Unparalleled comfort. Clean air assured.
Obtain the best products and services for air conditioning and heating adapted to your house and needs
Our Products
High-Performance Systems for Any Type of Home
Our Services
Professional Services
Star Products
Our Most Appreciated and Recommended Systems
Promotions
Enjoy an amazing discount of $1 000
+6 months without payment or interest
From April 1st to June 30th 2023 get a discount of $1 000 when you purchase a Fujitsu heat pump model AOUG12LMAS1. This product is also eligible for the Chauffez vert grant in the amount of $515. Talk with one of our experts to take advantage of this rebate!
Why MST?
MST Redefines Comfort at Home.
For more than 40 years, MST has offered a full range of products and services to make your home comfortable all year round.
Our installations are completed according to the manufacturer’s strict standards. We guarantee the quality of the finishing, the cleanliness of the premises, and compliance with building codes.
Discover more
+45 years
of service to our customers
+30 experts
and certified employees
+2 500 projects
installations and service calls
+20 000 customers
satisfied with their MST system
Testimonials
Our customers are talking about us
Very professional.
“The service was very professional. After the installation, the place was spotless. The technicians were friendly and respectful. We love our appliance. It is high-performance and quiet.”
Jocelyne Blais
Châteauguay
Excellent service.
“I had two heat pumps installed in my home, and I received excellent service. They did it quickly, and everything was clean. The technicians were very kind and professional.”
Michel Brisson
Saint-Lambert
