HVAC reviews in Chicago, Illinois

Deljo installed a new HVAC system in our home, which required extensive setup. The entire process, from initial estimate to completion, was executed flawlessly. Wesley delivered exceptional workmanship, professionalism, and communication – truly outstanding. His service exceeded expectations, making Deljo one of the top-rated contractors I've worked with.

I've been a loyal customer for years, but my recent experience with your Goldstar program left me feeling let down. Last week, our furnace stopped working and I called to schedule an appointment. The digital assistant told me the earliest available slot was Thursday, which seemed like a long time to wait. When I asked to speak to someone directly, I was informed that I'd been added to the emergency service list - but it didn't feel like there was any real priority benefit to paying this monthly fee. It's clear that Deljo sees the revenue stream as the main advantage, rather than providing genuine priority support. My disappointment is palpable, and I've decided to switch to a different HVAC company.

The technician was highly skilled and efficient, setting up our new system with ease. Their colleague also provided excellent support, explaining everything in detail and ensuring a smooth transition. The team left the workspace clean and tidy afterwards.

Paul fixed our noisy furnace by diagnosing and replacing the blower motor. He explained the problem clearly and walked us through our options. The whole process was efficient and trouble-free. The scheduling part of the process went smoothly as well - we were able to set up an appointment with minimal hassle.

We booked with Deljo quickly and Donny fixed the problem fast - he even ordered the replacement part on the spot. He returned the next day for the installation. Very pleased with his professionalism and friendliness.

Called multiple times before Angel arrived the following day to assess the issue. He provided a range of solutions and got the job done in under two hours. A positive interaction with professional service.

Jon is very polite, friendly, smart, and proper. He nailed the problem right away and explained it well. The company is lucky to have him.

Angel showed genuine care and understanding, being both courteous and informed. The service was executed well, particularly in handling a malfunctioning system on an extremely cold day. I appreciate his expertise and would recommend him for future maintenance needs.

I had an outstanding experience with this home services business. From the initial contact to the follow-up, everything was top-notch. Our technician, Greg, made a great impression - warm, friendly, and extremely professional. He was thorough in his analysis and advice, even when it turned out the job wasn't within their area of expertise. His professionalism and courtesy were exceptional. I'd definitely work with this company again if they can match Greg's level of service.

I used DelJo for home services and had a top-notch experience. The technician who came out was extremely competent and courteous. Prices were reasonable and I was thoroughly pleased with everything.

Izzys expertise and courtesy were impressive during my furnace service appointment. She showed up ahead of schedule, a huge plus. I'm now a loyal customer.

Kudos to Ernesto for showing up and taking care of our furnace and AC. Deljo's service is top-notch, making us happy to entrust them with our HVAC needs for our small business.

I had a solid experience with their service from start to finish. They showed up promptly and got my hot water heater fixed in a timely manner. The staff I spoke with on the phone were courteous, and the person who installed the new unit was efficient and respectful. Overall, it was a positive encounter that led me to suggest them to others.

Installation team showed up right on schedule, finished the job fast, and conducted themselves with complete professionalism from start to finish. I'd definitely suggest Deljo for any heating/cooling setup needs.

Paul did an excellent job on our steam boiler and offered sound advice for upcoming projects. He presented himself professionally and ensured all concerns were resolved.

The technician showed excellent professionalism, providing detailed explanations and being courteous throughout our interaction. He checked the furnace's performance with care before leaving, which is truly appreciated on a freezing day. His courtesy is greatly valued.

We've dealt with plenty of companies that try to undercut everyone else - but Deljo's always been reliable. Their service has held up, even when it comes to Jonathan McLin, who was friendly and kept me in the loop about everything. He handled our furnace with care, no complaints there.

The technician who came to fix the Tekmar Controller did an excellent job. He correctly identified the issue and calmly resolved it. The visit recap email provided clear details of what was done, including photos and helpful instructions. Sam is a personable, thorough, calm-under-pressure professional with top-notch skills. His expertise is well-deserved of his rank as a top service technician.

Drew arrived promptly, being friendly, knowledgeable, and considerate of my space. He thoroughly examined the furnace and clearly explained his findings, even demonstrating what he saw. He was approachable, answering any questions I had and offering valuable guidance.

I scheduled an appointment with Deljo, along with eight other companies. Out of those eight, Mike from Deljo stood out - he was the only one who shook hands when I met him at the door.

Mike inspected my old condenser, which was the only equipment I wanted to replace, and after a closer look, recommended replacing it as well. What struck me was that there wasn't an aggressive sales pitch; Mike seemed genuinely interested in finding the best solution for me.

He ran some numbers and presented three options, explaining each one clearly and patiently multiple times. After our 30-minute conversation, I felt confident that Deljo would be the right choice. Their responsiveness as a company makes me feel secure in my decision.

The installation team arrived on schedule, worked efficiently for about four to six hours, and left everything looking new and tidy. They handled all my requests with a smile. I'm thrilled with the new system - it's been a great investment for my home.

Three weeks later, Mike still checks in on any questions or concerns I have about the new system. That level of support is reassuring. If you're thinking of upgrading your system, I highly recommend Deljo.

Gerardo delivered exceptional service, tackling complex problems in subzero conditions. His attention to detail and expertise brought much-needed relief. What stands out is the reassurance provided by Deljo, offering customers a sense of security during critical situations.