HVAC Contractor Arlington Heights, Buffalo Grove, Mundelein & Evanston, IL

Delivering timely
and professional service
with satisfied customers since 1950

Schedule Appointment

Our Services

Call Gleason Heating and Air Conditioning

Why Choose Gleason

Get to know our guarantees and find out what our customers say about us

Have used this company for over 25 years. Have been very pleased with their service. Their technicians have been great. Very professional, knowledgeable and courteous. We have also found them to be trustworthy.

- Al Noster

The water line to our whole house humidifier cracked and water started flooding our basement. Candy immediately diverted a service call technician to us. We were able to turn off the water while the tech made his way to our home. He proposed a solution to bring our unit to code and ordered the parts to fix the situation the very next day.

- M Burger

Satisfaction Guarantee

Everything we do from mechanical systems, to installation, to keeping our promises to you… are guaranteed. If, for any reason, you are unhappy with our service – let us know and we promise to make it right – without excuses.

Learn More

Performance Guarantee

If, for any reason, you are unhappy with our service – let us know and we promise to make it right – without excuses.

Learn More

Need Our Help? Call 847.566.6009 or Schedule Appointment

What Makes Gleason Different

Our main advantages! See what makes Gleason stand out from the competition

Too Hot or Too Cold? We Can Help!

Established in 1950, we've been helping residential and commercial customers in the Wauconda area with their HVAC problems for over 71 years!

But our experience is just one reason to choose us. We also employ factory-trained technicians that are among the best in the industry. This lets you rest assured that the work will be done right the first time. We also offer extensive contractor services and work with you at all stages of the HVAC equipment life cycle. At Gleason Heating and Air Conditioning, we expect to continue our relationship long after your new equipment is installed.

Residential Services

Count on us for your commercial and industrial HVAC needs

Gleason Heating and Air Conditioning performs installation, repair and maintenance on light commercial equipment — packaged units typically used in smaller commercial buildings and offices from one to three stories tall.

Gleason Heating and Air Conditioning is experienced with the array of systems typically used to heat and cool light commercial spaces. Our skilled HVAC technicians can repair and maintain your existing air conditioning system and can evaluate the dynamics of your structure and space to make effective, efficient equipment recommendations when new equipment is needed.

Commercial Services
logo logo

Gleason Service Areas

Find Your Service Area

  • Algonquin
  • Antioch
  • Arlington Heights
  • Barrington
  • Buffalo Grove
  • Carol Stream
  • Carpentersville
  • Cary
  • Crystal Lake
  • and more

Since 1950, Gleason Heating and Air Conditioning has proudly served a wide range of communities throughout North Illinois. Whether you’re dealing with dirty air ducts in Mundelein or your furnace in Wauconda is on the fritz, it’s our mission to help you return to being comfortable in your home or business as soon as possible.

Not sure if our team services your area? Give us a call and discover how we can help.


1246 Karl Ct
Wauconda, IL 60084

Get Directions


Monday - Friday
8 AM to 4:30 PM

Contact Us