Johnstone Supply
Ames, IA HVAC · #4 of 3
Overview
Johnstone Supply lists dedicated mini-split systems and parts support. The product catalog notes R-32 and R-454B refrigerant options. The Pricing Model notes financing available for equipment purchases. Johnstone Cafferty Group's technical division provides specialist contractor support in-store.
Johnstone Supply is an HVAC wholesaler and parts supplier with mini-split system focus in Ames. Product listings note modern refrigerants, including R-32 and R-454B alternatives. Pricing information lists financing available for equipment and parts purchases.
Score breakdown
Ames, IA HVAC average is 75/100. Ranks #4 of 3 listed HVAC providers in Ames, IA.
Composite of public-record signals (BBB, license records), customer review signals (Google, Yelp), and editorial assessment of provider profile. See full methodology →
vs. Ames average
| Signal | Johnstone Supply | Ames avg | Delta |
|---|---|---|---|
| Vouched Score | 56/100 | 75/100 | -19 vs avg |
| Google rating | 4.8★ | 4.7★ | +0.1 vs avg |
| Review volume | 4 | 975+ | -974 vs avg |
Pros & cons
- Smaller review history (4 Google reviews)
When to choose them
- You need to finance the work
Services
- Mini-Split Systems — Mini-split installation and service — typically ductless, used for additions or zoned comfort.
- Indoor Air Quality — Indoor air-quality work: high-MERV filtration, UV systems, humidifiers/dehumidifiers, and duct sanitization.
- HVAC Installation — Full HVAC system installation including indoor and outdoor equipment, ductwork tie-in, and refrigerant work.
Service area
Contact & hours
Frequently asked questions
What are the pros of Johnstone Supply?
What are the cons of Johnstone Supply?
When should I choose Johnstone Supply?
What is the Vouched Score for Johnstone Supply?
How can I contact Johnstone Supply?
What does HVAC service typically cost when working with a Ames, IA provider like Johnstone Supply?
Does Johnstone Supply do Mini-Split Systems in Ames, IA?
Does Johnstone Supply do Indoor Air Quality in Ames, IA?
Does Johnstone Supply do HVAC Installation in Ames, IA?
Compare with nearby providers
| Provider | Vouched | Years | |
|---|---|---|---|
Johnstone Supply (this company) |
56/100 | 4.8★ (4) | — |
C&K Heating, Cooling, Plumbing & Gutters ⭐ Highest Vouched Score · ⭐ Best for Emergency / 24-Hour Service · ⭐ Best for Heat Pumps |
88/100 | 4.9★ (2,690+) | 58+ |
| 79/100 | 5.0★ (175+) | 5+ | |
| 59/100 | 4.3★ (60+) | 60+ |
Listed in
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Profile last updated July 27, 2026.