Johnstone Supply
Avondale, AZ Heat Pump Installation · #7 of 6 · 70+ yrs
At a glance
- Google rating
- 4.3★ from 30+ reviews
- In business
- 70+ years
- Service area
- Avondale, AZ + 1 nearby
Overview
Johnstone Supply lists A2L refrigerant resources and A2L certification materials on its site. The company notes over 70 years in operation. Avondale's hot summers drive strong demand for HVAC parts and quick pickup. Reviewers describe helpful counter staff and parts knowledge at this store.
Wholesale HVAC distributor in Avondale, AZ serving contractors with parts and supplies. The company notes over 70 years in operation. A2L refrigerant resources are listed on the store website.
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+ | 385+ | -354 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 50/100)
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 limited inventory would be a deal-breaker for you
- Reports of restricted sales policy 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 · Pump Install 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
What are the pros of Johnstone Supply?
What are the cons of Johnstone Supply?
When should I choose Johnstone Supply?
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What is the Vouched Score for Johnstone Supply?
How long has Johnstone Supply been in business?
What does heat pump install 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+ | — | — | — |
| 74/100 | 5.0★ (55+) | 10+ | — | — | — | |
| 71/100 | 4.8★ (110+) | 8+ | A+ ✓ | — | — | |
| 81/100 | 5.0★ (205+) | 8+ | — | — | — |
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Profile last updated June 22, 2026.