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HVAC Professional

HVAC Zack logoHVAC Zack

Oshawa, ON
Compare with similar hvac providers in Oshawa →
Emergency ServiceWSIBTSSA LicensedResponds to Reviews
+1 705-344-3124 Website(opens in new tab)
2 Credentials Verified
ProScore
5★ Google|1/4 Sources

This score reflects 85 verified reviews, licensed and verified.

How is this calculated?
Data verified: May 2026

About HVAC Zack

AI-generated summary from verified data sources

Based in Oshawa, HVAC Zack is a professional HVAC contractor serving the local area. They hold an impressive 5.0★ Google rating from 85 reviews. Their verified credentials include TSSA licensed (#000307331) and WSIB registered.

G
Google
5★ (85)
Rated on 1 independent platform
Government-licensed
WSIB coverage confirmed

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What Customers Say

AI analysis of 5+ verified Google reviews

Top Strengths

Exceptional workmanship and installation quality - multiple reviews specifically praised 'flawless workmanship,' 'thorough' service, and 'perfect from beginning to end' heat pump installations
Strong problem-solving and technical knowledge - reviews highlight 'innovating and problem solving practical solutions,' offering 'alternate solutions and advice,' and demonstrated expertise in system optimization
Honest pricing and transparency - customers consistently noted estimates were lower than competitors, actual costs came in under estimates, and appreciation for 'genuine' business practices with 'fair pricing'
heat pump installationprofessional and reliableresponsive and efficienthonest estimatesknowledgeable and thorough

Ratings Across Platforms

Aggregated from independent sources. Only ProScore shows all.

1 of 4 verified
G
Google
5/5
B
Review Site B
Not found
B
BBB
Not found
C
Review Site C
Not found
The ProScore Trust Score aggregates ratings from all verified sources, weighted by review volume, recency, and platform credibility.

Things to Know

Trusted Contractor

Meets ProScore verification standards for quality and reliability.

Highly Rated

Consistently rated 5 stars across 85+ Google reviews.

WSIB Verified

Workplace Safety and Insurance Board coverage confirmed — you're protected.

Google Review Breakdown

85 total
5
84
4
1
3
0
2
0
1
0

Featured Review

Verified review from Google

“

We recently had a heat pump installed in our garage along with a propane heat blower and we couldn't be happier with the results. The entire process was smooth and start to finish. Zack was knowledgable punctual and took the time. Page explain how everything works and how to get the best performance out of our system.<br><br>The heat pump keeps the space at a comfortable consistent temperature and a propane heater is a great back up for a really cold days. Insulation was clean and well organized

R
Robert Marleau
Google Review

Other top rated hvac in Oshawa

LFZ Heating & Cooling
72
Oshawa
4.9(174)
Active Climate Mechanical
70
Oshawa
5(47)
Pure Mechanical Group Inc.
66
Oshawa
4.5(17)
Max Comfort Heating & Cooling
63
Oshawa
4.9(72)

Homeowner Guides

How much does this service cost in Ontario?Red flags when hiringHVAC FAQs in OshawaView all guides →

Frequently Asked Questions

Is HVAC Zack licensed?
Yes, HVAC Zack holds a TSSA licence, verified by ProScore against the Technical Standards and Safety Authority database.
Does HVAC Zack have insurance?
Yes, HVAC Zack has verified WSIB (Workplace Safety and Insurance Board) coverage, which protects homeowners from liability if a worker is injured on the job.
What is HVAC Zack’s rating?
HVAC Zack has a ProScore Trust Score of 73/100 (Trusted), calculated from 1 verified data source including 85 Google reviews.
Where is HVAC Zack located?
HVAC Zack is a hvac serving Oshawa, Ontario. You can reach them at +1 705-344-3124. View their full profile on ProScore for verified reviews and credentials.

Business Details

21 Simcoe St S, Oshawa, ON L1H 4G1
HVAC
View on Google Maps

Hours

Friday8a.m.-6p.m.
Monday8a.m.-6p.m.
SaturdayClosed
SundayClosed
Thursday8a.m.-6p.m.
Tuesday8a.m.-6p.m.
Wednesday8a.m.-6p.m.

Services Offered

AC installationFurnace repairDuctworkHVAC maintenanceHeat pump installationThermostat installation
Emergency Service

Credentials

TSSA License
000307331
✓ Confirmed
Insurance
Not Confirmed
WSIB Coverage
✓ Confirmed

ProScore displays credential information as reported by contractors and third-party sources. Homeowners are encouraged to independently verify all credentials, licenses, and insurance prior to engaging any contractor.

Data Transparency

SourcesGoogle and Ontario regulatory records
Last updatedMay 2026

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Checked by ProScore

What is the ProScore?

The ProScore aggregates ratings from multiple review platforms into a single score from 0 to 100. Unlike platforms that show only their own reviews, the ProScore gives you the complete picture. Scores are capped for providers with limited source verification.

≥80
Elite
≥65
Trusted
≥50
Good
≥30
Basic
<30
Caution

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