Air Conditioner Repair & ServiceBy V M O'Leary S/M & Htg
V M O'Leary S/M & Htg can help you stay comfortable all summer with professional air conditioner repair and service near Cary, IL. Our experienced technicians deliver prompt, reliable solutions to keep your AC system running efficiently and your home cool.
What Does The Process Look Like?

Book An Appointment
Get started by booking an air conditioner repair or service appointment with us by giving us a call or scheduling an appointment online.
Evaluation & Estimate
During your appointment, a certified technician will conduct a comprehensive evaluation of your air conditioner to identify any potential issues. Following the inspection, they will provide an estimate that outlines the recommended repairs and associated costs before moving forward with any work.
Perform Service Or Repair
Repair or service work is executed to get your air conditioner's efficiency and performance back to its optimized level. Count on our technician's knowledge and expertise to ensure reliable operation and performance.
About V M O'Leary S/M & Htg

Other Services We Provide

Furnace Repair & Service
We offer expert furnace repair and service to ensure your heating system runs the way you expect it to. Our certified technicians are skilled at diagnosing issues, making any necessary repairs and adjusting your system to maintain comfort throughout the year.
Annual HVAC Maintenance
We offer annual HVAC maintenance to keep your heating and cooling system running efficiently throughout every season. Regular HVAC maintenance helps prevent system breakdowns, boost energy efficiency and extend how long your HVAC system lasts.
HVAC System Installation
Count on us for expert HVAC system installation as we bring comfort and energy efficiency to your home. We offer durable Bryant equipment, a seamless installation process and heating and cooling solutions tailored to your home's needs.
Trusted HVAC Professional in Cary
Leave a ReviewBryant.com Reviews
5 out of 5(43 reviews)
- Review by
Julie
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May 13, 2026
A perfect experience. Communication was great, installation was fast and very easy to work with.
I would highly recommend VM O'Leary S/M & Heating.
Recommends this dealer
Verified Purchase
Expertise:
5
Solve Problems:
5
Service:
5
- Review by
Jerry
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April 16, 2025
Another great experience with VM O'Leary
Vince, Dan, and Dave, as usual, were great.
Recommends this dealer
Verified Purchase
Expertise:
5
Solve Problems:
5
Service:
5
- Review by
JODI
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March 03, 2025
Awesome Family Company to Work with and will be calling them for everything!
V.M. O'Leary Sheet Metal & Heating is the best company I have ever worked with when it comes to issues with my home. From the minute I called them to the minute the work was completed I couldn't have asked for more. The owners are wonderful people and the techs know their stuff and made me feel at ease with the entire process!
Recommends this dealer
Verified Purchase
Expertise:
5
Solve Problems:
5
Service:
5
- Review by
Tim
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December 26, 2024
Professional, efficient, and high quality work
Incredible service, with quiet, highly efficient and cost effective product installed
Recommends this dealer
Verified Purchase
Expertise:
5
Solve Problems:
5
Service:
5
- Review by
JERRY
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July 31, 2024
Vince and his crew did a great job on our most recent purchase. They have been our "go to" HVAC people for 35 years!
Great work!
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Douglas
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December 17, 2023
V.M. O'Leary S/M & Heating
I have been a customer of theirs for over a decade and have used them to fix and install new systems of all types. Their professionalism and product knowledge is excellent. System installation is first rate and their clean\-up after completion is truly first rate.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Patrick
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September 04, 2023
Brown family HVAC system installation
VM O'Leary are a pleasure to work with. They are extremely knowledgeable, honest and capable. Very efficient installation with minimal disruption to the household.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
RAY
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July 19, 2023
Vince O’Leary’s Excellent Service.
Vince and his entire staff did a wonderful job of solving my air conditioning problem. They installed a new system very quickly. Everyone involved in the installation were very professional and a pleasure to work with. I have used Vince for all my Furnace and Air Conditioning need for over 20 years. I very highly recommend them.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Dave
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January 22, 2023
Great Dealer
Quality workmanship
Recommends this dealer
Verified Purchase
Expertise:
4
Service:
4
Solve Problems:
4
- Review by
Vic
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October 24, 2022
Outstanding service
Great job taking care of our system.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
RANDY
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August 23, 2022
Great Experience
Fast install
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Colleen
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January 04, 2022
Personalized Care
We got several estimates to install air conditioning in our house All estimates came by email. O'Leary's was the only company that came to the house and explained the process and gave us options. This personalized service was the reason we chose O'Leary's. It took 3\-4 guys 8 days install everything, which included wiring, duct work, and air handlers. We had special circumstances, an old house with hot water heat, an addition that was difficult to get to. The vents and return vents fit into our high ceilings and look great. We are eager to experience summer and try out our AC without having to put in window units. We are very happy with O'Leary's knowledge, quality of service, genuinely nice company to work with.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Jim
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July 17, 2021
Bryant AC Work July2021
Great job!
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Lloyd
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June 30, 2021
Long time customer with O'Leary. The only guy I trust is Vince.
Always a good, professional and courteous transaction.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
MATT
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May 04, 2021
Excellent experience
I've used Vince in my previous home and never had an issue with his people or the products he recommends. I would highly recommend his company.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Pat
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January 17, 2021
Hvac install
Installation crew arrived at the scheduled time, work was completed in a timely manner, and all debris was cleaned up and removed from site. Love that the heat/air can be programmed from my phone.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Mark
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July 31, 2020
Excellent value and craftsmanship.
Did exactly what they said they would do. We already recommended to someone else.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
RICHARD
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June 24, 2020
Review of VM O'Leary
Excellent Service, Extremely Prompt, Professional Employees
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
John
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June 15, 2020
Job Well Done for AC Repair
