HVAC Professional

HVAC Zack

Oshawa, ON

Emergency ServiceWSIBTSSA LicensedResponds to Reviews

+1 705-344-3124 Website

2 Credentials Verified

78out of 100

Trusted

ProScore

This score reflects 85 Google reviews, licensed and verified.

How is this calculated?

Score updated: Oct 2026

About HVAC Zack

AI-generated summary from ProScore data sources

HVAC Zack handles heat pump installations and HVAC service in Oshawa. Customers consistently report strong workmanship on installations, problem-solving expertise, and transparent pricing that often comes in under initial estimates.

HVAC Zack: ProScore 78, 1st of 15 scored HVAC contractors in Oshawa.
85 Google reviews (5.0 stars; median 49) for HVAC Zack, ahead of 11 of 14 HVAC contractors.

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What Customers Say

AI analysis of 9 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 source · 85 reviews

GoogleListing found

Google Business Profile reviews

5.0/5

85 reviews

Not found on 3 other platforms ProScore checks (Review platform B, BBB, Review platform C).

ProScore aggregates Google, the BBB and other major review platforms. Some sources are not named publicly.

How sources are weighted: ProScore methodology.

Things to Know

Trusted Level

Scores in ProScore’s Trusted tier — strong, consistent signals across the sources ProScore checks.

Highly Rated

Consistently rated 5.0 stars across 85 Google reviews.

WSIB Verified

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

TSSA Licensed

Licensed with the Technical Standards and Safety Authority — confirmed against the register.

What Reviews Highlight

Reviews mention: heat pump installation, professional and reliable, responsive and efficient.

Google Review Breakdown

85 total

Featured 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

Robert Marleau

Google Review

Photos & Work

1 photo

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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 78/100 (Trusted), calculated from 1 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 reviews and credentials.

Business Details

21 Simcoe St S, Oshawa, ON L1H 4G1

HVAC

View on Google Maps

Hours

Monday8a.m.-6p.m.

Tuesday8a.m.-6p.m.

Wednesday8a.m.-6p.m.

Thursday8a.m.-6p.m.

Friday8a.m.-6p.m.

SaturdayClosed

SundayClosed

Services Offered

AC installationFurnace repairDuctworkHVAC maintenanceHeat pump installationThermostat installation

Emergency Service

Credentials

TSSA License

000307331

✓ Confirmed

Insurance

Not Confirmed

Credentials are as reported by contractors and public sources — verify each with the contractor and the issuing authority before hiring.Check it yourself: WSIB clearance · TSSA fuels contractor registry

Homeowner Guides

How much does this service cost in Ontario?Red flags when hiring HVAC FAQs in Oshawa View all guides →

Data Transparency

Sources: Google and Ontario regulatory records
Score computed: October 13, 2026

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Checked by ProScore

What is the ProScore?

One score from 0 to 100 across every review platform and public registry ProScore checks. How the ProScore works

≥81

Elite

≥70

Trusted

≥54

Good

≥30

Basic

<30

Caution

—

Not yet rated

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A ProScore is informational only — not a guarantee, endorsement, or recommendation — and the data behind it may be incomplete or out of date. Before hiring, independently verify all credentials, including licences, insurance (including WSIB) and references, directly with the contractor and the issuing authority. Full data notice. Something wrong? Let us know.