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HVAC Professional

One Heating & Cooling logoOne Heating & Cooling

Newmarket, ON
Compare with similar hvac providers in Newmarket →
Emergency Service
Website(opens in new tab)
Serving Newmarket & area
ProScore

This score reflects 16 Google reviews.

How is this calculated?
Score updated: Oct 2026

About One Heating & Cooling

AI-generated summary from ProScore data sources

One Heating & Cooling operates six days a week in Newmarket and handles HVAC repair work, with free on-site parking and service available in English and Korean.

  • One Heating & Cooling: one of 8 HVAC contractors in Newmarket.
Rated on 1 independent platformProScore found ratings for this business on 1 independent review platform. Each one is listed in "Ratings Across Platforms" below.

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Ratings Across Platforms

Aggregated from independent sources. Only ProScore shows all.

1 source · 16 reviews
GoogleListing found
Google Business Profile reviews
5.0/5
16 reviews

No rating yet on Review platform C. Not found on 2 other platforms ProScore checks (Review platform B, BBB).

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

Well Reviewed

5.0 star average on Google with 16 reviews.

24-Hour Service on 5 of 7 Days

Posted hours show 24-hour availability on some days only. Check the hours card for which.

Google Review Breakdown

16 total
5
16
4
0
3
0
2
0
1
0

Other top rated hvac in Newmarket

Optimal Air Solutions Inc
79
Newmarket
4.9(91)
Everest Climate Solutions Inc.
75
Newmarket
4.9(262)
Canada Green Air Inc.
67
Newmarket
5(11)
Blu Hvac Inc
64
Newmarket
5(33)

Frequently Asked Questions

Is One Heating & Cooling licensed?
Licensing status has not been verified for One Heating & Cooling. Contact them directly to confirm current credentials before hiring.
Does One Heating & Cooling have insurance?
WSIB insurance status is not verified for One Heating & Cooling. Request proof of workplace insurance and liability coverage before hiring.
What is One Heating & Cooling’s rating?
One Heating & Cooling has a ProScore Trust Score of 57/100 (Good), calculated from 1 data source including 16 Google reviews.
Where is One Heating & Cooling located?
One Heating & Cooling is a hvac serving Newmarket, Ontario. View their full profile on ProScore for reviews and credentials.

Business Details

356 Coachwhip Trail, Newmarket, ON L3X 2R2
HVAC
View on Google Maps

Hours

MondayOpen 24 hours
TuesdayOpen 24 hours
WednesdayOpen 24 hours
ThursdayOpen 24 hours
FridayOpen 24 hours
Saturday9a.m.-5p.m.
SundayClosed

Services Offered

AC installationFurnace repairDuctworkHVAC maintenanceHeat pump installationThermostat installation

Services & Info

Open 24 HoursEmergency Service

Parking

On-site parkingFree parking lotFree parking garageFree street parking

Amenities

Gender-neutral washroom

Offerings

Repair services

Service options

Language assistance

Credentials

Insurance
Not Confirmed
WSIB Coverage
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 hiringHVAC FAQs in NewmarketView all guides →

Data Transparency

Sources
Google
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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Still researching?

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Compare HVAC Contractors in Newmarket

See how One Heating & Cooling ranks against other hvac contractors in Newmarket on ProScore.

View ranked list of hvac contractors in Newmarket →

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.