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Expert HVAC Services in Ontario, CA

Need reliable heating or cooling solutions in Ontario? Schaef Air Heating & Air Conditioning delivers expert HVAC services designed for maximum comfort and efficiency. We’re your trusted partner for installations, repairs, and indoor air quality improvements.

Discover Comfort with Schaef Air in Ontario

At Schaef Air, we believe comfort begins at home—and we’re here to help Ontario homeowners achieve just that. With over 30+ years of experience, our family-owned team provides professional HVAC services tailored to your needs. Whether you’re replacing an aging furnace or need emergency AC repair, you can count on fast, efficient, and friendly service. Here’s what we bring to every project:
✓ Free in-home estimates and transparent pricing
✓ Certified technicians with deep local expertise
✓ Fast response times and reliable service
✓ High-efficiency HVAC system options
✓ Ongoing maintenance plans for long-term comfort

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Services That We Offer in Ontario

We provide a full range of heating, cooling, and air quality services for residential and commercial clients in Ontario. From new system installations to air duct cleaning, our solutions are designed to improve efficiency and indoor comfort.

Maintenance Plans

Schaef Air’s HVAC Maintenance Plans offer scheduled tune-ups, priority service, and discounted repairs to keep your system running efficiently. Whether you're in Chino, or nearby, we deliver trusted care year-round.
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Indoor Air Quality

Our indoor air quality services in Chino, Claremont, Upland, and nearby areas are tailored to families seeking healthier, cleaner air. We install high-efficiency purifiers, perform thorough duct cleanings, and upgrade filters to reduce allergens and improve overall HVAC performance.
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Heating Services

Our heating services in Chino, Claremont, Upland, and nearby areas are designed for reliability and comfort. We install, repair, and maintain furnaces and heat pumps with the highest standards, ensuring your home or business stays warm when it matters most.
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Commercial HVAC

Our commercial HVAC services in Chino, Upland, Claremont, and surrounding cities are trusted by local businesses, HOAs, offices, and property managers. Schaef Air offers reliable installations, responsive repairs, and energy-efficient upgrades tailored to your facility’s size and demands.
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AC Services

Our AC services in Chino, Claremont, Upland, and nearby areas are designed to meet the cooling needs of both homes and businesses. With certified technicians and years of local experience, Schaef Air delivers efficient, reliable air conditioning installations, repairs, and maintenance tailored to your climate and comfort needs.
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Why Homeowners Should Choose Schaef Air in Ontario

Ontario residents trust Schaef Air for a reason: we’re not just a service provider—we’re part of your community. Our reputation is built on honest communication, expert installations, and our deep commitment to customer satisfaction. We never cut corners, and we always show up on time. When you choose us, you’re choosing a partner who understands your local climate challenges and provides custom solutions that last.

✓ Over a decade of trusted HVAC experience
✓ Personalized service from a family-owned business
✓ Transparent pricing and quality workmanship

Other Areas We Serve Near Ontario

In addition to Ontario, we proudly serve Rancho Cucamonga, Upland, Claremont, Pomona, Azusa, and Laguna Woods. No matter where you are in San Bernardino or Orange County, Schaef Air brings expert HVAC service to your doorstep.
Azusa
Buena Park
Chino
Chino Hills
Claremont
Corona
Costa Mesa
Fontana
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What Ontario Customers Are Saying

We’re proud to serve homeowners and businesses throughout Ontario, CA with HVAC solutions that deliver comfort and peace of mind. Our customers consistently praise our fast response times, knowledgeable technicians, and honest, high-quality service.

“Extremely courteous and knowledgeable. Diagnosed the issue with our AC quickly and gave us honest options. The house is finally cool again!”

Wesley Clark Customer for AC Diagnostic & Repair

“Schaef Air installed a ductless mini-split in my garage studio. They did a clean job and the new system works beautifully. Highly recommend!”

Joanne Rivera Customer for Ductless Mini-Split Installation

“Needed emergency service during a heatwave. They came through same day and fixed the problem fast. Super professional team.”

Miguel Sanchez Customer for Emergency AC Repair

Frequently Asked Questions About HVAC Services in Ontario

Not sure how often to service your HVAC system? Wondering if a ductless mini-split is right for your home?
  • We're here to help. Below are some of the most common questions we receive from Ontario homeowners.
  • Learn how Schaef Air keeps Ontario homes comfortable year-round.
HVAC Maintenance: You should schedule HVAC maintenance at least twice a year—once before summer and once before winter. This helps identify potential issues early and ensures peak performance.
AC Repair: If your air conditioner is blowing warm air, making loud noises, or causing unexpected energy bill spikes, it's time for a professional AC repair. Early service can prevent major breakdowns.
Ductless Mini-Split: Yes, we install high-efficiency ductless mini-split systems that are perfect for homes without existing ductwork. They’re quiet, energy-efficient, and allow room-by-room temperature control.

Ready to Experience Top-Tier HVAC Service in Ontario?

Schaef Air Heating & Air Conditioning is here to keep your home or business comfortable every season. Whether you need an emergency repair or a system upgrade, our experts are just a call away. Let us show you what quality HVAC service feels like.
Schedule Your HVAC Service in Ontario Today