Johnstone Supply
Avondale, AZ HVAC · #10 of 9 · 70+ yrs
At a glance
- Google rating
- 4.3★ from 30+ reviews
- In business
- 70+ years
- Service area
- Avondale, AZ
Overview
Johnstone Supply operates as a wholesale distributor serving professional HVACR contractors across the United States. This location in Avondale provides specialized repair parts and unitary equipment for licensed trade professionals. Operating for over 70 years, the company maintains a massive network of locations to support regional cooling infrastructure. Homeowners in the Phoenix metro area should note that this facility strictly serves industry technicians rather than the general public.
Johnstone Supply functions as a wholesale distributor of HVACR equipment and replacement parts for professional contractors in Avondale. The company maintains a 70-year history of supplying technical components to the trade industry. With over 450 locations across North America, the business provides a centralized resource for specialized HVACR inventory. This location serves professional technicians throughout Arizona.
How Johnstone Supply compares to the Avondale average
| Signal | Johnstone Supply | Avondale avg | Delta |
|---|---|---|---|
| Google rating | 4.3★ | 4.9★ | -0.6 vs avg |
| Review volume | 30+ | 260+ | -232 vs avg |
| Years in business | 70+ | 12+ | +58 vs avg |
What customers say
"This store I can not say enough how great this store is!! I try not to anywhere else for my HVAC needs but this store Thanks to all the amazing employees that are allways ready to go the extra mile to get you the correct part for any of your projects. Blair, Rick, Mike, Anthony, and Jose you guys keep up the GREAT work we are going to need you this summer."
— Andre'S Air Conditioning And Heating · Apr 12, 2025 · Google Reviews"Amazing customer service, always a great experience, love Blair, shoot even Rick, but the Mexican guy Mike, this guy honestly always has a smile on his face, always eager to help, super great sense of humor as well. Mike, I’m going to have to take you to City Wok some time."
— Joshua Nepa · Aug 25, 2023 · Google Reviews"Overpriced, low inventory. I see why they're not used much in the industry."
— Jorge Hernandez · Sep 26, 2025 · Google Reviews"This place was awful. They wouldn't sell me a simple capacitor while my ac was out in the AZ summer. The guy behind the counter belittled me when I asked for the parts I needed, because I wasn't working for an HVAC company. I went to Ferguson instead! Great service, very respectful! Johnstone was a complete bust. They wanted me to get heat stroke!"
— Robert Egan · Apr 14, 2023 · Google Reviews"Beware not open to the public. Website has a very vague sales policy link at the bottom of the page requiring in small print requiring ID?? Nor does the entrance say not open to the public. I drove 36 miles for a capacitor, he put it on the counter and asked what company I'm with. Swiftly took it back when I said I wasn't. Setting record temp today June 20th 2017 of 120 degrees. AC went out last night, pleaded with…"
— Jet Fixer 6 · Jul 31, 2018 · Google ReviewsPros & cons
- Long-established (70+ years in business)
- Mixed customer sentiment (score 55/100)
Common complaints
Surfaced from negative-leaning customer reviews on Google / Yelp / BBB. Not editorial commentary.
- Overpriced, low inventory. I see why they're not used much in the industry.
- This place was awful. They wouldn't sell me a simple capacitor while my ac was out in the AZ summer. The guy behind the counter belittled me when I asked for the parts I needed, because I wasn't worki…
- Beware not open to the public. Website has a very vague sales policy link at the bottom of the page requiring in small print requiring ID?? Nor does the entrance say not open to the public. I drove 3…
When to choose them — and when to consider alternatives
- You value a long-tenured local operator (70+ years in business)
- Reports of not open to public or poor customer service would be a deal-breaker for you
- Reports of limited inventory would be a deal-breaker for you
- You prefer a provider with hundreds of customer reviews
- You want a BBB-rated firm specifically
Service area
Avondale, AZ home
Contact & hours
| Monday | 7:00 AM – 5:00 PM |
|---|---|
| Tuesday | 7:00 AM – 5:00 PM |
| Wednesday | 7:00 AM – 5:00 PM |
| Thursday | 7:00 AM – 5:00 PM |
| Friday | 7:00 AM – 5:00 PM |
| Saturday | 8:00 AM – 12:00 PM |
| Sunday | Closed |
Frequently asked questions
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What is the Vouched Score for Johnstone Supply?
How long has Johnstone Supply been in business?
What does HVAC service typically cost when working with a Avondale, AZ provider like Johnstone Supply?
Compare with nearby providers
| Provider | Vouched | Years | BBB | Yelp | Our picks | |
|---|---|---|---|---|---|---|
Johnstone Supply (this company) |
— | 4.3★ (30+) | 70+ | — | — | — |
| 68/100 | 5.0★ (55+) | 1+ | — | — | — | |
| 75/100 | 4.8★ (110+) | 8+ | A+ ✓ | — | — | |
| 68/100 | 4.5★ (140+) | 30+ | — | — | — |
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Profile last updated June 11, 2026.