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Reliable HVAC in Wrigleyville, Chicago

Living anywhere in Chicago means dealing with harsh winters. When you’re at home lounging on the couch, the last thing you want to feel is cold air blowing from your furnace. At Dejo, we recognize the importance of working on an HVAC system. We promptly address any HVAC issues using skilled and experienced technicians, ensuring we do the job right the first time.

With over a century in the business, Deljo Heating, Cooling & Plumbing has been a trusted provider of top-quality HVAC services in Chicagoland. Our commitment to customer satisfaction has earned us a stellar reputation built on trust and loyal client relationships. Here at Deljo, you are our top priority.

We offer various HVAC services, specializing in maintenance, repairs, installations, and emergency calls. You can always expect reliable work focused on your needs, budget, and sizing requirements.

A young woman shivering at home with a broken furnace.

HVAC Maintenance

Regular maintenance is the key to extending the lifespan of your heating and cooling system. By scheduling routine maintenance, your system will operate more effectively and efficiently, keeping your home comfortable and your energy bills in check. Ideally, schedule maintenance every spring and fall to ensure peak performance during extreme temperature seasons.

Heating & Cooling Repair

Deljo Heating, Cooling & Plumbing boasts expertise in repairing many HVAC systems, from heat pumps and ductless systems to boilers and traditional AC units. Our specially trained technicians will swiftly diagnose and professionally repair your heater or air conditioner.

HVAC Installation

Even with meticulous care, heating and cooling systems eventually wear out. Therefore, the next step is to get a new one, like a state-of-the-art model to reduce your energy bills. Whether it’s a replacement for an old unit or an upgrade, our team provides furnace and air conditioning recommendations tailored to your home, needs, and budget.

24/7 Emergency HVAC

Our commitment to customer care extends beyond regular hours. HVAC systems can fail day or night when you least expect it. Don’t worry, we’re just a phone call away. Deljo Heating, Cooling & Plumbing understands the urgency during extreme weather conditions, ensuring a swift response to prevent risks to your health and well-being.

Schedule an Appointment Today!

If you need help with HVAC in Chicago, our Wrigleyville team has over a century of experience in heating and air conditioning services. Experience the Deljo Difference when your HVAC system needs immediate attention. We promise to exceed your expectations or your money back. Call 773-829-4295 to schedule an appointment.

Recent Jobs and Reviews in Wrigleyville, IL

Client Testimonials

Read the opinions of our satisfied customers.

5 stars

This was my first time as a Deljo customer, and I was very pleased. My technician, Giovanni, was very thorough and diligent. He serviced my furnace and identified a faulty sensor that was causing the unit to shut itself down. Deljo ordered the part, and Giovanni replaced it a few days later. Overall, the team at Deljo was great. The dispatcher kept me informed about Giovanni’s arrival time, and the supervisor assisted Giovanni when he was diagnosing the problem with the furnace. I highly recommend Deljo.

Paul D. 10/15/2026

5 stars

I’ve used Deljo for over 10 years now and they always do a good job. Izzy was the technician for this visit and he did an excellent job with my winter maintenance on my multiple units in the household. He also addressed an issue while cleaning the furnace blower wheel. His communication was clear and concise with what he planned to do to address the issue quickly. He was confident and I had 0 concerns or questions. Great job Izzy!

Jeff S. 10/14/2026

5 stars

Paul was great! Arrived on time and completed maintenance on my humidifier, tankless water heater, and two furnaces. All work was performed under my Gold Star maintenance program, so all maintenance charges were covered. Paul did provide a few proposals for additional services on furnace & tankless water heater, but those were emailed to me for further consideration. Paul was friendly, knowledgeable, and answered all my questions.

Jack N. 10/12/2026

5 stars

Gabe did an excellent job with our annual service visit. He arrived in the early part of our service window, was friendly and knowledgeable, and got the work done in a very reasonable amount of time. I have great confidence in Deljo, and am a long-time customer.

Ruth C. 10/9/2026

5 stars

I’ve been using Deljo for 20 years for HVAC but now venture into enlisting their plumbing services. Bashar was very courteous, efficient & informative, and I’d definitely request him again for the next plumbing job. Great experience!

Christopher R. 10/2/2026

5 stars

Working with Deljo is always a good experience, and today’s appointment with Izzy was no different. He was able to come early which actually worked better with our schedules, but called me ahead of time to make sure that was okay. He was friendly and knowledgeable when he explained the work he had done during his visit and our options for fixes. He was also able to schedule a quote appointment for us while he was still here. We would highly recommend working with Izzy and the Deljo team!

Lauren H.  9/25/2026

5 stars

Drew performed the seasonal maintenance on my AC. It needed some repairs and updates and he was able to fix everything at the same appointment. He also noticed issues with the hot water heater and we were able to get ahead of that, as well.

Emily W. 9/11/2026

5 stars

I would leave six out of five stars if I could! My technician Jorge went above and beyond on his service. There was buildup in the rental property’s toilet from the previous tenant. One maintenance person did a surface level job of cleaning but did not fully remove the obstruction. Jorge went above and beyond and came to a solution and even explained the perpetual problems older toilet models can cause. Moving forward with this insight, I can perform my own upkeep the previous tenant did not. Thank you kindly!

Kayla K.  9/15/2026

5 stars

We just had our new boiler installed by Jonathan and Carlos. First rate work! They arrived on time, removed the old boiler, installed the new unit, and explained the features. Both guys were pleasant. Bring on the cold this winter! We are ready thanks to the team from Deljo.

Edward B.  6/26/2026

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

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