from premium brands including Carrier air conditioners. New Air Conditioner Sales Request AC Service Cooling Products Furnaces View our extensive selection of furnaces from elite brands like Carrier. New Furnaces Sales Request Furnace Service Heating Products Duct Cleaning Our duct cleaning service can improve the efficiency of your heating and cooling systems and cut down on dust in your home. Request Duct Cleaning Service Air Quality Look through our wide selection of Air Quality products from top brands such as Honeywell and Carrier. Browse Air Quality Products Official Heating & Cooling Services Northern Illinois and Southeast Wisconsin Official Heating & Cooling services the following counties in Northern Illinois: McHenry Lake Kane Dupage Cook Official Heating & Cooling services the following counties in Southeastern Wisconsin: Rock Walworth Kenosha 24 Hour Service 815-220-5125 Request Appointment About Cooling Heating Plumbing Duct Cleaning Air Quality Specials HVAC Financing Contact We repair and service all furnace, heater and air conditioning makes and models including Whirlpool, Heil, Singer, Janitrol, Bryant, Goodman, Johnson, Armstrong, American Standard, Rheem, Rudd, Lennox, GE, General Electric, Amana, Arcoaire, Bard, Carrier, Coleman, Fedders, Tempstar, Trane, York and Payne. We can also provide replacement parts for most furnaces with a bad or cracked heat exchanger as well as any air conditioner with a locked up or burned out compressor. Ask about a FREE second opinion on cracked heat exchangers or defective compressors. Certified Aeroseal Duct Cleaning and Sealing for Illinois and Wisconsin. © 2021 Official Heating and Cooling. All Rights Reserved. Privacy Policy | Sitemap. 18003504822