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Laguna Niguel’s Best Choice for Reliable Heating &
Air Conditioning Services

McMaster Heating & Air is a licensed, full-service HVAC company that provides reliable heating and air conditioning services to Laguna Niguel residents and businesses. Since 1996, we’ve earned a loyal customer base, which is reflected in our positive online reviews. We are known throughout the local area for our expertly performed air conditioning and heating sales, installation, repairs, and maintenance services. We also offer an unbeatable value on home performance testing, indoor air quality solutions, ventilation systems, energy efficiency upgrades, HVAC retrofitting for tenant improvements and remodels, and ductless mini-split system installation, maintenance, and repairs.

Reasons to Choose McMaster Heating & Air

Carrier Factory Authorized Dealer in Orange County Award-Winning Carrier Factory Authorized Dealer
Dedicated to Complete Customer Satisfaction Thousands 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
Comprehensive 30-Point Inspection with Every Tune-Up Solutions Customized for Each Client’s Unique Needs & Budget
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

We’re Proud to Be Laguna Niguel’s Preferred
Carrier Factory Authorized Dealer

McMaster Heating & Air is an award-winning Carrier Factory Authorized Dealer with extensive knowledge of their commercial and home air conditioning, heating, and ventilation systems, including furnaces, heat pumps, rooftop units, thermostats, ductless mini-splits, and air purifiers. In addition to having factory-direct access to their full line of Infinity®, Performance®, and Comfort® lines, we also have a large local inventory of Carrier replacement parts. When you choose to work with a Carrier dealer, you can trust that you are working with the best of the best. As a 10-time winner of Carrier’s President’s Award, our team of skilled experts has demonstrated our commitment to customer satisfaction, business management, and operational excellence.

Shop Our Carrier Product Catalog

Commercial Heating & Air Conditioning Design, Installation, Replacement & Tenant Improvements In or Near Laguna Niguel

Over the years, we’ve met the commercial HVAC needs of clients like 7-Up Bottling Company, Jurgens, and Sunkist, as well local area warehouses, churches, schools, manufacturing plants, industrial facilities, retail stores, offices, and more.

No matter the size of the business or the scope of the project, our commercial and industrial clients can expect to receive superior quality workmanship that is completed on time and within budget.

Our comprehensive commercial heating and air conditioning services include HVAC retrofits, energy-efficiency updates, tenant improvements, custom fan coil unit installation, sheet metal ducting and design, and air purification system installation. We provide prompt repairs and have a service technician on call 24/7 to respond to emergencies and prevent unnecessary downtime for your business. To help prevent system failure, we also offer cost-effective quarterly, biannual, or monthly maintenance plans. To show our gratitude to our clients who choose us for their hvac system installation, we provide priority scheduling for service appointments.

Laguna Niguel’s Indoor Air Quality Experts

Whether you’re interested in learning more about whole-home air purification systems or a hospital-grade air scrubber equipped with HEPA filters, you can count on the indoor air quality specialists at McMaster Heating & Air to find the appropriate air filtration solution for your specific needs and budget.

Commercial Air Scrubbers - Portable Filtration System

Commercial Air Scrubbers

A portable filtration system that does not require ductwork, the Carrier OptiClean™ rolls easily into any room and plugs into a standard electrical outlet to quickly improve indoor air quality (IAQ) in schools, dental offices, hospitals, and other commercial facilities. It can be operated in two modes: air scrubber or negative air machine.

View Carrier Product Catalog

Carrier’s Indoor Air Purifiers, Filtration Systems Laguna Niguel

Whole-Home Air Purification Systems

We offer residential clients a range of whole-house or spot ventilation systems, air filtration systems, and air purifiers like Carrier’s Infinity™ Air Purifier® DGAPA (MERV 15).

One of the most effective air purifiers on the market today, the Infinity DGAPA Air Purifier works silently with your HVAC system to make the air you breathe healthier. It uses Captures & Kills™ technology to trap up to 95% of particles such as pollen, animal dander, bacteria, and other pollutants.

Click Here to Read More About Our Air Purification & Ventilation Solutions

Heating and Air Conditioning Repairs & Service for
All Major Brands of HVAC Systems

McMaster Heating & Air is prepared to handle heating and air conditioning repair requests anywhere in Laguna Niguel. Our highly trained, NATE-certified technicians stay up to date with the industry’s latest technology and best practices so that they can accurately troubleshoot and diagnose HVAC issues, no matter the size or difficulty of the job or the make and model of your equipment. We will never try to sell you a product you don’t need. With fully-stocked service vehicles and access to a large local inventory of replacement parts, our technicians will always go above and beyond to get your existing system back up and running. We will only recommend replacement if we believe it is absolutely necessary, or it’s the most cost-effective option. If system replacement is required, we’ll walk you through your options, identify opportunities to save you money, and deliver lasting results.

We Service All Major Makes & Models of HVAC Equipment

  • Carrier
  • Bryant
  • Rheem
  • York
  • American Standard
  • Fujitsu
  • Trane
  • Mitsubishi Electric
  • Daikin
  • Goodman
  • Lennox
  • And more!

Call to Schedule Preventative Maintenance and Seasonal AC/Furnace Tune-ups Anywhere in Laguna Niguel, CA

At McMaster Heating & Air, we offer cost-effective preventative maintenance services to ensure our Laguna Niguel customers enjoy reliable year-round comfort. Furnace and AC tune-ups can be scheduled as a standalone service or as part of our preventative maintenance program. For our commercial maintenance members, we offer convenient scheduling of biannual, quarterly, or monthly maintenance visits. For residential clients, we’ll typically recommend scheduling an AC tune-up in the spring and a furnace tune-up in the fall.


We Offer Free In-Home Estimates for New Installations


Click HERE to see all offers and rebates.

Customer Reviews

McMaster Heating & Air Conditioning Angi Reviews

McMaster Heating & Air Conditioning

4.9 Star Rated Angi Reviews 4.9 Stars - Based on 53 User Reviews
McMaster Heating & Air Conditioning Google Reviews

McMaster Heating & Air Conditioning

Google 4.9 Star Rating Reviews 4.9 Stars - Based on 70 User Reviews
McMaster Heating & Air Conditioning Yelp Reviews

McMaster Heating & Air Conditioning

4.6 Star Average Rating Yelp 4.6 Stars - Based on 88 User Reviews


I proactively decided it was time to replace my 30+ year old HVAC system. I did the research and obtained bids from 4 separate companies. I am kind of an analytical person so I put together a weighted spreadsheet with all the factors that are important to me. McMaster was the company that surfaced as the best choice for me, and I have to say that although price was important, they were not the lowest priced option. Today my installation took place and I couldn't have been happier. The crew arrived on time, they were in uniform (employees). They were courteous, considerate, clean, professional and quiet. They were not disruptive to me or my neighbors and they worked the entire time - no lunch break. I really couldn't have asked for a better experience.

theresa f., Laguna Niguel, CA Via Yelp Testimonial


We uSed McMaster to replace our old FAU - A/C unit on our home in Portola Hills several years ago. We were very happy with the service and equipment, and loved how quiet and energy efficient our new unit was.

We recently purchased a home in need of major renovation in Laguna Niguel. James, Anthony, and crew were extremely helpful - we relocated the unit from the garage to the attic, put all new ducting throughout the home, and installed a new a/c unit on the side of the house. . .

Jan H., Laguna Niguel, CA Via Yelp Testimonial

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 12 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
  • 2022 Carrier President's Award Winner 2022
  • 2022 Carrier President's Award Winner 2024


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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