Licensed & Insured
Serving Niagara for 10+ Years
All Major Brands Serviced
5-Star Google Rating
How Can We Help?
Why Homeowners Choose MarZ Heating & Cooling
- No hidden fees
- Real technicians (not sales reps)
- Local Niagara company (not corporate)
- Fast response times
We do the job right — the first time.
Commercial HVAC Services
In the Niagara Region
We provide reliable repair, installation, and preventative maintenance services for commercial and industrial properties throughout St. Catharines & the Niagara Region.
Certified. Experienced. Trusted.
Licensed HVAC professionals delivering reliable heating and cooling solutions for homes and businesses.
Certified Technicians
10 Years of Experience
5-Star Customer Satisfaction
Protection Plans
Join MarZ Comfort Club and protect your furnace, air conditioner, heat pump, and water heater with scheduled maintenance and priority service.
Your Comfort, On Your Budget
Enhance your home’s comfort and energy efficiency with a new HVAC system. We provide competitive financing plans designed to ensure your home upgrade comfortably fits your budget
Recent News
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