#1 HVAC Service Company in Phoenix, AZ

Your Heating & Cooling Experts in Phoenix & Surrounding Areas

Our Most Popular HVAC Services

Cooling

At Mountainside Air, we offer top-notch AC replacement services. We use our extensive training and experience to seamlessly install the best system for your needs.

Heating

We offer dependable furnace replacement services at Mountainside Air, using our expertise and reliability to recommend and install the best heating system for your home.

Ductless Mini-Splits

Mountainside Air guarantees satisfaction with our ductless mini-split setup, leveraging our proficiency to ensure the ideal climate control solution is expertly implemented.

Contact Us

About Mountainside Air

When you hire an HVAC contractor, you often face uncertainty about the quality and reliability of their services until the work is completed. With Mountainside Air, that uncertainty is eliminated. We’ve established a solid foundation of trust through our dedication to superior customer service and a personalized approach. These core values have earned us the loyalty of our customers, who return to us time and again because they know they are in good hands. Our commitment to excellence is evident in every interaction and every service we provide, ensuring that you feel confident in your decision to choose us.

Mountainside Air is more than just an HVAC company; we are a team of dedicated professionals who are passionate about delivering the highest quality service. Our business is veteran-owned, reflecting a commitment to discipline, integrity, and a sense of duty. We proudly offer a 10% discount to active-duty military, veterans, and first responders as a token of our appreciation for their service. Additionally, we are deeply invested in our community, consistently seeking ways to give back and support local initiatives. This commitment to community and service excellence defines who we are and sets us apart in the industry.

Veteran Owned Business
Mountainside HVAC team photo

Why Choose Mountainside Air

At Mountainside Air, your satisfaction is our top priority, and we guarantee it 100%. We believe in transparency and integrity, which is why we provide written guarantees for our work. Our insistence on outstanding services and superior products is backed by numerous positive customer reviews that speak volumes about our dedication to quality. We make the process of booking an appointment as seamless as possible with our easy online scheduling system, ensuring that you can get the help you need when you need it without any hassle.

Our team consists of highly skilled, responsive, and helpful craftsmen who are always ready to tackle your HVAC challenges. Whether it’s a residential or commercial project, we approach every task with the same level of professionalism and expertise. We understand that HVAC issues can be stressful, which is why we strive to make the process as smooth and stress-free as possible. From the moment you contact us to the completion of the job, you can expect nothing but the best in terms of service, communication, and results. This commitment to excellence is what makes Mountainside Air the preferred choice for so many satisfied customers.

We’re a local, veteran-owned HVAC company committed to delivering personalized service and the small-business touch that keeps customers coming back. 

That’s Why We’re Arizona’s HVAC GOAT

Our Seven Guarantees

No Surprises Guarantee

Upfront transparency is important to us. Once the proposal has been accepted, the price quoted is the price you pay, even if the job entails more work than estimated.

Design Guarantee

We stand by our custom-designed HVAC systems for your home, assuring they perform exactly as needed. Should our tailored solutions not meet the unique needs of your home, we pledge to adjust or replace them at no additional cost, ensuring your comfort and satisfaction.

Apples to Apples Refund (Plus Some!)

We promise you will receive the best value for your investment. If you find a lower price on the same equipment, installation, guarantees, warranties, and procedures, we will refund the difference, plus $100! All we ask is that the comparison is apples to apples and you show us the lower price in writing.

Unexpected Damage Guarantee

Your property is protected during the installation. If any of your property is damaged, it will be repaired or replaced to your satisfaction.

Fixed Right Or It's Free Guarantee

When we come to your home to diagnose your system, we guarantee our diagnostic and repair is accurate. If we diagnose your system inaccurately, our diagnostic is complimentary.

Respect Guarantee

Our drug-free technicians are the best in skill, attitude and workmanship. Our experienced technicians will work neatly and diligently. They will be courteous and answer any questions or concerns you may have.

Lifetime Craftsmanship Guarantee

Your new system will be installed in compliance with local codes and construction standards, and the workmanship is warrantied for the life of the system.

We Service All Brands, But Specialize In

What Your Neighbors Are Saying About Us

John A.
It’s rare when a company impresses me. Mountainside air is one of the best. In a world filled with companies just trying to make a sale, this one actually only sells you what you need. I had them install an a/c unit last year and they were stellar. Looking at having them install my other unit. Always impressed with their interactions and integrity.
Matt M.
Mountainside air was a lifesaver! Our AC went out late Saturday night, and I called early Sunday morning to ask for help. They had a technician out to our home within an hour of our first call, and that technician was able to fix our AC and get us back up and running the same day. We are so grateful that we contacted mountainside air, and we highly recommend them to any family needing help with AC!!
Stacey S.
Had a concern on one of my units, called the team and they scheduled me for the next day as it was late at night. Steve came by and checked out the unit in question and said it is fine.Thanks Mountainside air for continued prompt and courteous service.
Life Is An Adventure
INCREDIBLE!! After receiving a quote for almost double what I ended up paying, I asked around & Mountainside Air came highly recommended as a reliable, trustworthy company. From the first call to the installation of three new units only four days later, the Mountainside Air team was AMAZING! Professional, great communication, a team of five for the one-day install and clean up! Now, it’s me recommending Mountainside Air! Thank you doesn’t say enough . . . from a very satisfied customer!!
Zak H.
These guys are great. Always do a thorough, honest job at a competitive price. I have them out twice a year to two different homes. They've done a full replacement for me as well as other work. They are my go-to AC company from here on out. Keep up the good work, guys.
Joel S.
I can’t say enough about how amazing the team is at Mountainside Air. They are knowledgeable, friendly, professional, on time, and know how to treat customers. I’ve been looking for an HVAC company for a while that can help me keep up my maintenance on my AC units, and I am thankful that I found them. Call them, and they will help! In this day and age, it’s hard to find people who are willing to do the right thing, and Mountainside Air is one of those people. Thank you, Steve and Tom, for saving me from the heat!
Deb C.
Mountainside Air has been great! They respond quickly, are knowledgeable, and courteous. I feel like I have an A/C company I can trust with them!
Elizabeth A.
I have been with this company for about three years, they are absolutely wonderful. Tom and his wife are a great team and will do whatever is in their hands to make sure you get the best service. Thank you guys.
M Koyama
I do not live in the US at this time and, so I was a bit worried about choosing a company to replace my AC/heater at my condo in Scottsdale. But from step one all went smooth and felt I could trust Mountainside Air. I Recommend them.

Most Popular Blog Posts