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Professional Boiler Installation in Chicago, IL

Close up of dials and controls of modern boiler system

A broken boiler is the last thing you need in the middle of a cold Chicago winter. Fortunately, Deljo Heating, Cooling & Plumbing’s NATE-certified technicians have kept Chicago families warm for over 100 winters and counting. Professional boiler installation will keep you warm and cozy throughout the season.

Should You Consider Replacing Your Boiler?

Even with consistent boiler maintenance, your boiler won’t last forever. The average life expectancy for a boiler is between 10 and 15 years. Some can last longer, but it is critical to recognize the signs that your boiler may need to be replaced.

Signs You Need Boiler Replacement in Chicago

Your Boiler’s Flame Is Not Blue

Your boiler’s flame should always be blue. This indicates your boiler is operating safely and efficiently. An orange or yellow flame could indicate incomplete combustion. If your boiler’s flame is orange or yellow, this could indicate incomplete combustion. This is not only bad for your boiler, but can also release harmful carbon monoxide. If your boiler flame is not blue, get your family and pets out of the home before calling Deljo immediately.

Your Boiler Is Leaking

A boiler will start leaking once it is nearing the end of its lifespan. Potential root causes of boiler leaks include corrosion, broken seals, and condensate pipe issues. Leaks are bad for your boiler’s performance and can damage your home. Call us for boiler replacement if your boiler is leaking.

Hot and Cold Patches

If some rooms in your house are nice and warm but others stay cold, an inefficient boiler may be responsible.

Increase In Fuel Costs

An unexplained rise in energy bills indicates that your boiler isn’t running as efficiently as it should. This is a clear sign to replace your boiler.

Your Boiler Takes Longer To Heat

Fully functioning boiler systems produce heat within a few seconds. If you have to wait several minutes to start feeling warm air, chances are you need a new boiler.

Your Boiler Needs Repeated Repairs

If you are constantly needing boiler repairs, installing a new boiler will be more cost-effective. Routine boiler maintenance is necessary, but you should not invest in costly repairs for a failing system.

Modern boiler system newly installed

Removing Your Old Boiler

If you decide to install a new boiler, your old one will need to be removed. Fortunately, our technicians are trained to do just that. We will quickly and safely remove your old boiler from your home, careful to avoid mess and property damage. We can either dispose of your boiler ourselves, or we can arrange for secure waste collection from a local authority.

Schedule Chicago Boiler Replacement Today

Interested in installing a new boiler? Call us today at 773-280-8251 to schedule service. Our technicians will help you select the perfect boiler to meet your needs.

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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