Deljo Heating & Ac Repair

Furnace Repair in Irving Park & Surrounding Areas

The brutal Chicago winters are only survivable with a functional, reliable furnace to keep you and your family warm. With temperatures consistently hovering around and below freezing, having a furnace that you can rely on day in and day out is one of the most important parts of a tolerable Chicago winter.

If you’re on the hunt for top-notch furnace repair in Irving Park and surrounding areas, our team at Deljo Heating, Cooling & Plumbing is your one-stop-shop. We’ve been serving Chicagoland since 1922 and take pride in providing honest, fair and high-quality services to those who need it most. Regardless if you need your furnace repaired, installed or simply maintenance, know that our team is committed to providing you with reliable services at the drop of a hat.

Furnace Repair Services

If your furnace isn’t as powerful as it has been in years past, it may be time to consider a furnace repair. Forcing your furnace to run even if it isn’t functioning properly can result in high energy bills. Thankfully, our furnace repair services are at your disposal 24 hours a day, 7 days a week. The average response time from our technicians is less than 2 hours and we don’t charge any extra for evening, weekend or holiday calls.

Furnace Tune-Ups

With the right maintenance schedule, you can extend the lifespan of your HVAC unit and cut down on unnecessary costs. A simple maintenance plan allows our team to check in on the status of your system and make adjustments as necessary. Not only will this help you save money, but it will provide you with priceless peace of mind.

A New System Altogether

Finally, you may find yourself in need of a completely new furnace this winter. A furnace upgrade can help eliminate the need for furnace repair in Irving Park. If you’re interested in receiving a free, no-obligation quote from our qualified technicians, please get in touch with us!

Commercial Services, Too

Not only do we service homes in and around Irving Park, but we also provide our services to commercial companies, too. If you’re a business owner and need our professional assistance, we are happy to help.

Contact Deljo Heating, Cooling & Plumbing Today

Regardless of the residential or commercial HVAC services that you need, our team at Deljo will gladly take care of all of your needs! Reach out to us at 773-829-4295.

Our Service Areas

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

Client Testimonials

Read the opinions of our satisfied customers.

Call Now 773-280-8251 Schedule Your Service

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

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

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

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

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

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

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

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

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

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

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

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

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

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