24/7 Emergency Service
Trust Oncourse for all your home comfort services. Our 24/7 Emergency Service guarantees swift attention. Day or night, reach out for immediate resolution, ensuring your home or business stays comfortable and functional, providing you with peace of mind around the clock. Give us a call at 888-331-7854.

Carol Stream, IL Heating & Air Conditioning Services

With Northern Illinois’ steamy summers and freezing winters, it’s invaluable to have a trusted climate control specialist on your side. Oncourse has a network of in-house NATE-certified technicians as well as trusted, licensed, insured, independent contractors and premium carrier products. For homeowners in Carol Stream and surrounding communities, there’s no better partner.

Professional Air Conditioning Repair

If you own an air conditioning system, there will probably come a time when you need professional repairs. From leaky refrigerant lines to temperamental thermostats, even the most well-made systems act up on occasion. When they do, simply pick up the phone and call Oncourse. We’ll send pre-qualified service technicians to quickly diagnose the problem and complete the necessary repairs. All of our technicians ensure air conditioning services are always performed with diligence, professionalism, and skill.

Comprehensive Air Conditioning Service

In addition to fixing malfunctioning equipment, we also offer essential services to help support optimal HVAC system performance. By enrolling in one of our HVAC maintenance plans, you’ll get access to a full range of preventive services. This includes comprehensive 20-point system tune-ups, annual safety inspections, and routine performance testing. If necessary, we’ll even recharge your air conditioner or heat pump with up to two pounds of refrigerant. We also offer monthly heating and cooling protection plans with repair coverage, or replacement coverage if your central air conditioner or heat pump cannot be repaired.

Speedy Furnace Repair in Carol Stream, IL

When the wicked winds of winter are blowing outside your door, you can’t wait around for heating repairs. You need proven professionals who can fix your furnace quickly, carefully, and correctly. That’s just what you’ll get when you call Oncourse. If a serious problem makes furnace repairs impractical, we also offer affordable, high-quality HVAC replacement options. As a Carrier Factory-Authorized Dealer, we carry top-notch systems from one of the most trusted names in the industry.

If you need help with your home heating or cooling system, don’t stress out searching for a solution. Just call Oncourse and let our friendly, knowledgeable staff do the rest.

 

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What to expect

Discover the Oncourse difference

24/7 Emergency Service

Count on us around the clock for swift assistance whenever unexpected home issues arise.

Free in-home estimates

Get accurate assessments without financial obligations to plan your home care budget effectively.

Warranty Coverage

Don't stress about your home systems. Our warranty coverage means we will be there to help with potential issues.

NATE-certified techs

Rest assured with our highly skilled and certified technicians ensuring quality service and expertise.

Certified Care You Can Count On

Trust our commitment to excellence and industry-recognized certifications for dependable home solutions.

Carrier President's Award Winners

Experience award-winning service and reliability from a trusted leader in home care solutions.

24/7 Emergency Service

Count on us around the clock for swift assistance whenever unexpected home issues arise.

Free in-home estimates

Get accurate assessments without financial obligations to plan your home care budget effectively.

Warranty Coverage

Don't stress about your home systems. Our warranty coverage means we will be there to help with potential issues.

NATE-certified techs

Rest assured with our highly skilled and certified technicians ensuring quality service and expertise.

Certified Care You Can Count On

Trust our commitment to excellence and industry-recognized certifications for dependable home solutions.

Carrier President's Award Winners

Experience award-winning service and reliability from a trusted leader in home care solutions.

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TESTIMONIALS

See What Your Neighbors Are Saying

Excellent service. Completed job as I would have, courteous and professional. Great job! Jeff Peter's did the work.

Noreen M.

Noreen M.

Jeff was professional, knowledgeable, and friendly. Looking forward to working with him again.

Paul J.

Paul J.

Scott came out to my house to repair my furnace from Nicor. Did an excellent job. Was fixed up efficiently and quickly.

Joan N.

Joan N.

Bryan Nystrom went above and beyond to help our family get THE heat back on. He went to the warehouse and back late on a friday night to ensure the best possible professional service. HIGHLY RECOMMEND!

Sonya H.

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Sonya H.

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