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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, duct cleaning, duct sealing, and indoor air quality. Official Heating & Cooling proudly services Crystal Lake, McHenry, Chicago Suburbs. We are a Carrier Factory Authorized Dealer and our HVAC 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!”


Carrier Presidents Award 6 Time Recipient - HVAC Company Near Me Official Heating & Cooling BBB Complaint Free AwardCarrier Heat Pumps Official HVAC Crystal Lake


Heating and Air Conditioning Services by Official Heating & Cooling

air conditioner crystal lake il - air conditioning repairAir Conditioners

Official Heating & Cooling offers a full selection of AC units from premium brands including Carrier air conditioners.

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View our extensive selection of furnaces from elite brands like Carrier.



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Heat Pumps and Mini-Split Systems

View our extensive selection of furnaces from elite brands like Carrier.

Air Duct Cleaning - duct cleaning crystal lake ilDuct Cleaning

Our duct cleaning service can improve the efficiency of your heating and cooling systems and cut down on dust in your home.

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Air Quality

Look through our wide selection of Air Quality products from top brands such as Honeywell and Carrier.