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.

HVAC services in chicagoland

From the day Oncourse opened our doors, we’ve made it a priority to deliver outstanding services in Aurora, Bolingbrook, Carol Stream, Elgin, Elmhurst, Naperville, Oak Lawn, Orland Park, Schaumburg, Wheaton, IL, and the surrounding areas. Whether you need an AC tune-up or a new furnace, you can depend on us.

24/7 Emergency Service 888-331-7854

Air conditioning and heating

As an experienced HVAC company, Oncourse is familiar with the twists and turns of Chicagoland weather patterns. We have a proven track record of delivering reliable, cost-effective solutions that keep you comfortable, safe, and healthy all year long.

carrier-technician-performing-ac-services

Installation and replacement

When it’s time for a new AC unit, heat pump, furnace, or boiler, our pre-qualified service technicians have the expertise you need to help you make a wise decision. We’ll install your equipment to the highest standards and ensure that it’s the correct size for your needs.

Service and repair

We specialize in keeping your equipment performing at a high level. Our experts maintain and repair all models and brands of heating and cooling equipment, and our 24/7 emergency coverage ensures a fast response when you have an equipment failure.

Indoor air quality

Because Americans spend a lot of time indoors, we cannot afford to ignore indoor air quality. Our air quality solutions make your home’s air fresher and keep your loved ones healthier. We’re seasoned veterans when it comes to neutralizing indoor air pollution.

Ductless systems

Our conventional HVAC systems are energy-efficient and dependable, but sometimes ductless AC is a better fit. We install mini-splits that lower your carbon footprint and enhance your indoor air quality. Although we install Carrier systems, we fix and service all brands of ductless systems.

Preventive maintenance

Regular maintenance is essential to consistent comfort. We offer service plans that relieve you from worrying about the condition of your equipment. With regular maintenance from Oncourse, you’ll greatly enhance the likelihood of uninterrupted comfort all year long.

Home warranty

Our custom home warranty plans, along with our comprehensive HVAC services, take the hassle out of caring for your house. These plans are meant to help protect you and your budget from the expenses and frustration that arise from unexpected repairs to your home’s appliances, lines, and systems.

Contact us for expert services

With all the HVAC companies around, it can be hard to know who you can count on. At Oncourse, we have a network of in-house NATE-certified technicians as well as trusted, licensed, insured, independent contractors. We offer convenient, simple, reliable, and trustworthy services for confident homeownership and peace of mind. As a Carrier Factory Authorized Dealer, we feature equipment that’s quiet, energy-efficient, and environmentally safe.

We provide clear pricing policies and free in-home estimates on new equipment. Our staff operates according to the highest safety, performance, and ethical standards. What’s more, our customer service line is available 24 hours a day, 7 days a week.

Financing Available

Buy Today, Pay Over Time Learn More
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.

Review Image
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.

,

Sonya H.

,