Mon-Fri: 8 AM - 5 PM | Sat: 9 AM - 2 PM Tech On-Call 24/7 for Emergencies

Award-Winning Furnace Maintenance Company Serving Orange County Since 1996

Locally Owned HVAC Company Since 1996

Serving Orange County Since 1996

Air Conditioning Preventative Maintenance Experts

Expert Troubleshooting & Advice

We Employee NATE Certified Technicians

Professional, NATE-Certified Technicians

Service All HVAC Makes & Models

We Service All Major HVAC Makes & Models

Experts in Home Heating System Design

Replacement Filters for Carrier Heaters/Furnaces

Free Estimates for New Installations

Competitively-Priced Maintenance Agreements

Furnace Tune-Ups & Preventative Maintenance for Orange County

McMaster Heating & Air Conditioning is Orange County's best choice for reliable, cost-effective heating system tune-ups and maintenance. As an award-winning heating and air conditioning company with decades of experience, we are experts in all makes and models of furnaces, home heaters, ductless mini-split systems, and heat pumps. For most residential HVAC systems, we recommend a biannual preventative maintenance schedule with a furnace tune-up and safety check in the fall to prepare for colder winter temperatures. By completing regular heating system maintenance, you not only promote a reliable, safe, and efficient HVAC system but can also save on repair costs by identifying potential problems before they turn into major breakdowns.

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Customer Reviews


Ron McMaster and his team generously and patiently shared their expertise to tailor the best HVAC system for our home. I would urge anyone feeling overwhelmed by HOA and city requirements to call McMaster Heating and Air Conditioning. They will guide you through the permitting process, installation and maintenance. Call Ron and your HVAC problems will soon be solved.

John Johnson Via Google Review

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We highly recommend McMaster! Excellent installation of a new Furnace and Air Conditioner. The technicians did a fantastic job. They were polite and professional. The owner, Ron McMaster, was very accommodating with the selections he offered us and good value with the pricing.

Don Ledgard Via Google Review

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I had gotten several estimates and McMaster's was the best. Ron was very professional and honest with me. I'm happy that we went with McMaster Heating and Air conditioning. I would recommend them to anybody!

Tammy M., Big Bear Lake, CA Via Yelp Testimonial

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Reliable Heating System Maintenance Performed by NATE-Certified HVAC Professionals

As a preferred HVAC contractor for Orange County homeowners since 1996, McMaster Heating & Air Conditioning has earned an excellent reputation for unparalleled service, exceptional workmanship, and honest advice. Our highly trained, NATE-certified technicians have decades of hands-on experience and take additional training courses to stay up to date on the newest HVAC technological advancements. Extremely professional and knowledgeable, they can be relied upon to arrive at your scheduled appointment time in uniform and in a fully-stocked service vehicle with all the necessary diagnostic tools and equipment to complete your heating tune-up as quickly and efficiently as possible. If they notice any potential problems during your heating system inspection, they will inform you immediately and can provide expert advice on the most cost-effective solution for your indoor comfort and budget.

Comprehensive Maintenance Inspections, Filter Replacements, and Expert Troubleshooting & Advice For All Makes & Models

At McMaster Heating & Air Conditioning, we believe in going the extra mile for our customers. As a part of your multi-point furnace tune-up and maintenance service, we complete a thorough and detailed inspection of all major heating system components, including safety controls, ignition assembly, gas piping, blower motor, combustion chamber, condenser, evaporator, thermostat, and more. We also clean and replace standard air filters, lubricate any moving parts, measure volts and amps, and monitor the heating cycle to be sure your system is functioning at optimal efficiency. For your convenience, our heater/furnace tune-ups can be scheduled as part of our preventative maintenance program or as a standalone service.

Call Now to Schedule Your Heating System Tune-Up! We Serve All of Orange County, Including Irvine, Newport Beach, Mission Viejo, Rancho Santa Margarita, & Nearby Areas

Contact us today to schedule a service call or fall furnace tune-up with one of our experienced service technicians. You can also visit our storefront in Irvine to purchase Carrier replacement filters, furnace parts, and indoor air quality products.

Factory Authorized Carrier Dealer - McMaster Heating and Air Conditioning Carrier Certified Health Air Expert NATE Certified HVAC Technicians NCI National Comfort Institute, Inc. Ozone-Friendly Puron Refrigerant TECH Clean California Energy Solutions
Home Heater/Furnace Maintenance Irvine, OC

Recent Projects

To keep your furnace working properly during the cold winter months, we recommend fall heater tune-ups for all of our Orange County clients. Heating system maintenance includes multi-point inspection of all components and safety controls.

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Proudly Serving All of Orange County

  • Aliso Viejo
  • Anaheim
  • Brea
  • Buena Park
  • Costa Mesa
  • Coto De Caza
  • Cypress
  • Dana Point
  • Dove Canyon
  • Foothill Ranch
  • Fountain Valley
  • San Juan Capistrano
  • Santa Ana
  • Seal Beach
  • Southern California
  • South Orange County
  • Stanton
  • Tustin
  • Villa Park
  • Westminster
  • Yorba Linda
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