Prompt and Efficient Old Town Heating and Cooling Services

Are you a homeowner in Old Town seeking reliable heating and air conditioning services? Look no further! Deljo Heating, Cooling & Plumbing is your go-to HVAC company in the Chicago area. We provide cost-effective, energy-efficient solutions to keep your home comfortable year-round.

Our Comprehensive HVAC Services

As HVAC professionals, we have the expertise to handle a wide range of heating and cooling services, including:

New Installations: If you need a new HVAC system or want to replace your old one, we provide top-notch installation and replacement services. Our team works closely with you to select the best equipment for your sizing requirements, energy usage, and budget.
Meticulous Repairs: Is your system malfunctioning? We handle all types of Old Town heating and air systems, including furnaces, air conditioners, mini splits and boilers. We use industry-leading HVAC repair techniques to get your system working again as quickly as possible.
Regular Maintenance: Regular maintenance is necessary to ensure optimal HVAC performance and longevity. We inspect, clean, and adjust your system, catching problems early so it continues operating at peak efficiency. Your system remains in top condition with less chance of breakdown. Additionally, it will heat and cool your home using less energy, leading to smaller energy bills.

Anytime you schedule a service with us, our team comes ready for any challenge that might arise, efficiently and confidently. We strive to meet and exceed your expectations throughout the appointment.

Why Homeowners Trust Us

For over 100 years, Deljo Heating, Cooling & Plumbing has been the leading name for dependable Chicago HVAC services. We uphold an unwavering commitment to our customer’s specific needs, prioritizing quality, transparency, and customer service.

Here are some other ways we stand out above the rest:

Expertise: Our technicians are highly trained and certified, ensuring you receive the best service possible.
Quality: We use only the highest quality parts and equipment for all our services.
Customer Service: Your satisfaction is our top priority. We’re committed to providing clear communication and professional service from beginning to end.
Affordability: Our prices are competitive, honest, and upfront, so there are no surprises. We also offer special financing options to keep costs affordable.
24/7 Availability: We’re available around the clock for any emergency services.

We’re not just about service; we’re about solutions. From new installations to regular repairs and maintenance, we’re by your side every step of the way. No matter the challenge, we strive to ensure your home’s heating and cooling systems work seamlessly and efficiently.

Get in Touch Today!

Ready to experience the Deljo difference? Call 773-829-4295 to schedule service, or click here for a free quote. We await your call to address any questions, concerns, or emergencies. You can always trust us to bring comfort to your home.

Recent Jobs and Reviews in Old Town, IL

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