Customer Reviews

2/24/17 – Gershon
Mike Martinez was polite, friendly, and did what we wanted in a competent manner.

2/17/17 – Anne
Alberto is courteous and very skilled and knowledgable. We are pleased to have him as our service man.

2/4/17 – Mario
John was GREAT! He answered all my questions & gave me some ideals to take care of some problems. He went as far as following up by having some one set an appointment for possible corrections.

2/2/17 – Heather
Javier was fantastic. Called ahead and gave us heads up for arrival time and extensively took care of our HVAC. Highly recommended!

2/2/17 – Francisco
Pleased with the prompt response to our repair needs. They are always very professional on the phone be it a secretary or a technician.

2/1/17 – Robert
Tony showed up right on time and did an excellent job. He was very good at explaining what needed to be done.

1/26/17 – Ronna
Mike was an excellent technician, as usual. He performed his job efficiently and answered all my questions.

1/11/17 – Jared
Dave Estes was extremely professional, nice, and did a great job. He worked fast and answered all of my crazy questions. I would recommend Deljo to all of my friends and family. Thanks!

1/10/17 – Kim
Chris is a great tech. Very thorough; explains issues and options well.

1/2/17 – Kevin
Deljo just replaced my furnace, Steven and Alex did a phenomenal job, extremely happy with my new top of the line furnace!

12/15/16 – Suzy
Deljo was not the cheapest option for me, but I decided to go with them for two reasons. 1) Deljo has always been honest and they don’t try to sell me parts I don’t need when they come to service my equipment. I trust them. 2) The product they provided had a better rating on Consumer Reports.

12/15/16 – John
Excellent service from Deljo, as I have come to expect. Brandon and Casey were most helpful in installing two new furnaces, which seem to be working well in this deep freeze weather. Brandon was patient and clear in explaining about new thermostats and filters.

11/22/16 – Eric
Javier was thorough, efficient, cordial and honest. Fixed our furnace with a simple workaround, explaining that although it didn’t address the root cause of a busted intake pipe where it met the alley, it was equally effective and much more affordable (no extra charge) than replacing it.

10/26/16 – KT
Professional, competent, thorough, timely, easy to work with — Jay, David, Brandon, Mike, and Beth were all so friendly and responsive to our needs. I especially appreciate the time taken to explain choices and to get the job done right. We’d been limping along with “the guy in the white van” for years. Deljo is the real deal.

10/26/16 – Kathy
Could not be more pleased with the installation and communications between myself and Deljo. The entire TEAM was in sync. I have 3 other properties in Illinois which means I have been involved with several installations of various kinds and can truthfully say that in this case you DO GET WHAT YOU PAY FOR and more… professionalism and courtesy!

10/18/16 – Rose
Tony, Charlie, Chris, Bob….all these people were fantastic. And so very very prompt! They made sure things were working properly and wouldn’t quit until they were. I’m very glad I found Deljo.

10/4/16 – Robin
The technician was on time and very polite. He also explained things clearly

10/1/16 – Scott
The service person who showed up was professional, nice and thorough in his work.

9/30/16 – Cindy
Steve, Alex and Bob were amazing! We had two quotes for a complete new furnace and AC unit, replacing a 60 year old furnace. Deljo was slightly more expensive but you do get what you pay for. Their knowledge, expertise and helpful attitude exceeded our expectations. Such nice people, not only do you not mind having them in your house to do the work, I would have loved to have them for dinner! Honestly, home improvement can be so difficult and Steve, Alex and Bob made it easy! Robinson also did an excellent job cleaning our ducts. I would not hesitate for a second to refer you. You did what you said you would do and with big smiles on your faces. Thanks for making our first major project in our new home a success!

9/30/16 – Lowell
The Best. When I was in the HVAC business 40 years ago I knew what good Techs where. The two that installed my system were great , Kudos to DelJO

9/14/16 – Larry
Charlie was very patient explaining the routine maintenance on the boiler and the thermostat. Prompt and quick.

9/14/16 – Vincent
On time! Friendly/Courteous/Knowledge/Efficient! They were fast but not rushed. Took the time to answer all my questions. Reinforced my decision to go with the monthly program. Easy tips to maintain heating and cooling systems.

9/9/16 – Tim
Mike called to let me know know he was on site and followed up afterward to tell me all was well with my HVAC.

9/4/16 – Howard
Deljo recently replaced the HVAC in my condo. Dave Urso, the sales rep was prompt, communicated clearly and gave me the info necessary to buy the correct equipment. He solved a problem with the prior installation that caused an impediment to opening the door to the deck so that now, there’s no issue and the deck look is improved. Steve and David, the install team were terrific. They protected the areas within the apartment from damage and debris, did a very professional job on the installation and clearly communicated the necessary info about the new equipment to my satisfaction. All in all, this was a great experience compared to others that I’ve had with HVAC contractors.

9/1/16 – Thomas M
Dave was thorough and helpful in going over our HVAC and was gracious in putting up with distractions from the large family dog and the three year old grandson, who wanted to play “catch” !

8/29/16 – Ken
Great work, as usual, Deljo. It is money well spent! We are happy customers for over 10 years! Thanks!

8/28/16 – Cheryl
Charlie was extremely informative and willing to take time to explain the benefits of regular maintenance.

8/27/16 – Marissa
Alan was very knowledgable, explained what he was going to do and provided information and recommendations about my units that allowed me to make an informed decision.

