"Your Family's Comfort, Safety, and Health is Our Focus and Concern"
 

As a family business owned and operated by the Cahill family, we have been providing quality repair and installation of heating and air conditioning systems to the homeowners in the northern suburbs for over 30 years.

Specializing in complete indoor comfort, Cahill heating and air offers the experience and expertise to help you choose the right furnace or air conditioner to meet your needs at the best price possible. 

As a Trane comfort specialist, the spirit and heart of our company is all about doing the job right. But it’s so much more that just the quality of our workmanship and attention to service after the sale. Ultimately, it’s all about the comfort, health and safety of your family.

To that end, we deliver “peace of mind” by virtue of everything we do to make the environment of your home as comfortable and healthy as it can possibly be.

You can rely on our unbeatable service after the sale too. Our award winning customer service has led us to earn the Trane Distinguished Dealer Award not once, but six times. See for yourself why Cahill has become the trusted choice for heating and cooling in the Northern Chicago Suburbs.
“We truly value your business and believe it should be earned the old fashioned way...
 

We’ll be there when you need us for all your heating and cooling needs, charge you a fair and honest price and stand behind our work."
"I Guarantee it."
- Dennis Cahill, President
 
 
 
 
"Our Talent And Commitment Sets Us Apart. "

Known for their maintenance and repair expertise, our technicians use their knowledge to successfully repair or replace your heating or air conditioning system.

Licensed, bonded and insured, they are factory trained and can always be counted on to arrive promptly and perform at the highest level of craftsmanship.They are committed to
excellence and understand the trust that you have placed in them to communicate clearly what needs to be done to ensure your families comfort, health and safety.
 

Trane Honors Cahill Heating And Air

 

Ken Niewerth has been designated by Trane as a total comfort specialist. This prestigious award recognizes Cahill Heating and Air for the quality of their workmanship and customer service after the sale.

  

It is only given to the very best of the best in the Trane dealer network.
As a representative of Cahill Heating and Air, you can be sure to place your trust in Ken when you need replacement of your air conditioning or heating system.