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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.

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.

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.

I always use Deljo. The entire staff is amazing from intake calls to install. They were fast, professional and gave us a fair price.

Monica OConnor Chicago IL.

Joe was great. We came home to a cold house on a Sunday night and he came out to diagnose the issue right away. Very knowledgeable, very friendly.

Kyle Sant Chicago IL.

We’ve been using Deljo for several years and have had a great experience with them. They’re prompt, reliable, and trustworthy. The technicians (David was the most recent) have been great.

Ari Telisman Chicago IL.

My hot water heater had some leaky pipes due to corroded unions. The repair took longer than I thought due to some unforeseen circumstances. Unfortunately after the repairs the water heater stopped working...

Maria Pradd Chicago IL.

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Our Service Areas

Contact Deljo Heating & Cooling today. We look forward to hearing from you and helping out with all your indoor comfort needs.

Chicago Suburbs

Chicago Neighborhoods