About Us

About Merts

Home and business owners in the areas of Steger, Illinois and nearby Northwestern Indiana have benefitted from the quality services provided by Merts Heating & Air Conditioning since 1952. To further expand our ability to serve our customers, Merts acquired Kleine Heating & Air Conditioning, allowing us to have a permanent presence in the Crown Point, Indiana area. With the owners and many Merts employees living in Northwestern Indiana, the expansion was an extension of the commitment to the area already in place. Whenever you need HVAC repair, replacement or maintenance needs (including 24-hour emergency service), the residents of Illinois and Indiana can count on the professionals at Merts Heating & Air Conditioning. 

The Merts Pledge

We take pride in our legacy built on the foundation of providing the best heating and cooling equipment, sales, and service with integrity and professionalism. Our reputation among our peers and customers demonstrates we deliver what we promise. 

Merts has been recognized by the Better Business Bureau for excellence, and our Select Contractor providers have been awarded with NATE and BPI certifications. Our track record is proven and we promise to earn your trust. Merts Heating & Air Conditioning pledges to deliver:

Call Merts today at (833) 52-MERTS (833-526-3787). Let us take care of all of your heating and cooling needs. Merts works for you!

Kleine Heating & Air Conditioning Under New Ownership


After serving the great people of Crown Point, IN for decades, Kleine Heating & Air Conditioning has been acquired by Merts Heating & Air Conditioning. 

Even though there can be a fierce rivalry between the Hoosiers and the Illini, our only goal is to provide top quality HVAC sales and service to our clients.


The realization of a long-time goal

When Ken and Mary Kleine decided to retire, they chose Merts to take care of their loyal clients going forward. Merts has a long history (1952) of providing superlative customer service. Originally based in Steger, IL Merts has looked for a long time to expand operations in Northwest Indiana. In some ways it felt inevitable because one of the company’s owners lives in Indiana, along with several Merts employees.


The Merts Pledge

Now, former Kleine customers in Indiana will receive the same great service Merts has provided for decades. It doesn’t matter if you are a fan of “Da Bears and Da Bulls” or of the Colts and the Pacers, whenever you need HVAC repair, replacement, or maintenance needs (including 24-hour emergency service), residents of both states can count on the professionals at Merts Heating & Air Conditioning.

Illinois Location:

3102 Louis Sherman Dr
Steger, IL 60475

Indiana Location:

528 Sheridan Street
Crown Point, IN 46307