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

It’s no secret that weather extremes can take a toll on your HVAC system, especially if you experience a breakdown. In the case that your air conditioning unit unexpectedly breaks down, you’ll want to call for a repair as soon as possible. Excessive heat inside your home or your place of business can quickly become unbearable and result in costly damage if it is not swiftly addressed. In the case that your air conditioning unit is experiencing an emergency malfunction, our team at Deljo Heating, Cooling & Plumbing is only a phone call away. We provide air conditioning repair near Ravenswood and surrounding areas to keep families and businesses healthy.

Common AC Malfunctions

While some air conditioner problems are annoying and troublesome, they don’t require immediate service. However, if you experience any of the following, make sure to call our team right away.

  • The AC won’t turn on: If you’ve already checked the power outlet and it’s plugged in and your AC unit won’t turn on, this is a red flag. At the very minimum, your AC unit should be receiving power if it is plugged in properly. Our team can address the problem quickly to kickstart power once again.
  • Lukewarm air coming out of the unit: If your unit is plugged in but it’s pushing out lukewarm air instead of cold air, this is an issue. The last thing you want is warm air to be circulated throughout your home when it’s already hot outside.
  • A premature shutoff: Your unit will shut off prematurely if the equipment begins to overheat. Instead of turning on the power again right away, it’s better to call our professionals for assistance.
  • A strange smell or sound: Odd smells or noises coming from your AC unit is not something to take lightly. Musty, pungent smells and squealing, squeaking noises are red flags; make sure to shut off the unit completely and call Deljo for air conditioning repair near Ravenswood.

We know that facing an unexpected malfunction can be frustrating and worrisome. Rest assured that our team at Deljo Heating, Cooling & Plumbing is here to serve you when you need it the most. We have years of experience with emergency AC repairs and feel confident tackling any problem thrown our way. In the case that you suspect something is wrong with your unit, please contact our team at your earliest convenience. We look forward to serving you!

Recent Jobs and Reviews in Ravenswood, 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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