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HVAC Professional

Atassi Mechanical logoAtassi Mechanical

Toronto, ON
Compare with similar hvac providers in Toronto →
Emergency ServiceWSIB
Website(opens in new tab) Email
1 Credential VerifiedInsured — self-declared
ProScore

This score reflects 35 Google reviews, WSIB coverage confirmed, actively managed by the business.

How is this calculated?
Score updated: Oct 2026

About Atassi Mechanical

AI-generated summary from ProScore data sources

Based in Toronto, Atassi Mechanical provides HVAC services and offers online estimates. The business operates six days a week, closed Sundays.

  • Atassi Mechanical: ProScore 77, tied 4th of 78 scored HVAC contractors in Toronto.
  • 35 Google reviews (5.0 stars; median 23) for Atassi Mechanical, ahead of 57 of 89 HVAC contractors.
Rated on 1 independent platformProScore found ratings for this business on 1 independent review platform. Each one is listed in "Ratings Across Platforms" below.Insured — self-declaredInsurance status is self-declared by the contractor. Homeowners may request proof of coverage directly.WSIB coverage confirmed

Ratings Across Platforms

Aggregated from independent sources. Only ProScore shows all.

1 source · 35 reviews
GoogleListing found
Google Business Profile reviews
5.0/5
35 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 35 Google reviews.

WSIB Verified

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

Profile Claimed

The business has claimed this profile and can keep its details current.

Google Review Breakdown

35 total
5
11
4
0
3
0
2
0
1
0

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Frequently Asked Questions

Is Atassi Mechanical licensed?
Licensing status has not been verified for Atassi Mechanical. Contact them directly to confirm current credentials before hiring.
Does Atassi Mechanical have insurance?
Yes, Atassi Mechanical has verified WSIB (Workplace Safety and Insurance Board) coverage, which protects homeowners from liability if a worker is injured on the job.
What is Atassi Mechanical’s rating?
Atassi Mechanical has a ProScore Trust Score of 77/100 (Trusted), calculated from 1 data source including 35 Google reviews.
Where is Atassi Mechanical located?
Atassi Mechanical is a hvac serving Toronto, Ontario. View their full profile on ProScore for reviews and credentials.

Business Details

1655 Dupont St Suite #101, Toronto, ON M6P 3T1
HVAC
View on Google Maps

Hours

Monday8:00 AM - 6:00 PM
Tuesday8:00 AM - 6:00 PM
Wednesday8:00 AM - 6:00 PM
Thursday8:00 AM - 6:00 PM
Friday8:00 AM - 6:00 PM
Saturday9:00 AM - 5:00 PM
SundayClosed

Services Offered

AC installationFurnace repairDuctworkHVAC maintenanceHeat pump installationThermostat installation

Services & Info

Emergency ServiceOnline estimates

Crowd

LGBTQ+ friendly

Other

LGBTQ+ friendly

Service options

Credentials

Insurance
Self-declared

Insurance status is self-declared by the contractor. Homeowners may request proof of coverage directly.

WSIB Coverage
✓ 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 hiringHVAC FAQs in TorontoView all guides →

Data Transparency

Sources
Google, Ontario regulatory records, and contractor self-attestation
Score computed
October 13, 2026
More hvac in Toronto →All hvac in Ontario →All contractors in Toronto →
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

Are you the owner of this business? Dispute this score

Still researching?

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Compare HVAC Contractors in Toronto

See how Atassi Mechanical ranks against other hvac contractors in Toronto on ProScore.

View ranked list of hvac contractors in Toronto →

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.