#1 BOILER SERVICE IN CHICAGO, IL

ALL MAINTENANCE GUARANTEED FOR 1 YEAR

We 100% guarantee our boiler service in Chicago or we invite you to call the owner.

UP FRONT
CONTRACT

Know the price of the boiler service before any work is done.

LOCALLY OWNED AND OPERATED

A local team that is part of and invested in the Chicago community.

24 HR SERVICE
AVAILABLE

Our certified boiler service experts are here to help when you need us most.

BOILER SERVICE IN CHICAGO

Space heating energy costs account for roughly 25-30 percent of the total energy costs for a typical commercial building. High-efficiency boilers can reduce heating costs by 10 percent and in many cases by as much as 20 to 30 percent. The best tip we can give Chicago homeowners is to have a tune up service or preventive maintenance performed on their heating system to keep operating cost low. When your boiler starts giving you trouble, call A Custom Services Inc for boiler service in Chicago. Our boiler repairs team responds quickly and professionally to all home heating repair calls. We enjoy our work and it shows! We look forward to welcoming you as a customer and being your preferred repair company whenever you have a boiler problem in your home.

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.

Energy Efficiency

A boiler replacement that reduces gas consumption by 20 percent could save about five to 10 cents per square foot annually.Boilers are available in two efficiency ranges: around 80 percent for standard conventional boilers, and percentages in the 90s for energy-efficient condensing units.

The dividing line between these efficiency ranges is based on the boilers ability to withstand condensing flue gases. Condensing flue gases, which occur in high-efficiency boilers, require special design considerations to tolerate the corrosive effects of the condensate. Boiler efficiency is defined as how much of the heating value of the fuel is being converted to useful heat.

Condensing boilers absorb more heat from combustion gases, allowing the water vapor to condense and therefore providing increased efficiency. Any hydrocarbon fuel burned in a boiler, whether it is propane, natural gas, or fuel oil, produces water vapor during the combustion process.

Conventional boilers are non-condensing boilers with materials that cannot tolerate the corrosive properties of condensing flue or stack gases. Conventional boilers operate around 80 percent efficiency, compared to over 90 percent efficiency for condensing efficient boilers. Other factors also influence boiler efficiency, including boiler shell losses, piping losses, and cycling losses.

FIRE TUBE AND WATER TUBE

Boilers use water to absorb heat from a burned fuel/air mixture. Boilers can produce steam or hot water. The two most common types of boilers are fire tube and water tube.

Fire tube boilers typically consist of a series of straight tubes that are housed inside a water-filled outer shell. As hot gas flows through the tubes it heats the water that surrounds the tubes.

Water tube boilers are designed to circulate hot combustion gases around the outside of a large number of water-filled tubes. Newer boilers have tubes with complex and diverse bends and fins to maximize the heat transfer area.

Because the water/steam pressure is confined inside the tubes, water tube boilers can be fabricated in larger capacities than fire tube boilers and are often preferred for higher-pressure steam applications.