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McMaster Heating & Air Conditioning

Award-Winning, Full-Service Heating & Air Conditioning Company in Irvine, CA

Irvine’s Best Value for Heating and Air Conditioning Services

McMaster Heating & Air is Irvine’s preferred choice for high-quality, expertly performed heating and air conditioning services. We are a locally and family-owned HVAC company that has served thousands of residential, commercial, and industrial clients since 1996. Over the last 25 years, we have become known for our extremely knowledgeable service technicians, reliable workmanship, and commitment to delivering exceptional comfort and value. We are an award-winning Carrier Factory Authorized Dealer and have maintained an A+ Rating with the Better Business Bureau for our honest business practices and personalized customer service.

Give us a call today! We’re open Monday through Friday, from 8:00 a.m. to 5:00 p.m and Saturday 9:00 a.m. to 2:00 p.m. We also have a service technician on-call for after-hours emergencies. We also welcome local area customers to visit our Irvine office, which is well-stocked with air filters, replacement parts, indoor air quality products, and more.

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For High-Quality Heating & Air Conditioning Installation,
Turn to Irvine’s Local Carrier Experts

Carrier is the inventor of modern air conditioning and is well-known for its innovative, high-efficiency HVAC technology, which is why we are proud to be a Carrier Factory Authorized Dealer and a Carrier President’s Award winner ten years in a row. At McMaster Heating & Air, we are fully qualified to install Carrier’s complete line of heating and cooling equipment, including their air conditioners, heat pumps, furnaces, ductless mini-split systems, rooftop units, air purification products, ventilation systems, thermostats, and commercial equipment (up to 40 tons).

Additionally, we can assist you in choosing the best financing options for your heating or air conditioning project. We stay up-to-date on the latest rebates for residential and commercial cooling and energy upgrades and offer flexible financing options on qualifying purchases through Wells Fargo Bank, N.A.* We also pass on any special pricing we receive as an authorized dealer as savings to you.

When you choose to have your new HVAC system installed by McMaster Heating & Air, you can rest assured knowing that your investment is backed with a 100% customer satisfaction guarantee for one year and a 10-year parts limited warranty. Further, to show our gratitude for your purchase, we will offer you priority same-day or next-day service to keep your new system running at optimal performance.


*Subject to credit approval.

At McMaster Heating & Air, Customer Satisfaction Is Our #1 Priority

Reasons to Choose McMaster Heating & Air

Carrier Factory Authorized Dealer in Orange County Award-Winning Carrier Factory Authorized Dealer
Dedicated to Complete Customer Satisfaction 1,000s of Satisfied Customers
Locally Owned HVAC Company Since 1996 Locally-Owned, Licensed HVAC Company
We Employee NATE Certified Technicians We Employ NATE-Certified Technicians
Energy Efficiency Experts Efficiency Rating Guaranteed for All New Installs
Expert HVAC Service & Repair Company Expert Service and Repair for All Makes & Models
Fast HVAC Service Within 24 Hours Fast Response Times - Often Within 24 Hours
Save Money with Special Offers & Rebates Up to Date with All Available HVAC-Related Rebates
Industry-Leading Parts & Labor Warranties Industry-Leading Warranties for New Installs & Repairs

Call to Schedule a Free New-Install Estimate

Fast, Reliable Furnace and Air Conditioner Repairs In & Near Irvine, CA

McMaster Heating & Air is Irvine’s go-to source for prompt, reliable heater/furnace and AC repairs. Our experienced service technicians are certified by North American Technician Excellence (NATE) and receive ongoing training to ensure they are up-to-speed with the latest industry standards, best practices, and technological advancements. Using cutting-edge diagnostic equipment, we are able to accurately diagnose and repair all major HVAC makes and models, including but not limited to Carrier, Bryant, Rheem, York, American Standard, Fujitsu, Trane, Mitsubishi Electric, Daikin, Goodman, Lennox, and more.

HVAC Preventative Maintenance and Multipoint Furnace/AC Tune-Up Services Available to Irvine Homes & Businesses

We offer Irvine residents and business owners comprehensive 30-point furnace and AC inspections to keep their heating and cooling equipment running its best. Keeping up with regularly scheduled HVAC maintenance appointments helps to lower the stress on your system, improve indoor air quality, reduce operating costs, and extend the life of your equipment. Preventative maintenance can also help us detect minor issues before they turn into major repairs.

Because we believe in the value of servicing your heating and air conditioning system at regular intervals, we offer our Irvine clients cost-effective maintenance agreements. These agreements include quarterly, biannual, or monthly tune-ups for commercial customers and twice-yearly tune-ups for residential customers. Members also receive priority scheduling. Give us a call today to learn more.

Irvine’s Best Choice for Commercial/Industrial
HVAC Services (Up to 40 Tons)

Our owner, Ron McMaster, has over 40 years of hands-on experience and specializes in commercial and industrial HVAC services, including but not limited to commercial system design and installation, ventilation and air purification system design and installation, equipment replacement and repairs, retrofitting for tenant improvements and remodels, custom fan coil unit installation, sheet metal ducting design and installation, preventative maintenance, and ductless mini-split system design, installation, and service. We always go above and beyond for our commercial clients, which is why we offer free on-site estimates to businesses in and near Irvine. We can also perform Manual J, S & D load calculations, when required, and issue an AHRI Efficiency Certificate with every system we sell or install. Call today to schedule an appointment. We can typically accommodate same-day or next-day repairs to keep downtime to a minimum.

Special Offers & Rebates

Click Here to View All Available Offers & Rebates

Customer Reviews

McMaster Heating & Air Conditioning Customer Lobby Reviews

McMaster Heating & Air Conditioning

4.9 Star Rated Customer Lobby Reviews 4.9 Stars - Based on 69 User Reviews
McMaster Heating & Air Conditioning Google Reviews

McMaster Heating & Air Conditioning

Google 4.9 Star Rating Reviews 4.9 Stars - Based on 49 User Reviews
McMaster Heating & Air Conditioning Yelp Reviews

McMaster Heating & Air Conditioning

4.9 Star Average Rating Yelp 4.5 Stars - Based on 57 User Reviews


I normally do not take the time to write reviews but felt compelled to do so after the professional outcome of my installed HVAC system by McMaster Heating and Air. Just yesterday, the Irvine City (HVAC) inspector complemented the workmanship. And that was similar with the third party HERS testing technician who stated that work that he has seen from McMaster has always been top notch. . .

Les H., Irvine, CA Via Yelp Testimonial


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


Absolutely, McMaster is a strong team, especial Ron! He is your decision maker who always think about his customer. I won't do other choices just trust them!!

Kay Y., Irvine, CA Via McMaster Heating & Air Conditioning Customer Lobby Reviews

Click Here to Read More Reviews

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

McMaster is the only dealer in Orange County to receive
the prestigious Carrier President's Award 10 times

  • 2010 Carrier President's Award Winner 2010
  • 2011 Carrier President's Award Winner 2011
  • 2012 Carrier President's Award Winner 2012
  • 2013 Carrier President's Award Winner 2013
  • 2014 Carrier President's Award Winner 2014
  • 2015 Carrier President's Award Winner 2015
  • 2016 Carrier President's Award Winner 2016
  • 2017 Carrier President's Award Winner 2017
  • 2019 Carrier President's Award Winner 2019
  • 2020 Carrier President's Award Winner 2020


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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