Skip to main content
Menu
Find a Contractor
Resources
For Pros
Leave a ReviewVerify Your Profile
HVAC Professional

HVAC Zack logoHVAC Zack

Oshawa, ON
Compare with similar hvac providers in Oshawa
Emergency ServiceWSIBTSSA LicensedResponds to Reviews
2 Credentials Verified
ProScore

This score reflects 85 verified reviews, licensed and verified.

How is this calculated?
Data verified: Sep 2026

About HVAC Zack

AI-generated summary from verified 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.

Rated on 1 independent platformProScore found ratings for this business on 1 independent review platform. Each one is listed in "Ratings Across Platforms" below.Government-licensedWSIB coverage confirmed

Is this your business?

Verify your profile to confirm your business, earn your Verified badge, and unlock your dashboard and growth tools.

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 source · 85 reviews
GoogleVerified source
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.

The ProScore Trust Score aggregates ratings from all verified sources, weighted by review volume, recency, and platform credibility.

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
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

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

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
WSIB Coverage
✓ Confirmed

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

Data Transparency

Sources
Google and Ontario regulatory records
Score computed
September 5, 2026

Is this your business?

Claim your profile to update info, add photos, and respond to reviews

Claim This Listing
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.

≥81
Elite
≥70
Trusted
≥54
Good
≥30
Basic
<30
Caution
Not yet rated

Are you the owner of this business? Dispute this score

Compare HVAC Contractors in Oshawa

See how HVAC Zack ranks against other hvac contractors in Oshawa on ProScore.

ProScore profiles are built from publicly available information and official public registries, and scored using ProScore’s own methodology. We check this data against third-party sources and work to keep it accurate, but records change and errors can occur. A ProScore is informational only — it is not a guarantee, endorsement, or recommendation. Before hiring any contractor, you should independently verify and confirm all relevant credentials, licences, insurance (including WSIB coverage) and references directly with the contractor and the issuing authority. If something here looks wrong, let us know and we’ll correct it promptly.