Overview
Master Mechanical, Inc. operates as an authorized Rheem installer serving the Northern Arizona region. Founded in 1997, the company maintains a presence in Flagstaff to address local climate needs. Technicians provide 24/7 emergency support for residential and commercial HVACR systems. Their team advertises competitive pricing and offers free estimates for new equipment installations. Homeowners in Flagstaff often rely on these services to manage high-altitude temperature fluctuations throughout the changing seasons.
Master Mechanical, Inc. provides comprehensive HVACR services to homeowners and businesses throughout the Flagstaff area. This family-owned contractor advertises status as a certified Rheem installer for all heating and cooling equipment. Operations began in 1997, and the company reports 24/7 availability for urgent system repairs. They offer free estimates for new installations and maintain a local office on East Empire Avenue to support Northern Arizona residents.
vs. Flagstaff average
| Signal | Master Mechanical, Inc. | Flagstaff avg | Delta |
|---|---|---|---|
| Google rating | 3.6★ | 4.7★ | -1.1 vs avg |
| Review volume | 45+ | 180+ | -138 vs avg |
| Years in business | 29+ | 30+ | -1 vs avg |
What customers say
"My experience with this company has been incredibly frustrating. In short, I do not recommend them and would not use them again for installing new equipment. Details: Our house did not have a/c and our upper level was getting pretty toasty during the summer. After getting six quotes, we went with Master Mechanical. Our furnace covering the upstairs was over 30 years old so we decided to replace that at the same tim…"
— Gregory Neville · Jan 24, 2026 · Google Reviews"AVOID! The first time we used these guys they put in the wrong belt and left a bunch of exposed and grounded wires around the unit. Then they showed up two more times to “diagnose” their mistake. Which they tried to charge us for both visits where nothing got fixed and they created the problem. The final straw was when I got a second quote and it turns out they were never even replacing the filters or doing any of t…"
— Marcus E · Sep 16, 2025 · Google Reviews"Master Mechanical provides excellent service. Michael addressed our concern promptly. We are so pleased, thank you so much."
— Cathy Harper · Oct 27, 2025 · Google Reviews"It became clear that I needed to replace my 30+ y.o. furnace ASAP so I asked my neighbor, who recently replaced their unit, who they used. She recommended Master Mechanical and gave me contact info for Justin who was super prompt in every reply. We agreed upon a day for him to come look at my existing unit and work up a quote, which was cheaper than a competitor I had already spoken with, and was able to arrange the…"
— Joyce Binnie · Oct 21, 2024 · Google Reviews"The tech Connor was very polite and professional. HOWEVER! How are you as a company going to have someone on call that doesn't have the necessary tools and items to handle emergency calls? My one unit appears to possibly have a leak but the tech was in his personal vehicle and didn't have refrigerant. So now i have to contact another company and hope that they are able to fix my AC. In the meantime I have to hope my…"
— Joseph Culwell · Aug 3, 2024 · Google ReviewsPros & cons
- Long-established (29+ years in business)
- Mixed customer sentiment (score 45/100)
Common complaints
Surfaced from negative-leaning customer reviews on Google / Yelp / BBB. Not editorial commentary.
- My experience with this company has been incredibly frustrating. In short, I do not recommend them and would not use them again for installing new equipment. Details: Our house did not have a/c and o…
- AVOID! The first time we used these guys they put in the wrong belt and left a bunch of exposed and grounded wires around the unit. Then they showed up two more times to “diagnose” their mistake. Whic…
- The tech Connor was very polite and professional. HOWEVER! How are you as a company going to have someone on call that doesn't have the necessary tools and items to handle emergency calls? My one unit…
When to choose them
- You want manufacturer-warranty installation work
- You value a long-tenured local operator (29+ years in business)
- You want NATE-certified technicians
Services
- AC Repair — Diagnostics and repair of central air conditioning systems — refrigerant leaks, capacitor and contactor failures, condenser fan motors, and thermostat issues.
- Furnace Repair — Repair of gas and electric furnaces — ignition systems, blower motors, heat exchangers, control boards, and flame sensors.
- HVAC Installation — Full HVAC system installation including indoor and outdoor equipment, ductwork tie-in, and refrigerant work.
- Emergency HVAC Service — After-hours emergency response for no-cool and no-heat calls.
Service area
Contact & hours
| Daily | Open 24/7 |
|---|
Frequently asked questions
What are the pros of Master Mechanical, Inc.?
What are the cons of Master Mechanical, Inc.?
When should I choose Master Mechanical, Inc.?
What is the Vouched Score for Master Mechanical, Inc.?
How long has Master Mechanical, Inc. been in business?
How can I contact Master Mechanical, Inc.?
What does HVAC service typically cost when working with a Flagstaff, AZ provider like Master Mechanical, Inc.?
Does Master Mechanical, Inc. do AC Repair in Flagstaff, AZ?
Does Master Mechanical, Inc. do Furnace Repair in Flagstaff, AZ?
Does Master Mechanical, Inc. do HVAC Installation in Flagstaff, AZ?
Compare with nearby providers
| Provider | Vouched | Years | |
|---|---|---|---|
Master Mechanical, Inc. (this company) |
— | 3.6★ (45+) | 29+ |
Comfort Systems of Arizona LLC ⭐ Best for Heat Pumps · ⭐ Best for Boiler Service |
78/100 | 4.9★ (50+) | 17+ |
| 80/100 | 4.9★ (40+) | 16+ | |
| 79/100 | 4.9★ (860+) | 27+ |
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Profile last updated May 16, 2026.