Johnstone Supply
Sioux City, IA HVAC
ⓘVouched Score is calculated from publicly available signals: Google rating & review count, Yelp rating, BBB grade, review sentiment, years in business, local search ranking, and provider website content. Not a guarantee of service quality.Embed this score
Review sentiment: 82/100
Overview
Johnstone Supply lists mini-split systems and ductless multi-zone inventory. The site lists modern refrigerants like R-32 and R-454B. The store page states a satisfaction guarantee for purchases. Sioux City winters make reliable furnace parts and service especially important.
Wholesale HVAC distributor and parts supplier focused on mini-split and commercial components. The site lists modern refrigerants such as R-32 and R-454B. Specializations include mini-split systems, indoor air quality gear, and smart thermostat components.
Score breakdown
Editorial Review
59
48%
Google Rating
90
18%
Local Search Rank
46
10%
Review Sentiment
82
16%
Review Volume
30
10%
Composite of public-record signals (BBB, license records), customer review signals (Google, Yelp), and editorial assessment of provider profile. See full methodology →
Pros & cons
Pros
Services offered (self-reported)
Cons
- Smaller review history (12 Google reviews)
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
Sioux City, IAhome
Contact & hours
📞
🌐
✉️
📍
🕒
Call for current hours at [phone]
Frequently asked questions
What are the pros of Johnstone Supply?
Based on public records and customer reviews: Satisfaction guarantee.
What are the cons of Johnstone Supply?
Concerns flagged from public records and reviews: Smaller review history (12 Google reviews).
What is the Vouched Score for Johnstone Supply?
64/100. Top contributing signals: Google Rating 90/100+ Review Sentiment 82/100, Llm Score 59/100. The score blends public-record signals (BBB, license records), customer review signals (Google, Yelp), and editorial assessment.
How can I contact Johnstone Supply?
Call Johnstone Supply at +1-712-277-2200. Address: 1401 Cunningham Dr, Sioux City, IA 51106, USA.
What does HVAC service typically cost when working with a Sioux City, IA provider like Johnstone Supply?
AC repair typically runs $135–$585, and full AC system replacement runs $4,950–$11,650 in Sioux City, Iowa. These are area-wide market estimates, not Johnstone Supply's quotes. For an exact price, request a written estimate from Johnstone Supply.
Does Johnstone Supply do Mini-Split Systems in Sioux City, IA?
Yes. Johnstone Supply lists Mini-Split Systems among its services and serves Sioux City, IA. Call +1-712-277-2200 for a quote.
Does Johnstone Supply do Indoor Air Quality in Sioux City, IA?
Yes. Johnstone Supply lists Indoor Air Quality among its services and serves Sioux City, IA. Call +1-712-277-2200 for a quote.
Does Johnstone Supply do Thermostat Installation in Sioux City, IA?
Yes. Johnstone Supply lists Thermostat Installation among its services and serves Sioux City, IA. Call +1-712-277-2200 for a quote.
Does Johnstone Supply do HVAC Installation in Sioux City, IA?
Yes. Johnstone Supply lists HVAC Installation among its services and serves Sioux City, IA. Call +1-712-277-2200 for a quote.
Compare with nearby providers
| Provider | Vouched | Years | |
|---|---|---|---|
Johnstone Supply (this company) |
64/100 | 4.7★ (10+) | — |
| 72/100 | 4.4★ (65+) | 50+ | |
Excel Comfort Inc ⭐ Best for AC Repair · ⭐ Best for Heat Pumps · ⭐ Best for Mini-Splits / Ductless |
86/100 | 4.9★ (200+) | 9+ |
Listed in
Explore more
Profile last updated July 27, 2026.