At MARZ your heating, AC systems and comfort are our #1 priority.
We respond fast because you're our neighbours and we have your back.
Available 24/7 for urgent AC repairs.
Don’t wait, call or text us at +1 (437) 238-6556
Routine maintenance at a time that suits your service. Book a consultation.
We’re a family-owned business serving Niagara families with reliable HVAC and heat pump solutions built for Ontario's summers and winters.
We treat your home like our own, and we always take our shoes off!
Maintain your system for year-round comfort and lower energy bills.
Fast, reliable repairs that restore comfort quickly.
Expert installation of high-performance HVAC & heat pumps.
Get a tankless water heater installed or repaired.
24/7 emergency service when you need it the most.
Our commitment to quality of services and customer satisfaction is why Niagara, St. Catharines, Welland and surrounding area homeowners trust us with their heating & cooling.
Call, text, or message us on WhatsApp.
We make it easy to get in touch with us.
Our certified technicians will arrive on time to inspect your system.
Stay comfortable year-round with proactive care and same-day support when you need it
Perfect for smaller repairs and regular maintenance of your AC.
We'll come and diagnose your issue and waive our diagnostic fee if we fix it
Ensure your heating & cooling systems run smoothly with plans starting at:
4.9/5 ratings from 150+ customer reviews.
We aim to provide same-day service for most repairs, depending on availability and the complexity of the issue.
Yes, we offer 24/7 emergency repair services to ensure your AC is fixed when you need it most.
Our maintenance plan includes annual inspections, cleaning, tune-ups, and priority scheduling for repairs.
The cost varies depending on the type and size of the unit. Contact us for a free, personalized quote based on your home’s needs.