AirTech Services Inc.

Air-tech Services, Inc. is a local business that provides personalized service. We have been providing exceptional heating and cooling services to residential and commercial customers throughout all of McHenry County and surrounding regions in Illinois since 1988.

In that time our loyal customers have come to count on us for the highest levels of customer service and integrity.Air-tech - Compare our pricing We install and service quality heating and cooling systems. We repair all HVAC brands, including Trane, Carrier, Lennox, Heil, Bryant, Tempstar, Ruud, Rheem and Goodman, just to name a few! We dispatch out of Cary and Marengo for immediate service.

Immediate response time!

We understand how important it is that your system works properly. If you need immediate service, call and we will respond IMMEDIATELY.

Honest Service - No Sales Gimmicks

At Air-tech Services, we understand that your heating and air conditioning system is extremely important. Residential and commercial customers that have experienced a system failure know how uncomfortable and frustrating it can be. During times of extreme heat or cold such a failure can actually be a health threat. Business owners know that a comfortable environment is essential to the productivity of their business, and the comfort of their employees and clients.

We offer equipment and service that suits your individual need. No two installations are alike so we don't offer cookie-cutter solutions. We look at the job requirements and offer solutions that are best for the long run, without sacrificing system performance, and at the best cost. We love our customers and work hard to develop a long term relationship. 

Our pricing and service rates are straightforward and uncomplicated offering honest value without hidden charges. We offer preventative maintenance services designed to address your unique needs with rates that are among the most competitive in the industry. Call us for a system check up and get the peace of mind that comes from knowing your heating and air conditioning system is working as effectively and efficiently as possible, ready for the next season.


We specialize in repairing your problem. If you need a new AC we offer
very fair and competitive pricing options.


Why Choose Air-tech Services?

We offer:

  • Free estimates for your needs.
  • Pre-season check-ups and cleaning.
  • Preventative maintenance schedules.
  • We service ALL makes.
  • We install complete air-handling solutions; heating, cooling, humidifiers, and filtration.
  • We install and service water heaters.
  • We are a family business in your community.

... and we probably installed or serviced your neighbor.


We look forward to having you as a client!


Cary (847)639-5336

Marengo (815)568-5377



We install Energy Star Certified equipment

We install environmentally friendly products for a cleaner future...

We install environmentally friendly Puron refrigerant

Serving McHenry County since 1988

Air-tech installs Aprilaire Products

Air-tech installs Heil HVAC systems

Air-tech installs Honeywell HVAC Products

Air-tech installs Trane HVAC systems

Air-tech is a certified Trane Comfort Specialist