Skip to main content
Menu
Find a Contractor
PlumbersElectriciansHVACRoofersGeneral ContractorsDrywallersKitchen RemodelingBathroom RemodelingPest ControlTree ServiceLandscaping
Resources
Homeowner HubHow-To GuidesFirst 90 DaysHiring GuidesCost GuidesCompare ContractorsCoverage MapAsk ProScore AIFAQ
For Pros
Pro ResourcesClaim Your ProfileImprove Your Score
Leave a ReviewClaim Your ProfileFREE
support@proscore.ca
HVAC Professional

ONAS Heating & Cooling Corp. O/A Ontario Air Services logoONAS Heating & Cooling Corp. O/A Ontario Air Services

Vaughan, ON
Compare with similar hvac providers in Vaughan →
Emergency ServiceResponds to Reviews
+1 647-687-4911 Website(opens in new tab)
Serving Vaughan & area
ProScore
5★ Google|1/4 Sources

This score reflects 143 verified reviews.

How is this calculated?
Data verified: Jun 2026

About ONAS Heating & Cooling Corp. O/A Ontario Air Services

AI-generated summary from verified data sources

Serving Vaughan, ONAS Heating & Cooling Corp. O/A Ontario Air Services is an established HVAC contractor in the region. With a 5.0★ rating from 143 Google reviews, they are among the top-rated in their area.

G
Google
5★ (143)
Rated on 1 independent platform

Is this your business?

Claim your profile to access your Trust Score dashboard, respond to reviews, and unlock growth tools.

Claim This Profile →

What Customers Say

AI analysis of 3-4 verified Google reviews

Top Strengths

Flawless installation that is extremely clean and well-organized
Fast emergency response and quick problem resolution
High level of professionalism and technical skill demonstrated
heat pump installationquick and efficient serviceprofessional teamemergency repair responseclean workmanship

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

Highly Rated

Consistently rated 5 stars across 143+ Google reviews.

Google Review Breakdown

143 total
5
143
4
0
3
0
2
0
1
0

Featured Review

Verified review from Google

“

ONAS Heating & Cooling Corp. exceeded my expectations. From start to finish, their team demonstrated a high level of professionalism and technical skill. The installation was not only flawless but also extremely clean and well-organized. It’s rare to find contractors who care this much about both quality and presentation. Highly recommend!

A
A. M.
Google Review

Other top rated hvac in Vaughan

Air Point Heating & Cooling
75
Vaughan
5(431)
Coral Mechanical Inc.
70
Vaughan
5(110)
Smile HVAC
70
Vaughan
5(1314)
LG Home Comfort
68
Vaughan
4.7(2485)

Homeowner Guides

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

Frequently Asked Questions

Is ONAS Heating & Cooling Corp. O/A Ontario Air Services licensed?
Licensing status has not been verified for ONAS Heating & Cooling Corp. O/A Ontario Air Services. Contact them directly to confirm current credentials before hiring.
Does ONAS Heating & Cooling Corp. O/A Ontario Air Services have insurance?
WSIB insurance status is not verified for ONAS Heating & Cooling Corp. O/A Ontario Air Services. Request proof of workplace insurance and liability coverage before hiring.
What is ONAS Heating & Cooling Corp. O/A Ontario Air Services’s rating?
ONAS Heating & Cooling Corp. O/A Ontario Air Services has a ProScore Trust Score of 58/100 (Good), calculated from 1 verified data source including 143 Google reviews.
Where is ONAS Heating & Cooling Corp. O/A Ontario Air Services located?
ONAS Heating & Cooling Corp. O/A Ontario Air Services is a hvac serving Vaughan, Ontario. You can reach them at +1 647-687-4911. View their full profile on ProScore for verified reviews and credentials.

Business Details

358 Edgeley Blvd Unit 7, Vaughan, ON L4K 3Y1
HVAC
View on Google Maps

Hours

FridayOpen 24 hours
MondayOpen 24 hours
SaturdayOpen 24 hours
SundayOpen 24 hours
ThursdayOpen 24 hours
TuesdayOpen 24 hours
WednesdayOpen 24 hours

Services Offered

AC installationFurnace repairDuctworkHVAC maintenanceHeat pump installationThermostat installation

Services & Info

Open 24 HoursEmergency ServiceOnsite servicesOnline estimates

Offerings

Repair services

Service options

Credentials

Insurance
Not Confirmed
WSIB Coverage
Not 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
Last updatedJune 2026

Is this your business?

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

More hvac in Vaughan →|All hvac in Ontario →|All contractors in Vaughan →
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

Are you the owner of this business? Dispute this score

Still researching?

Read the hiring guide →Check cost estimates →

Before you hire, read: 5 questions to ask every hvac →

Compare HVAC Contractors in Vaughan

See how ONAS Heating & Cooling Corp. O/A Ontario Air Services ranks against other verified hvac contractors in Vaughan on ProScore.

View ranked list of hvac contractors in Vaughan →Browse all hvac contractors in Vaughan →