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Award-Winning AC Installation Company Serving Orange County Since 1996

Locally Owned HVAC Company Since 1996

Serving Orange County Since 1996

Custom Designed, Whole-Home Cooling Solutions

Custom Designed, Whole-Home Cooling Solutions

We Employee NATE Certified Technicians

Experienced NATE-Certified Installers

Save Money with Special Offers & Rebates

Manufacturer, State, Local & Utility Rebates

Free Estimates for New Installations

Free Estimates for New Installations

100% Satisfaction Guarantee for One Year

100% Satisfaction Guarantee for One Year

Irvine's Best Choice for Air Conditioner Installation & Replacement

McMaster Heating & Air Conditioning is a family-owned HVAC company in Irvine, CA that specializes in air conditioner installation and replacement services. Since 1996, we have earned the trust and respect of thousands of homeowners throughout Orange County by providing honest, factory-direct pricing, unparalleled service, and exceptional workmanship. We are proud to be a longstanding Carrier Factory Authorized Dealer and the only 12-time winner of the prestigious Carrier President's Award.

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Customer Reviews


I chose McMaster heating & Air last year after trying several disappointing companies. I found them honest and reliable. They were very helpful in getting our old AC working (before a terrible heat wave hit) as they couldn't fit us in for our installation for a couple of weeks. All the guys are clean, and professional. I trust this company and the Carrier product they sell. This AC unit is so quiet and efficient. We are happy!

Janet B., Costa Mesa, CA Via Yelp Testimonial

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im very impressed by ron (the owner)! I called him 2 days ago and asked for him to come out to install our AC unit and do all the finishing touches for our home (so that we can move in on time) and even with his busy schedule he was able to pull through within 1 day!! They are extremely professional and do their job in a timely manner! Thanks again Ron!

Amy E., Irvine, CA Via Yelp Testimonial

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We are very happy with McMaster Heating and A/C. The guys showed up on time, with masks, booties and tarps to protect my floor. I really appreciated them respecting and caring enough to be careful and safe. I am extremely particular but couldn't find a thing to complain about even if I tried. They were very professional, polite, work fast, extremely efficient and did a wonderful job with installation.

M J., Rancho Palos Verdes, CA Via Yelp Testimonial

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Award-Winning Carrier Factory Authorized Dealer
Serving Orange County Since 1996

We specialize in providing Orange County homeowners with high-performance air conditioners and indoor air quality products from Carrier, the inventor of the modern air conditioner and today's leader in innovative HVAC technology. As a preferred Carrier Factory Authorized Dealer, we offer factory-direct pricing on their Infinity®, Performance®, and Comfort® lines of air conditioners, air purifiers, humidifiers, indoor air quality products, and traditional and smart thermostats. Known for being extremely energy-efficient, quiet, and durable, Carrier products consistently receive high SEER ratings and excellent customer reviews. For extra peace of mind, every Carrier system is backed by a 10-year parts limited warranty and comes with a 100% satisfaction guarantee for one full year.


Custom Designed, Whole-Home Air Conditioning & Cooling System Solutions

At McMaster Heating & Air Conditioning, we utilize a whole-home approach to air conditioning system design based on each homeowner's specific requirements. Our detailed process begins with a thorough evaluation of your current HVAC system's performance, including energy efficiency ratings, humidity levels, temperature control, noise reduction, and utility costs. We then customize a new or replacement system according to your ideal indoor comfort preferences, air quality needs, and budget. When necessary, we can also perform benchmarking load calculations and leakage testing to ensure that your system's equipment is correctly sized for maximum efficiency and cost savings. We always work with our clients to help them find the most cost-effective solution and offer special financing options with approved credit.

Every air conditioning system we sell also comes with an AHRI Efficiency Certificate that includes an exact efficiency rating for your specific combination of HVAC equipment.

Personalized Customer Service & Expert Installations from
Highly Trained, NATE-Certified Technicians

When you call McMaster Heating & Air Conditioning, you can trust that we will go out of our way to ensure that your air conditioning installation proceeds smoothly, from the initial consultation, estimate, and purchase to scheduling, installation, system testing, and final inspections. All of our experienced estimators and installers attend ongoing factory training on the latest advancements in HVAC technology. We use the industry's best practices and state-of-the-art diagnostic tools and equipment on every job and take great care to be respectful of your home and property. Once your new system is installed, we will provide you with guidance for properly operating your new system, thermostat, and equipment. As an added benefit, all clients who utilize our installation services also receive priority scheduling on future repairs and service calls from McMaster Heating & Air Conditioning.

Call to Schedule An On-Site Consultation Anywhere in Irvine, Newport Beach, Mission Viejo, Rancho Santa Margarita, and Surrounding Areas

Give us a call today to book a free on-site air conditioner installation consultation and estimate in Irvine, Fullerton, Anaheim, Yorba Linda, Brea, Orange, and surrounding cities throughout Orange County. We stay up to date with all available manufacturer and utility rebates that can help our customers maximize their budgets and offer financing with approved credit through our relationship with Wells Fargo Bank, N.A.

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
Air conditioning installation in Orange County, CA

Recent Projects

Our experienced team installed new Carrier A/C units for an Orange County residence. Our whole-home approach to air conditioning system design ensures that every customer receives the best equipment for their indoor comfort and budget.

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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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