Heating Installation, Repair and Service

Installation, Repair and Service

Cooling Installation, Repair and Service

Installation, Repair and Service


Check Out What People Are Saying

American Home Heating and Northstar customers are now a part of the Deljo family Questions? Call Us Today! 773-829-4295 or Click Here

When times are uncertain, you can count on Deljo Heating & Cooling.

We are still open for business and are here to serve you safely and reliably. We've implemented various safety precautions to protect our customers and staff during this time by disinfecting all equipment and vehicles, wearing gloves and masks, and practicing social distancing.

Welcome to Deljo Heating and Cooling

When it comes to the comfort inside of your home, you’ll want to do everything in your power to keep you and your family content. Thanks to our team at Deljo Heating and Cooling, doing so has never been easier or more affordable. Our 90-plus year history in the local heating and cooling industry has provided two generations of Chicagoland residents and business owners with high-quality HVAC products and services that have kept them comfortable through the extreme temperatures of Chicago’s winter and summer seasons. Whether you need heating and cooling services in Lincoln Park or simply want a team member to come inspect the current state of your unit, our team is only a phone call away.

Join Our Gold Star Program

Join Our Gold Star Program

Hassle Free Financing

Special Financing

Read Our Customer Reviews

Read Our Customer Reviews

Deljo Heating & Cooling

proudly serving your community since 1922

The Deljo Difference

It’s no secret that there are many different HVAC companies throughout the Chicagoland area, but not all have the same level of training and service that our team does. When you call our team at Deljo Heating and Cooling, expect exceptional service and superior quality every time. 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 on which they can count.

Heating, Air Conditioning & HVAC

Comfort You Can Come Home To

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. Our intensive training and years of experience are your assurance that we will always be here to provide superior HVAC service whenever you need us. Regardless of the team member that is servicing you, you’ll immediately understand the Deljo Difference.

Chicago IL HVAC Experts

Client Testimonials

Always a positive experience with Deljo. Yes, there are cheaper companies around, but I gladly pay a premium to work with a local business that provides good service. In this instance, our furnace (finally) died, and I was willing to wait it out a few days for an appointment on account of work / life conflicts, but I could hear the main office on the phone telling the rep she had to get a sales rep out tonight because it was getting crazy cold and we needed reliable heat. Thanks, Deljo

rate star rate star rate star rate star rate star
~ Jordan McCarthy (12/14/19)

Semi emergency to check my radiant heating unit. Great service within 24 hours, very knowledgeable evaluation of the situation. I have used them for the last two or three years and I am totally satisfied with the quality of the work. Highest recommendation!

rate star rate star rate star rate star rate star
~ Richard Dennis (11/8/19)

Robert came out and was very thoughtful and understanding of the situation. He checked out literally everything imaginable regarding my furnace overheating problem and after doing a thorough cleaning and inspection and some minor tweaking everything is working great! Overall great experience and it cost a fraction of what previous visits to diagnose the same issue cost. Highly recommend!

rate star rate star rate star rate star rate star
~ Keith Wanderski (11/8/19)

These guys are really best in class. They do a fabulous job servicing my furnace and AC and also my Tankless water heater.

rate star rate star rate star rate star rate star
~ Jonathan Davidson (11/4/19)

The technicians are 100% about professionalism and safety. They are knowledgeable in advanced HVAC systems however they don’t try to push replacement on equipment that is still reliable. Definitely would recommend.

rate star rate star rate star rate star rate star
~ Jonathan Zaentz (10/21/19)

Deljo is fantastic. We are Gold Star members and the service pays for itself. They are great communicators and have always treated us with respect when working on our HVAC. They’ve answered all my questions (even the dumb ones), have explained what they do and why, and never push for any unnecessary work. Rick was our tech today and he did a great job.

rate star rate star rate star rate star rate star
~ Nathan Goetz (10/11/19)

What You Can Expect When Hiring Deljo Heating & Cooling

Owning a home comes with so much responsibility, but stressing about your HVAC shouldn’t be top of mind. Finding the right professionals to help ease the burden of keeping up with the vital systems in your residence is important, which is exactly where our team at Deljo comes into play. 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 countless 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 that we offer as well, such as the following.

Maintenance Programs to Save Money

One easy way to save money is by participating in regular maintenance programs that our team provides. HVAC maintenance is ideal to help catch developing problems before they get worse, ultimately saving you time and money in the future. Rest assured that our team will only suggest repairs and services that you genuinely need. Your comfort is our top priority!

wrench icon

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....

wrench icon

We Provide No Hassle

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.

angies list super service award icon

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