Heating & Cooling – HVAC, Air Conditioner & Furnace Repair Near Avondale, Chicago IL

The last thing you want to do is go through the process of an air conditioner installation in Avondale only to realize the unit is too small to properly cool your home. The brutal Chicago heat is right around the corner, so ensuring your air conditioner is working properly is important to your family’s comfort. However, bigger air conditioners aren’t always better. Finding the right size, not too big and not too small, ensures your monthly bill is affordable and your home is a comfortable temperature. At Deljo Heating, Cooling & Plumbing, our professionals will work with you tirelessly to help you pick the right air conditioner for your home.

How Are Air Conditioning Units Measured?

There are many variables that go into recommending a properly sized air conditioner. The only way to know for sure is to have one of Deljo’s comfort consultants to your home for a free consultation. Air conditioning units are measured in tons. The more tons an air conditioning unit has, the more heat it can efficiently remove from your home during the period of an hour. For example, a one-ton unit removes 12,000 British thermal units (BTUs) per hour. Thus, the larger your home, the larger the air conditioner unit you will need to make sure your home stays cool. But if you choose too large of an air conditioner, you’ll waste money on your energy bill every month.

Don’t Depend on Square Footage Alone

Many people use the number of square feet of their home as a guide for how big or small the air conditioning unit should be. For example, if your home is approximately 1,600 square feet, you will likely need a 2 ½ -ton unit for your home to be comfortable. But, square footage shouldn’t be your only guideline when determining air conditioning size. For example, basements are generally a level of your home that tends to be cooler, meaning you likely won’t need your air conditioner to cool that level of your home.

Air Conditioner Installation in Avondale

Once you know the proper size air conditioner to get for your home, contact Deljo Heating, Cooling & Plumbing. From guiding you throughout the selection process to installing your unit, it’s important you pick a company you can trust. The installation process itself is extremely important; our company provides timely, reliable service for all of your heating and cooling needs. To get started, visit us or call us today for a free estimate.

Recent Jobs and Reviews in Avondale, 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.

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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