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Heating
Installation, Repair and Service

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Cooling
Installation, Repair and Service

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Reviews
Check Out What People Are Saying

Questions? Call Us Today! 773-829-4295 or click here 

Welcome to Deljo

Our 90-plus year history in the local heating and cooling industry has provided two generations of Chicagoland residents and business owners with the high-quality HVAC products and services that have kept them comfortable through the extreme temperatures of our winter and summer seasons.

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No hassle financing

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Read Our Customer Reviews

Deljo Heating and Cooling

proudly serving your community since 1922

Heating, Air Conditioning & HVAC

Expect exceptional service and superior quality. By consistently meeting rigorous national standards for performance, Deljo Heating & Cooling is distinguished as a Carrier Factory Authorized Dealer. We continue to reach high expectations for ethical business practices year after year.

By maintaining all required local licenses, complete insurance & liability coverage, and fulfillment of warranty specifications, we provide Chicago area home and business owners a team of support they can count on.

Chicago IL HVAC Experts

Deljo Heating & Cooling is also a Mitsubishi Diamond Dealer, guaranteeing a superior skill set, dedicated customer service and sophisticated solutions to the most challenging home temperature concerns.

Our technicians participate in extensive training and education at every level of service, from new product sales to continued customer care, at a Mitsubishi Electric-approved training center. Through intensive training and years of firsthand experience, our HVAC....

Client Testimonials

From the first emergency response team to the installation of a new boiler, I felt confidence in the crew and recommend them highly. Chris, Robert, Patrick, David, and Brandon took the time to explain
everything and made a difficult couple of days much less stressful.


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~ A.M. Chicago, IL (11/15/18)

From the first emergency response team to the installation of a new boiler, I felt confidence in the crew and recommend them highly. Chris, Robert, Patrick, David, and Brandon took the time to explain
everything and made a difficult couple of days much less stressful.


rate star rate star rate star rate star rate star
~ A.M. Chicago, IL (11/15/18)

What You Can Expect When Hiring Deljo Heating & Cooling

Owning a home comes with so much responsibility. Finding the right professionals to help ease the burden of keeping up with the vital systems in your residence is
important. When it comes to keeping your heating and cooling unit in good working order, you need to call on Deljo Heating & Cooling for help.
We have been in the HVAC repair business for many years and will have no problem extending a helping hand when you need it.
Hiring us will allow you to take advantage of a number of benefits.

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Fast and Efficient Air Conditioning
and Heating Repair

For most homeowners, any HVAC repair needs to be done in a timely manner. The longer you have to wait for AC repair, furnace repair, etc., the more difficult you will find it to maintain a comfortable temperature in your residence. Our experienced technicians will find the problem and complete....

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We Provide No Hassle
Financing

In some instances, your existing unit will have to be replaced due to wear or age. Coming up with a lump sum of money to get a new unit can be difficult. We can provide you with the no hassle financing you need. We offer convenient monthly payments and the flexible financing terms you are looking for.

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Winners of the Angie's List Super Service Award from 2004 to 2017!