HVAC Professional

Sentinel Heating & Cooling

Oshawa, ON

Emergency ServiceResponds to Reviews

+1 647-448-2544 Website

Serving Oshawa & area

63out of 100

Good

ProScore

This score reflects 71 Google reviews.

How is this calculated?

Score updated: Oct 2026

About Sentinel Heating & Cooling

AI-generated summary from ProScore data sources

Sentinel Heating & Cooling operates in Oshawa and is open seven days a week. The business handles emergency furnace repairs and installation work, with customers reporting rapid dispatch on the coldest days and competitive pricing notably lower than comparable estimates, along with clean job sites and professional workmanship from crews willing to work late to finish the job.

Sentinel Heating & Cooling: one of 15 HVAC contractors in Oshawa.
71 Google reviews (5.0 stars; median 49) for Sentinel Heating & Cooling, ahead of 9 of 14 HVAC contractors.

Is this your business?

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

Verify Your Profile →

What Customers Say

AI analysis of 10 Google reviews

Top Strengths

Emergency response and speed - consistently dispatched within hours on coldest days, with one customer receiving service same afternoon and another in under 2 hours

Fair pricing and transparency - quoted competitive rates 30% lower than competitors, with reasonable diagnostic pricing even during emergencies

Clean workmanship and site management - multiple mentions of neat job sites, quality installation reflecting professional pride, and crews staying late to complete work

emergency responseAJ leadershipfurnace installationcompetitive pricingprofessional workmanship

Ratings Across Platforms

Aggregated from independent sources. Only ProScore shows all.

1 source · 71 reviews

GoogleListing found

Google Business Profile reviews

5.0/5

71 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

Highly Rated

Consistently rated 5.0 stars across 71 Google reviews.

What Reviews Highlight

Reviews mention: emergency response, AJ leadership, furnace installation.

Google Review Breakdown

71 total

Featured Review

From Google

“

Our furnace died on the morning of the coldest day of the season. After calling several companies who were charging emergency premiums and some couldn't even come out the same day, I reached AJ at Sentinel Heating & Cooling. He was a true gentleman - quoted a very fair and reasonable diagnostic price and managed to get a technician to my house that same afternoon. The tech was able to get the furnace running temporarily, which gave us the breathing room to research replacement options without fr

Gurpreet Singh

Google Review

Photos & Work

1 photo

Other top rated hvac in Oshawa

HVAC Zack

Oshawa

5(85)

Active Climate Mechanical

Oshawa

5(47)

LFZ Heating & Cooling

Oshawa

4.9(174)

Max Comfort Heating & Cooling

Oshawa

4.9(72)

More HVAC contractors in Oshawa

Frequently Asked Questions

Is Sentinel Heating & Cooling licensed?

Licensing status has not been verified for Sentinel Heating & Cooling. Contact them directly to confirm current credentials before hiring.

Does Sentinel Heating & Cooling have insurance?

WSIB insurance status is not verified for Sentinel Heating & Cooling. Request proof of workplace insurance and liability coverage before hiring.

What is Sentinel Heating & Cooling’s rating?

Sentinel Heating & Cooling has a ProScore Trust Score of 63/100 (Good), calculated from 1 data source including 71 Google reviews.

Where is Sentinel Heating & Cooling located?

Sentinel Heating & Cooling is a hvac serving Oshawa, Ontario. You can reach them at +1 647-448-2544. View their full profile on ProScore for reviews and credentials.

Business Details

62 Cromwell Ave, Oshawa, ON L1J 4T6

HVAC

View on Google Maps

Hours

Monday8a.m.-9p.m.

Tuesday8a.m.-9p.m.

Wednesday8a.m.-9p.m.

Thursday8a.m.-9p.m.

Friday8a.m.-9p.m.

Saturday8a.m.-5p.m.

Sunday8a.m.-5p.m.

Services Offered

AC installationFurnace repairDuctworkHVAC maintenanceHeat pump installationThermostat installation

Emergency Service

Credentials

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
Score computed: October 13, 2026

Is this your business?

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

Claim This Listing

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

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?

Read the hiring guide →Check cost estimates →

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

Compare HVAC Contractors in Oshawa

See how Sentinel Heating & Cooling ranks against other hvac contractors in Oshawa on ProScore.

View ranked list of hvac contractors in Oshawa →

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.