8/18/16 – Richard
Amidst a hot spell, I called Deljo to investigate an issue with my AC. I took pictures, sent them in and Stephanie responded that a Technician could come out the next day to address the issue. As planned, we received a call that Josh was on his way. He came out, inspected and assessed the unit and resolved our problem. We have used Deljo on many occasions, but I will say that Josh was SUPER NICE, walked me through what might be going on, assured me about the condition of my unit and how we use it and left the home C-O-O-L….thank you Josh and Deljo

7/22/16 – Jim
Alberto is professional, methodical, courteous, and punctual. He did not leave my loft until he was convinced the problem was solved.

7/20/16 – Krystal
Chris, the service person who came out was very professional. He explained the process for inside and out, and offered tips for recommended filters. He was very courteous and explained next steps once we learned that our compressor was not working. He even called to schedule an appointment for us to have an engineer come out tomorrow! Very impressed with his customer service.

7/15/16 – Sam
Great job! Leak seal seems to be working.

7/8/16 – Tyler
Mike was just wonderful, feeling cooler, cleaner and less energy use already!!!

7/7/16 – Anna
Tony Serrano was kind, courteous, and focused on his work. I appreciated the explanations for the recommendations. I also appreciated Deljo’s email notification that he was on his way–with his name and photo. What a wonderful way to add a safety measure!! Thank you!

7/1/16 – Sean
The tech was on time and fixed my problem

7/1/16 – Nicholas
Charlie was great. Prompt and informative about our HVAC system.

6/30/16 – Lisa
Called night before as a reminder and then called to tell us they could come earlier, if we wanted them to. Mike was on time, very helpful and respectful of keeping things neat and clean and very informative of the work being done and what was done and what needed to be done possibly in the future.

6/20/16 – Leo
Chris was professional and got the job done. Highly recommended Deljo.

6/11/16 – Sameena
David is always helpful and insightful. He knows how to resolve issues quickly and efficiently

6/3/16 – Richard
Javier was he most friendly service professional I’ve ever encountered. He always made sure I was aware of all of my options and suggested the best and most cost-effective options. Recommend to anyone I know, request Javier if possible.

5/26/16 – Joan Stone
Dave is super patient and explains in detail with all options and cost. I always ask for him and know that he has our best interest and best service in mind. My husband and I appreciate his knowledge and he is a great representative of your company Joan Stone

5/13/16 – Keith
We had Deljo Heating & Cooling replace our ancient hot water heater. They showed up when they said they would, replaced the hot water heater, and were careful to clean up after themselves. Great company to do business with.

5/6/16 – Mark
The technician was on time, polite and quick. Great experience.

5/6/16 – DR
Dave was fantastic , on time and very helpful. Would highly recommend him.

5/5/16 – P.Kaye
Javier called 30 minutes before arriving and was on the earlier side of his time window. He was polite and professional and did a great job on the service call explaining any issues that may arise with our system.

5/3/16 – Amy
Great service, always considerate, friendly and helpful.

5/3/16 – Paya
great service. on time an honest.

5/2/16 – Scott Johnson
The serviceman was on time. The unit is on the roof, but he brought his own ladder. He briefed us on the status of the unit and departed. Very professional.

5/2/16 – Carrie
As always the technicians are always professional, friendly and knowledgeable about all services and units ( equipment) being used in your house.

4/29/16 – Peter
Very polite and competent technician. Smooth process.

4/27/16 – Charlie
Great — got a good report of the work done and recommendations.

4/26/16 – Art
Taylor was very accommodating and flexible working in the construction we had going on. Provided insight into what the future may look like for equipment lifespan and preventative tips around unit care.

4/26/16 – Lesley
I have new equipment. The man who came still looked at the air conditioning unit here and on the roof. He was very pleasant

SIMPLE, SHORT AND TO THE POINT. Very professional visit.

Spent all day finding the leak, getting parts and fixing it. Always explained what was going on, seemed to work efficiently, quietly and respectfully.

Very well. Courteous gave a good explanation about what he found

4/21/16 – John

4/20/16 – Robert
Charlie took care of everything.

4/19/16 – Meta
Chris was just lovely. Very polite and friendly and efficient. I felt that my air conditioning needs were in good hands.

4/19/16 – Penny
The tech was knowledgeable and answered my questions. He was also polite. We have been Deljo customers for years. Thank you!

4/14/16 – Inne
Easy to get an appointment for technician to come out. Day of service, Charlie came and figured out the problem not long after arriving, offered options on repair or waiting. Did the repair after part was delivered. So far happy with DelJo’s services.

4/14/16 – David
Very thorough, always does a great job.

4/14/16 – J.
I have appreciated the courtesy, professionalism, and excellent work of Deljo Heating & Cooling from the beginning. I would recommend highly to anyone!

4/12/16 – Dean
Tony was right on time and when he finished he explained to me exactly what was done and suggested what else I should do and also explained your service contract and how it would benefit me. You have a excellent employee.

4/11/16 – Bob
Javier was very thorough and polite. He explained everything in detail.

3/31/16 – Liz
Best experience I have ever had with a contractor! From the original phone call to the installation it was an experience of high value, customer focused interactions, and exceptional service.

3/30/16 – Guido
Alberto clarified the issues

3/29/16 – Rita
Anyone else could have told us we had to buy a new fixture right away but we were given an option to bring it back to life one more time! Thank you for your honesty Alan!

3/29/16 – Leslie
Courteous, informative, left work areas cleaner than when started.

3/29/16 – Elle
Ralph was on time, explained issues thoroughly. Kept me abreast of what he was doing and how long it would take

3/28/16 – Kevin
Found problem quickly and handled it just as fast

3/28/16 – Jen
Gus was great – very informative and explained everything clearly. He was very prompt and took care of my issue right away.


Winners of the Angie's List Super Service Award from 2004 to 2017!

2700 N. Campbell Ave, Chicago, IL 60647