The Best Choice for Expert Heating and Air Conditioning Services in Irvine, Newport Beach, Mission Viejo & Surrounding Areas
McMaster Heating & Air Conditioning is Orange County’s preferred choice for high-quality hvac services. Over the last 26 years, we have served thousands of residential, commercial, and industrial customers throughout Irvine, Newport Beach, Mission Viejo, Rancho Santa Margarita, Laguna Niguel, Yorba Linda, Anaheim, and surrounding cities and become known for consistently delivering superior results. Our honest business practices, depth of industry knowledge, exceptional workmanship, and unwavering commitment to customer satisfaction have earned us several prestigious awards as well as an average rating of 4.5 to 5 stars from more than 150 reviews.
“At McMaster Heating & Air, we’re dedicated to delivering maximum indoor comfort at the best price.”
Ron McMaster, Owner/Founder
When You Want Your Job Done Right, Call McMaster Heating & Air
The team at McMaster Heating & Air Conditioning consists of highly-trained, seasoned hvac professionals. They are certified by NATE and receive ongoing training on the latest heating and air conditioning technologies and the leading best practices for installation, repair, and maintenance services. Because our installers all have between 15 and 30 years of experience and almost all of our service techs have more than ten years of experience, our customers can always depend on us to dispatch technicians who will know how to get the job done right.
CALL MCMASTER HEATING & AIR CONDITIONING
Comprehensive Heating & Air Conditioning Services
Whether you are looking to extend the life of your current hvac equipment, install a high-efficiency air conditioning system, or fix a furnace that suddenly stopped working, you can rely on McMaster Heating & Air Conditioning to meet all of your heating and cooling needs.
Residential HVAC Services
- Air Conditioner Installation
- Air Conditioner Replacement
- Air Conditioner Tune-Up/Maintenance
- Air Conditioner Repair & Service
- Heater/Furnace Installation
- Heater/Furnace Replacement
- Heater/Furnace Tune-Up/Maintenance
- Heater/Furnace Repair & Service
- Energy Efficiency Upgrades
- Home Performance Testing
- Whole-Home Air Purification
- Whole-Home Ventilation
- Ductless Mini-Split System Repair/Service, Installation, Replacement & Maintenance
Commercial/Industrial (Up to 40 Tons) HVAC Services
- HVAC System Design & Installation, including AHRI Efficiency Certificate
- Ventilation System Design & Installation
- Air Purification System Installation
- HVAC Equipment Replacement & Repairs
- HVAC Retrofitting for Tenant Improvements & Remodels
- Custom Fan Coil Unit Installation
- Sheet Metal Ducting Design & Installation
- HVAC System Maintenance - Biannually, Quarterly, Monthly
- Ductless Mini-Split Design & Installation, Repair & Maintenance
SCHEDULE AN APPOINTMENT TODAY

Your Local HVAC Experts
One of Orange County’s Leading Carrier Factory Authorized Dealers
McMaster Heating and Air Conditioning is proud to be one of Orange County’s leading Carrier Factory Authorized Dealers. HVAC contractors who earn the Carrier Factory Authorized Dealer distinction have proven their commitment to excellence by meeting the following requirements:
- Commitment to Delivering Exceptional Comfort & Value
- 100% Customer Satisfaction Guarantee
- Exemplary Customer Satisfaction Scores & Ratings
- Ongoing Factory Training
- Employ NATE-Certified Technicians
- Proper Local Licenses & Insurance Coverage
Less than 3% of Carrier dealers nationwide achieve and maintain the “Factory Authorized Dealer” status. Not only has McMaster Heating & Air met the strict qualifications to maintain the Carrier Factory Authorized Dealer title year after year, but McMaster has also won Carrier’s most prestigious award, the President’s Award, 10 times over the last 12 years. The Carrier President’s Award acknowledges Carrier dealers who exemplify exceptional leadership in HVAC expertise, customer satisfaction, business management, and operational excellence. The President’s Award essentially recognizes the very best of the best.
McMaster is the only dealer in Orange County to receive
the prestigious Carrier President's Award 10 times
2010
2011
2012
2013
2014
2015
2016
2017
2019
2020
VIEW OUR CARRIER PRODUCT CATALOG