Chicago heating & Cooling Service Areas

A Custom Services is Chicago’s leading air conditioning and heating company. We have been providing HVAC services to the community since 1993, and have all of the resources and expertise needed to solve any problem. Each of our technicians is licensed and has undergone a full background check to ensure the safety of you and your family. We take pride in our work and always make sure to complete every job thoroughly and with the highest quality. Our goal is to make your home as comfortable as possible. Our team strives to provide excellent service, while keeping your home or business as clean as possible. If you need services from a professional air conditioning and heating company in Chicago, contact our team. 

At A Custom Services, we take pride in being transparent and honest with each of our customers. Before we begin any work, we will provide you with a full cost estimate so that you can know what to expect upfront. Then, if you choose to hire us for services, we will come to your home or business with all of the tools necessary to finish the job as quickly and accurately as possible. Our Chicago based air conditioning and heating company won’t make you wait for days to have your heater or air conditioner fixed. When you call us, you can be rest assured that the issue will be swiftly resolved.

Contact A Custom Services today to let us know how we can best serve you. Our friendly professionals are here to assist you with all of your needs, so that you can be comfortable in your home, no matter what the weather is like outside. We look forward to serving you and your family!

Service areas

5-Star Rated Heating & Air Conditioning Services

EXCELLENT Based on 54 reviews
Jay Mahlendorf
Jay Mahlendorf
2023-01-24
Working with A Custom Services Inc, including the engineer Steve S. and Michael in their business office, was all positive and I will happily work with them again. They understood, made helpful recommendations, communicated proactively, and they followed through as they said they would. It was a stress free experience and good value for the work.
Wendy Campnell
Wendy Campnell
2023-01-13
Steve went above and beyond answering my questions and explaining how things worked. I really appreciated his expertise and patience.
Bill Harris
Bill Harris
2022-12-30
Alfredo and Tom replaced our furnace and did a Fantastic Job. They were professional, courteous and very informative. They were considerate of the delivery, prepping the area to keep it clean and worked efficiently and very quickly. Alfredo is a master HVAC professional and did a great job! Tom was fantastic on the installation as well as keeping my wife and I informed of the new aspects of the furnace and thermostat. Previous to the replacement Steve responded very quickly for the no heat call and was very professional to diagnose the problem and provide multiple solutions. Steve did an excellent job with the solution write up, planning for the hardware readiness and ensured that our project was completed the next day. Michael in the main office performed all the managerial interaction very well, answered all our questions and took care of the paperwork and invoicing in a very professional manner. Highest grades for this team and I will recommend them to all our friends.
Shauna Daou
Shauna Daou
2022-11-03
A Custom Service was amazing throughout our experience with them. When I contacted them, Michael called me back promptly and helped me in scheduling an appointment. He also called a day before the appointment as a friendly reminder and to confirm that the appointment still worked for us. Alfredo was the technician who came to our house. He was on time and walked us through everything he was checking. He also answered all of our questions and even answered some questions my neighbor had about his system! He was very thorough, knowledgeable, and professional. After the service, Michael reached out again to make sure everything worked well. We used A Custom Service to do routine maintenance on our radiant heating system, and moving forward we will be using them to address all of our HVAC needs! Job well done.
Alvaro Santana
Alvaro Santana
2022-10-27
Contacted A Custom Service to get some work done on my boiler. Response was quick, Michael was able to help me set an appointment up and was very attentive to our communications. Alfredo, our technician, was knowledgeable with boiler systems and was able to answer my questions. Found out that a circulation pump needed to be changed and he had the part in his truck so there was no delay in getting us up and running. A Custom Services will be our go to heating service from now on.
Brennan Williams
Brennan Williams
2022-10-25
Great crew all around, owners, office, technicians. What I most appreciate is that everyone I dealt with was polite and professional. Secondly, they are trying to solve your HVAC issues, not charge you for things you don’t need. Highly recommend.
Natalie Rodriguez
Natalie Rodriguez
2022-10-21
Always thorough and honest.
Tim Oryhon
Tim Oryhon
2022-10-18
Michael was very responsive with initially setting up the service technician appointment. Alfredo was very helpful and a wealth of information. Our experience with everyone at A Custom was superb.