Review sentiment: 60/100
Overview
Johnstone Supply lists furnace parts and repair support for gas and oil furnaces. The store page lists combustion diagnostic tooling including combustion analyzers. Financing options are advertised for contractor purchases and larger jobs. The Waterloo location stocks heat-exchanger and inducer motor parts for local winter service needs.
Parts distributor focused on furnace and heat-exchanger components for repair work. Combustion diagnostic tooling, including combustion analyzers, is listed on the store page. Specializations list gas-valve and combustion work plus blower and inducer motor parts. Financing availability is advertised for larger parts or account purchases.
Pros & cons
Pros
Services offered (self-reported)
Cons
- Smaller review history (11 Google reviews)
- Mixed customer sentiment (score 60/100)
When to choose them
- You need to finance the work
Services
Service area
Waterloo, IAhome
Contact & hours
📞
🌐
✉️
📍
🕒
Call for hours or visit provider website for current hours
Frequently asked questions
What are the pros of Johnstone Supply?
Based on public records and customer reviews: Financing available.
What are the cons of Johnstone Supply?
Concerns flagged from public records and reviews: Smaller review history (11 Google reviews); Mixed customer sentiment (score 60/100).
When should I choose Johnstone Supply?
Choose them if: You need to finance the work.
What is the Vouched Score for Johnstone Supply?
30/100. Top contributing signals: Google Rating 73/100+ Review Sentiment 60/100, Google Review Count 29/100. 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 +1-319-233-0525. Address: 2661 Geraldine Rd, Waterloo, IA 50703, USA.
What does furnace repair service typically cost when working with a Waterloo, IA provider like Johnstone Supply?
Furnace service call / diagnostic fee typically runs $70–$185, and hot surface igniter replacement runs $140–$415 in Waterloo, 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 Furnace Repair in Waterloo, IA?
Yes. Johnstone Supply lists Furnace Repair among its services and serves Waterloo, IA and Repair Waterloo, IA. Call +1-319-233-0525 for a quote.
Compare with nearby providers
| Provider | Vouched | Years | |
|---|---|---|---|
Johnstone Supply (this company) |
— | 4.2★ (10+) | — |
| 67/100 | 4.5★ (50+) | 21+ | |
Air Services Heating, Air Conditioning and Controls ⭐ Most Transparent Pricing · ⭐ Best NATE-Certified Shop · ⭐ Best Manufacturer-Authorized Repair |
78/100 | 4.9★ (130+) | 10+ |
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Profile last updated July 27, 2026.