Johnstone Supply
Sparks, NV HVAC · #5 of 4
At a glance
- Google rating
- 4.8★ from 15+ reviews
- Services
- 4 HVAC services
- Service area
- Sparks, NV
- Phone
- +1-775-398-4750
Overview
Johnstone Supply lists Mini-Split Systems as a site specialization. The store notes same-day service availability. The inventory page names modern refrigerants like R32 and R454B. Johnstone Supply catalogs smart thermostats and IAQ gear for local retrofits.
Wholesale HVAC supplier near Sparks, NV, focused on mini-split and IAQ equipment. Mini-Split Systems are listed prominently on the store page. Same-day service is advertised on the Sparks store listing. Product pages list modern refrigerants such as R32 and R454B.
Vouched Score breakdown — 57/100
Sparks, NV HVAC average is 80/100. Ranks #5 of 4 listed HVAC providers in Sparks, NV.
Composite of public-record signals (BBB, license records), customer review signals (Google, Yelp), and editorial assessment of provider profile. See full methodology →
How Johnstone Supply compares to the Sparks average
| Signal | Johnstone Supply | Sparks avg | Delta |
|---|---|---|---|
| Vouched Score | 57/100 | 80/100 | -22 vs avg |
| Google rating | 4.8★ | 4.8★ | matches city average |
| Review volume | 15+ | 790+ | -774 vs avg |
Pros & cons
Self-reported on their website — not independently verified.
- Emergency response: same-day
- Smaller review history (16 Google reviews)
When to choose them — and when to consider alternatives
- You prefer a provider with hundreds of customer reviews
- You want a BBB-rated firm specifically
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.
- Thermostat Installation
- Emergency HVAC Service — After-hours emergency response for no-cool and no-heat calls.
Service area
Sparks, NV home
Guarantees & credentials
- Licensed
Sourced from the provider's own website. We surface these as published; we do not independently verify each license or warranty.
Contact & hours
Frequently asked questions
What are the pros of Johnstone Supply?
What are the cons of Johnstone Supply?
When should I consider alternatives to 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 Sparks, NV provider like Johnstone Supply?
Does Johnstone Supply do Mini-Split Systems in Sparks, NV?
Does Johnstone Supply do Indoor Air Quality in Sparks, NV?
Does Johnstone Supply do Thermostat Installation in Sparks, NV?
Does Johnstone Supply do Emergency HVAC Service in Sparks, NV?
Compare with nearby providers
| Provider | Vouched | Years | BBB | Yelp | Our picks | |
|---|---|---|---|---|---|---|
Johnstone Supply (this company) |
57/100 | 4.8★ (15+) | — | — | — | — |
| 85/100 | 4.8★ (1,535+) | 30+ | — | — | Best for AC Repair | |
| 85/100 | 4.9★ (1,360+) | 80+ | — | — | Best for New System Installation Best for Heat Pumps Best for Indoor Air Quality |
|
| 73/100 | 4.8★ (165+) | 26+ | — | — | — |
Listed in
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Profile last updated July 17, 2026.