JJM Heating and Cooling is a hvac serving St. Catharines, Ontario. You can reach them at +1 905-704-1779. View their full profile on ProScore for verified reviews and credentials.

Business Details

414 Glendale Ave, St. Catharines, ON L2P 3Y1

HVAC

View on Google Maps

Hours

Monday7a.m.-5p.m.

Tuesday7a.m.-5p.m.

Wednesday7a.m.-5p.m.

Thursday7a.m.-5p.m.

Friday7a.m.-5p.m.

Saturday7a.m.-5p.m.

SundayClosed

Services Offered

AC installationFurnace repairDuctworkHVAC maintenanceHeat pump installationThermostat installation

Emergency Service

Credentials

Insurance

Not 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.

Homeowner Guides

How much does this service cost in Ontario?Red flags when hiring HVAC FAQs in St. Catharines View all guides →

Data Transparency

Sources: Google
Score computed: September 19, 2026

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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

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Not yet rated

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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.