Heating or plumbing emergency? We’ve got you covered!

Highland Park Heating and Cooling

You rely on your home’s HVAC system to keep you and your family comfortable year-round. Chicago weather can be severe, and you want to be prepared at all times for whatever the temperatures may bring. Part of that preparedness is having an HVAC company you know you can count on.

Here at Deljo Heating and Cooling, our priority is your comfort. That’s why we provide full service for all types of heating and air conditioning systems, complete with emergency service. For over 100 years, we have been honing our skills and earning our customers’ trust to ensure our neighbors are safe and comfortable in their homes. We are proud of the company we have built on solid core values and customer satisfaction.

HVAC technician measuring voltage on AC unit

Comprehensive HVAC Services in Highland Park, IL

Our company includes experienced, NATE-certified technicians who are put through rigorous training we developed to ensure every customer receives the same consistent high-quality service with every visit. Whether you need AC service, furnace repair service, or general HVAC repair in Highland Park, IL, we promise to deliver the products and services you expect and deserve

Our most popular services include maintenance, repair, replacement, installation, and upgrades for the following:

We are proud to partner with reputable brands including Carrier and Ecobee. As a Mitsubishi Diamond Dealer, we guarantee a superior skill set, dedication to customer service, and sophisticated solutions to even the most challenging HVAC concerns.

HVAC technician mounting ductless mini-split unit

100 Years of HVAC – Highland Park, IL

Not only do we provide specialized training for our technicians to ensure they provide top-tier service consistently, but we also continuously meet national standards for performance. Year after year, we strive to meet or exceed the high expectations of ethical business practices.

For over a century, we have been known for stellar service and relationships with our customers. We know first-hand the importance of earning and maintaining the trust of our customers, and we are dedicated to going above and beyond when it comes to setting the bar.

We maintain all required licensing, insurance, warranty specifications, and certifications to ensure we stay up to date on best practices while we provide our customers with the highest quality of service and products possible. We invite you to experience the Deljo Difference any time you need Highland Park HVAC services, including emergency heating and cooling services 24 hours a day, 7 days a week.

Client Testimonials

Read the opinions of our satisfied customers.

5 stars

Deljo’s heating and cooling team was awesome to work with. As a first-time homeowner, I really appreciated how clearly they explained everything and answered all my questions. From the quote to the install and follow-up, the service was top-notch. Highly recommend!

Lindsey A. Chicago, IL

5 stars

Matt did an amazing job. He serviced our home and our rental property. He gave us options to help our systems run more efficiently. He also told us about Deljo’s new plumbing inspection which was very affordable. He is great!

Jordan R. Chicago, IL

5 stars

We had a problem with our Humidifier and called Deljo. Jesus came out to help and was amazing. He was extremely knowledgeable, detail oriented, and super courteous. Amazing customer experience!

Jeff C. Chicago, IL

5 stars

Jordan and Jesus were extremely helpful and knowledgeable! We would 100% work with them and have them back. They were both very professional and efficiently fixed our heating system.

Emily L. Chicago, IL

5 stars

Shout out to Ernesto for coming out and servicing our furnace and air con. Deljo provides a great service and glad to trust them with our HVAC for our small business.

Lauren H. Chicago, IL

phone and letter icon
Questions? We Can Help! Contact Us Today!