Vince and his crew did a great job analyzing our A/C unit issues, providing solutions with various price points, and finishing the job on time as promised. When our A/C goes out or if you just need annual service, call Vince!
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Greg
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April 28, 2020
Great experience
Great work, professional, and cleaned up after themselves. Explained the systems in depth
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Jef
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January 13, 2020
Quick response.
When my old furnace broke down (terminally) in he middle of winter, V M O'Leary provided fast and professional installation of a new one.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Diane
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December 30, 2019
Highly Recommend
Fantastic service with knowledgeable technicians.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Andrew
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December 18, 2019
Great people and great service / very detailed
We have a very unique house in layout and Oleary was able to configure a system that meets its needs perfectly. The execution on the installation and attention to all the details that were required were second to none.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
John
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December 12, 2019
Amazing, friendly and flexible
They were amazing. Our heat gave out and they were able to look at it that day. I am teacher so I was unable to get out but they worked with my schedule. They were very upfront with costs associated with the furnace and worked with our somewhat funky old house duct work to install a furnace in less than a day. The tech, Charlie, was very knowledgeable and friendy
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Melissa
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September 24, 2019
You will never receive better service!
Vince and his team are the best! They set the standard for subject matter expertise and the treatment of their customers (although I would even go further and say they treat us like family)!
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Joe
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August 28, 2019
Very prompt, courteous and professional
The crew that installed our system worked extremely well together, each member of the team attending to their own expertise area.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Victor
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July 20, 2019
Excellent and very knowledgeable
Everything went great. Price very good, service \& install perfect
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
ANNA
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July 12, 2019
Honest and trustworthy!!
I just had my my furnace and AC replaced. Charlie and his crew were wonderful. The hottest day of the year and they managed to get the entire job done. I would highly recommend this company and the guys that work for him. Also, it was such a pleasure talking to Judy about everything.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Laura
-
June 18, 2019
Best In The Business
These guys cleaned up a huge mess that another furnace installer had made. These guys are honest and extremely knowledgeable. Going forward, I?ll only use these guys.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
HENRY
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December 17, 2018
Did a Great Job!
Vince and Dan did a great job, from trying to repair the old furnace, to getting us estimates and installing the new unit, all in a very short amount of time!
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Scott
-
September 12, 2018
Recommend O'Leary
As a team, Vince, Dan, Judy, and Dave are very thorough. Dan, as the lead installer, answers all questions and is very personable. They prioritize craftsmanship on the install. Judy is thorough and professional running the business end. Vince clearly is passionate and knowledge \- sustaining the family business. Highly recommended.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Jenny
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July 10, 2018
Vince, Judy, and the entire team are wonderful!
Vince took his time to really explain all of the different options for our home. We have been working with Vince and his team for years now and they are ALWAYS there when we need them. We can always count on O'Leary A/C, S/M, \& Heating to fix our problem quickly and the right way, save us money when they can, and help keep our home comfortable.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
lynn
-
May 31, 2018
Excellent Service
The service techs were professionals. Fast and efficient.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Lee
-
March 01, 2018
n/a
The unit was installed in a very professional manner .On time as promised
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Beth and Walter
-
November 06, 2017
Heating installation
Excellent, prompt, polite \& tidy.
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Dan
-
October 14, 2017
VM O'Leary Htg.
Had Vince Install new furnace and air conditioner, Weather has been nice, haven't had to use the unit much, will know more in a couple of season changes.
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Gaylee and Hal
-
September 28, 2017
Best Choice Made!
Performance and efficiency.
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Edward
-
August 14, 2017
Furnace and AC replacement
Excellent service, attention to detail, excellent followup.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
David and Melinda
-
June 29, 2017
V M O'Leary S/M & Htg Is the best!
V M O'Leary S/M \& Htg Only has employees who are incredibly versed in the products they install. They are also friendly and polite, which makes for a great experience. We love our new A/C, as the temperature throughout the house is now even!
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Jeff and Deborah
-
June 28, 2017
True Craftsmen!
We are so pleased with the work that VM O'Leary performed regarding the purchase and installation of our new furnace and air conditioning units in our home. To start off with, Vince's responsiveness via telephone and in\-person was phenomenal. He took the time to explain the various options we had on Bryant equipment and the benefits of each choice. The proposal was very reasonable. They were able to complete all of the work within a very short time. VM O'Leary's team, Daniel and Charlie, did a fantastic job from start to finish (including cleaning up when they left the property)...they were definitely perfectionists...true craftsmen. VM O'Leary's professionalism, quality and craftsmanship is excellent! We would HIGHLY recommend them to any potential customers.
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Tom and Margaret
-
January 15, 2017
Warm and Toasty
We got a wonderful product installed by people we feel we can trust. Love supporting local business owners. Thank You
Recommends this dealer
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
John and Stephanie
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October 12, 2016
New furnace and A/C
Vince was very helpful in determining size furnace and A/C for my house. His crew (Daniel and Charlie) was on time and explained each item installed. Also, Charlie noticed my sump pump was running but not injecting water. I called another contractor and they replaced pump. Judy did a terrific job with paperwork (rebates) and communicating schedule.
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
- Review by
Ken and Mary Beth
-
September 07, 2016
Palatine, IL
Outstanding workmanship and professional behavior. The guys went above and beyond to get the AC installed for a the night. It would have been a rough night for rest if not for their diligence! I give OLeary S/M and Htg the highest recommendation.
Verified Purchase
Expertise:
5
Service:
5
Solve Problems:
5
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