Trusted HVAC & Fireplace Experts Since 2002    Get a Free Quote | 1-877-331-8886

Trusted by +6,700
homeowners and professionals

Your Trusted HVAC & Fireplace Experts in Ontario

For Over 35 years at Montwest, we believe every home deserves year-round comfort.

Our certified technicians take pride in honest work, energy-efficient solutions, and a personal touch that keeps customers coming back. When you choose Montwest, you’re choosing a team that treats your home like our own.

Learn More About Us

Expert HVAC Services for Every Season

Keep your home perfectly comfortable year-round with reliable heating, cooling, and ventilation solutions installed by certified experts.

Premium Fireplaces for Every Home

Elevate your home with fireplaces that blend timeless design, modern technology, and everyday comfort.

Why Choose Us

Certified Experts

Our licensed professionals deliver top-quality workmanship for every project.

Fast & Reliable Service

We respond quickly and get the job done right — the first time.

Clear Communication

We keep you informed at every step, from quote to completion.

Energy-Efficient Solutions

We help you save energy while keeping your home comfortable all year round.

35+

Years of Experience

10,000+

Happy Homeowners

37,500+

Systems Installed

24/7

Online support

Proven Comfort, Trusted Service

From family homes to business spaces, Montwest has earned the trust of clients across Ontario. Our commitment to quality service and reliable results speaks through their words.

Get In Touch

Cordy Spagnuolo

Officer From Greenpark

“Greenpark’s reputation for providing quality homes since 1967 is partially due to partners like Montwest. For many years, Montwest Mechanical has provided HVAC services that have kept Greenpark purchasers warm and happy. Thanks to the entire team for providing consistent service that maintains our standard of excellence.”

Justin Pellicciotta

Officer at BW

“I approached Montwest Mechanical Inc because I needed a HVAC contractor for our residential subdivisions. Montwest assisted us by keeping us on budget, on schedule with the highest quality of workmanship.
 Montwest’s service program has been great for our homeowners, keeping calls to our office limited and ultimately keeping our homeowners happy. I have found the experience of dealing with Montwest a pleasure from start to finish on each jobsite. I would recommend Montwest to anyone who needs a dependable HVAC contractor.”

Anthony Montemarano

Officer Lakeview Group of Companies

“I approached Montwest Mechanical Inc because I needed a HVAC contractor for our residential subdivisions. Montwest assisted us by keeping us on budget, on schedule with the highest quality of workmanship.
 Montwest’s service program has been great for our homeowners, keeping calls to our office limited and ultimately keeping our homeowners happy. I have found the experience of dealing with Montwest a pleasure from start to finish on each jobsite. I would recommend Montwest to anyone who needs a dependable HVAC contractor.”

Cordy Spagnuolo

Officer From Greenpark

“Greenpark’s reputation for providing quality homes since 1967 is partially due to partners like Montwest. For many years, Montwest Mechanical has provided HVAC services that have kept Greenpark purchasers warm and happy. Thanks to the entire team for providing consistent service that maintains our standard of excellence.”

Justin Pellicciotta

Officer at BW

“I approached Montwest Mechanical Inc because I needed a HVAC contractor for our residential subdivisions. Montwest assisted us by keeping us on budget, on schedule with the highest quality of workmanship.
 Montwest’s service program has been great for our homeowners, keeping calls to our office limited and ultimately keeping our homeowners happy. I have found the experience of dealing with Montwest a pleasure from start to finish on each jobsite. I would recommend Montwest to anyone who needs a dependable HVAC contractor.”

Anthony Montemarano

Officer Lakeview Group of Companies

“I approached Montwest Mechanical Inc because I needed a HVAC contractor for our residential subdivisions. Montwest assisted us by keeping us on budget, on schedule with the highest quality of workmanship.
 Montwest’s service program has been great for our homeowners, keeping calls to our office limited and ultimately keeping our homeowners happy. I have found the experience of dealing with Montwest a pleasure from start to finish on each jobsite. I would recommend Montwest to anyone who needs a dependable HVAC contractor.”

Your Comfort, Our Commitment

For over 20 years, Montwest has been helping Ontario homeowners and businesses create spaces that feel just right. From installation to maintenance, our local team delivers comfort you can count on — season after season.

Request Your Free Quote Today

Tell us what you need, and our team will get back to you with a no-obligation quote within 24 hours.