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.

Keep Your HVAC Running Smoothly with Routine Maintenance


From routine health screenings to scheduled vehicle tune-ups, a little preventive care often goes a long way. The same is true of your home heating and cooling system. Sticking to a preventive maintenance schedule is a low-cost, high-impact way to ensure you get the best from your HVAC system in Elmhurst, IL.

Scheduling Service Visits

Many homeowners mistakenly believe that HVAC maintenance is only necessary when their system isn’t working normally. Unfortunately, that means they often wait until it’s too late. For optimal effectiveness, manufacturers typically recommend that heating and cooling systems each be serviced at least once per year. Scheduling a heater tune-up in the fall and air conditioner maintenance in the spring offers the greatest protection.

What to Expect From HVAC Maintenance

During routine service visits, pre-qualified service technicians follow a full checklist of essential tasks. This includes testing your system and inspecting it for any issues that may require repairs. Technicians will also carefully clean your system’s components and apply fresh lubricant to any moving parts. After a final round of testing and tweaking, you’ll be given a full report detailing the health of your system.

Trust the Heating and Cooling Experts

When you schedule a maintenance visit, you need to trust that your system is in good hands. A rushed or careless service visit can easily lead to costly repairs and major headaches down the road. At Oncourse Heating, Cooling, Plumbing, we leave no stone unturned when we perform HVAC maintenance. Our network of in-house NATE-certified technicians as well as trusted, licensed, insured, independent contractors are equipped with the latest training and tools. We’re a Carrier Factory Authorized Dealer, but our technicians have the skills to service all brands and types of HVAC equipment.

You deserve to enjoy consistent, efficient comfort all year long. At Oncourse Heating, Cooling, Plumbing, we have the expertise to make it happen. Give us a call today for expert HVAC maintenance at a price you can afford.


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Why Choose Us For Your Heating, Air Conditioning And Plumbing Needs?

  • Warranty: Providing peace of mind with reliable coverage.
  • Service For All: Comprehensive solutions tailored to your needs.
  • Home Care Experts: Keeping homes running smoothly since 1992.
  • Certified Care: Trustworthy service backed by industry certifications.
  • Customer Support: Dedicated assistance for all your inquiries and concerns.
  • Energy-Efficient Products: Offering sustainable and cost-effective solutions.