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Air Conditioners

Choose from the Lennox range of air conditioners and pick the right one for you.

Indoor Air Quality

Lennox indoor air quality systems are the leader in home air quality services.


Get in touch with a reliable electrician in times of emergency.


We are here to ensure that your furnace is winter-ready. We offer 24-hour service.

Furnace Replacement

Call us round-the-clock for replacing worn-out furnaces.

Boiler Systems

Fix your leaking, worn out or rusting boiler systems today and avoid an emergency situation.

Ductless Mini-Splits

Call us for neat installations of your new ductless mini-split air conditioning system.


Experienced plumbers at your service with the right tools and technology to get the job done.

Wells/Water Conditioning

Quality water treatment and filtration systems for better home water quality.

Hydronic/Water Heating

Choose between gas, electric and tankless water heaters and our technicians will handle the rest.


We offer professional commercial HVAC installation and service.

Gas Fireplaces

Bundle up by the fire during the cold season. Schedule a free in-home consultation with us today.

Garage and Shop Heaters

Don’t let the cold keep you from your hobby. Check out our garage and shop heater line up.

Employee of the Month

Meet Theresa 


Teresa! I would say that she is easily one of the most important people here! Most of our employees don't appreciate how much she really does for us. 

Teresa is our Office Manager and has been with G.M. Mechanical for 9 years as of Saturday. I think we'll give her the day off. She is a bookkeeper by trade and does an excellent job keeping our books in order. She is also our Safety Manager as well and has the thankless job of ensuring that our COR for safety excellence remains valid. And yet, with both of those titles, probably the hardest job that she does is keeping me from spending too much money! I really appreciate that!

She currently lives in High River and has done so for 30 years.

Family-owned Plumbing and Heating Business in High River & Okotoks

G.M. Mechanical is a High River based plumbing and heating company serving the M.D of Foothills, just south of Okotoks, closer to you than Calgary! We service all towns within the MD (High River, Okotoks, Turner Valley and Black Diamond) as well as the Priddis, Millarville, Vulcan, Milo, Arrowwood, and Claresholm areas. We have been serving the Foothills since 1991 and have built a good reputation in the area. Being the only premier Lennox dealer in the Foothills, we have been providing residential and commercial HVAC services with top-quality products and excellent customer service.  We are also heavily involved with the community and often contribute to organizations such as the local food bank.

Lennox Premier Dealer

Skillful Team

We take great pride in our team, most of whose members have been associated with us for a very long time. Our technicians are encouraged to continually strive to get more education regarding new products and technology. They are passionate about delivering exceptional quality services and deeply believe in customer satisfaction. Schedule a service call now and experience top-quality service by trusted professionals.

High-quality Electrical, Heating and Cooling experts, just south of Okotoks, closer to you than Calgary!

G.M. Mechanical is known for its fast and honest service in the MD of Foothills and surrounding areas. We intend to complete every job with 100 percent customer satisfaction. When you call us for service, you can expect a fast response and top-quality workmanship. We assure you:

Personalized options

When you hire us for a job, we will offer you several options tailored to meet your unique needs and budget.

Cutting edge technology

We train our technicians on the latest equipment to provide you with safe and efficient HVAC services.

Respectful technicians

We have trained our technicians to wear proper footwear to protect your flooring and ensure you won’t be left with any mess when we leave.

Properly insured services

All proper insurances are in place to grant you complete peace of mind. Also, we have a comprehensive safety program to ensure that our employees go home to their families safely every night. It even ensures that no customers are hurt and their property is not damaged.

Plumbing, HVAC and Electrical Services in the Foothills

Our technicians are experienced and trained to service, maintain, install, and repair all major kinds of commercial and residential plumbing, heating, air conditioning and electrical equipment. Our technicians are trained to perform each job with the utmost attention. From insulating the ductwork to installing the copper refrigeration pipe, our quality of work is unmatched. When you hire G.M. Mechanical, you can rest assured that the job will be done on time and on budget.

*Free estimates for jobs over $1000

Contact Us

G.M. Mechanical

506 – 21st ST SE

High River, AB T1V 2A7







Monday - Friday 08:00 AM - 04:30 PM

Saturday - Sunday Closed

24 hour emergency service

Service Area

The MD of Foothills and all the towns within the MD (High River, Okotoks, Turner Valley and Black Diamond)

  • Priddis

  • Millarville

  • Vulcan

  • Milo

  • Arrowwood

  • Claresholm


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