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Furnace Replacement Services in High River & Okotoks

Heating and cooling experts, just south of Okotoks, closer to you than Calgary! With G.M. Mechanical by your side, you don't have to worry about high gas bills or furnace replacements and repairs in Okotoks. We offer reliable and affordable furnace repair services in the MD of Foothills and surrounding towns. You have the following benefits with G.M. Mechanical:

A fully insured and licensed company

A Journeyman installer — ensuring that all installations are performed safely and correctly

Employee with a clean criminal record

A programmable thermostat with an option to upgrade

​A properly fabricated plenum adaptor

A local company that gives back to the community

With Lennox and G.M. Mechanical, you could be eligible for 10 years of parts and labour warranties and lifetime heat exchanger warranty.


So, if you want an inspection of your furnace and home to see what will save you energy and keep you comfortable, contact us for a free quote.

When It is Necessary to Replace Your Furnace?

If your furnace isn't functioning properly, you might wonder whether to repair or replace it. Deciding fast is crucial, especially if it breaks down in the middle of winter. To help you decide, here are some points to consider:


  • First, consider the age of your furnace. A typical furnace should last 15-25 years but could require repair at any time before the end of its lifecycle. In this case, the repair cost should not exceed 50% of the cost of a new furnace. If it does, it's best to replace your furnace.

  • Next, think about your energy bills. If your furnace is causing an increase in your energy bills, and it's not due to extreme weather conditions, then it might be time to replace it. Similarly, if you're calling for service repairs frequently, it's a sign that your furnace needs replacement.

  • Another sign to look out for is uneven heating in different parts of your home. If you're experiencing this issue, it could mean that your ductwork isn't designed properly, which may also indicate the need for a furnace that will work better with the available ducting.


It's important to note that regular maintenance and servicing can help extend the lifespan of your furnace. However, if you notice any of the above signs, it might be time to consider replacing your furnace. Call us today to learn more about our furnace replacement services in Okotoks, or read our FAQs.

Benefits of a Furnace Replacement

Upgrading your furnace comes with the following significant benefits:


Your new furnace can heat your home more evenly, reducing the energy bills that your old furnace was taking up.


Replacing your furnace will improve your home’s ability to circulate air.


New furnace models produce less noise, relieving your ears if you are used to hearing loud noises with an old furnace.

Upgrading to a new furnace often means adopting advanced technologies that significantly increase energy efficiency.


Modern furnaces are designed with a focus on environmental sustainability. 


It effectively captures dust, allergens, and pollutants, promoting a healthier living environment for you and your family.

Many new furnace models have innovative technology features, allowing you to control and monitor your heating system remotely.

Upgrading your furnace enhances your immediate comfort and adds importance to your property, making it a wise investment for the future.


At G.M. Mechanical, our staff will go beyond and suggest options tailored to meet your unique needs and budget. Contact us today to learn about our furnace replacement services in Okotoks.

Lennox Gas Furnace

Lennox offers you a wide selection of furnaces to choose from. We have a Lennox Furnace to suit every need. Their range of highly efficient furnaces includes:




It is a single-stage furnace that comes with a highly efficient ECM motor. It offers 96% fuel efficiency along with a constant-torque motor design.




Two-stage, variable speed 96% efficient furnace with an icomfort S30 thermostat. It is a communicating furnace that sends alerts to your cell phone, email, or text. We can diagnose the furnace from the office without coming into your house.



Offers you a 2 stage burner with variable speed blower motor which heats a place evenly.



It is a fully modulating furnace with zone systems. It offers the most precise comfort with variable speed, a smart system, and a communication system like EL296V.

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Lennox furnace
Merit Series

Joe’s Pick

Joe recommends ML296V Gas Furnace to stay warm inside your house this winter. The ML296V provides the benefits of a 2-stage furnace with a variable-speed blower motor without making a hole in your pocket. The furnace does not have the extra bells and whistles of the EL296V, but it is a solid furnace that many of our customers have enjoyed.

Download the product brochure

Heat savings

Thinking About Adding Air Conditioning?

Total air conditioning solutions for your home, from central cooling to ductless mini-splits.

Frequently Asked Questions

G.M. Mechanical answers your questions regarding reliable furnace replacement services in Okotoks:

  • Tips and hints from G.M. Mechanical!
    Water heaters are being hit hard with tariffs right now to the point where if you have a Power, Direct-Vent water tank, the unit is of a comparable cost to a tankless water heater. The only thing is, with a tankless water heater, you can still get up to a $1000.00 rebate from the Alberta government. If you don’t have a/c and want to keep your house cool, keep your blinds closed during the day, open the windows at night to help your house cool down. Also, run your furnace fan to help circulate air from the basement to the rest of the house. If you got a new furnace after the flood, your warranty might be running out this year. Book a Maintenance service call to potentially spot any issues before the parts are no longer under warranty! One way to check for water leaks is to watch your water meter. There should be no movement over 2 hours of no water use. Irrigation systems and lawn services usually leak water into/onto the ground, but over a 24 hr period can amount to a lot of water wasted. Irrigation lines should be blown out and air tested every year (usually in the fall). And lastly… please change your furnace filters often if you are completing a summer home renovation project. Drywall dust and other construction dust can wreak havoc on a furnace when it comes time to start again in the fall! As always, if you have any questions or need our help, please call G.M. Mechanical at 403-652-1282 or visit www.gmmech.net.
Technician working on Air Conditioning

Furnace Replacement in Okotoks

Experience warmth like never before! Our professional furnace replacement services in Okotoks guarantee efficient heating tailored to your home. Say goodbye to chilly nights and hello to cozy comfort.

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