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Professional Furnace Installation and Maintenance Services in Ottawa

Can you imagine facing an Ontario winter without a working furnace in your home? It's unthinkable. For all your furnace installation, maintenance and repair needs in Ottawa, trust Clement Marchand Natural Gas Services Ltd.

Whether you require a brand-new furnace or need to tune up your current unit, we are here to assist you with prompt, reliable services and solutions.

Contact us today to schedule an appointment with one of our experts and receive a free quotation. We can evaluate your heating requirements and provide a recommendation based on our assessment. Regardless of the size of your space or the condition of your current furnace, we will ensure you stay warm throughout the winter.

We offer comprehensive furnace maintenance services, residential boilers, air conditioning, water tanks, and more!

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A Carrier® Energy-Saving Furnace Is Waiting for You

Since we opened our doors nearly 50 years ago, Clement Marchand has offered only the highest quality brands with top-of-the-line products. We are proud to be an authorized dealer for Carrier® furnaces and the legacy of excellence that comes with each unit. Carrier® offers an optimal combination of comfortable heating and energy efficiency. You'll not only see your energy bills go down with the temperature but also save energy and a little bit of the planet in the process.

Furnace Installation in Ottawa

We pride ourselves on providing the best state-of-the-art furnaces and high-quality installation and maintenance services. We can install a new furnace if your existing unit is beyond repair or replace a furnace to improve your home's energy efficiency.

When you book a service with us, one of our experts will visit your home to assess the quality of your property's insulation and the heating and humidity variations. After these assessments and measurements, we will help you select an energy-efficient furnace that satisfies all your heating requirements. Our team of HVAC experts will then ensure your system is installed correctly so that you and your family are ready to feel cozy and comfortable through the cold winter. Call us to discuss your requirements.

Our Furnace Installation Services

At Clement Marchand Natural Gas Services Ltd., we follow a step-by-step process to ensure a successful furnace installation:

  • Initial assessment: We assess your heating needs and recommend the right furnace for your home.

  • Preparation: We prepare the installation site and ensure all necessary equipment is on hand.

  • Installation: Our technicians install your new furnace with precision and care, following manufacturer guidelines. 

  • Quality checks: We perform thorough checks to ensure your furnace is installed correctly and operates efficiently. 

  • Safety measures: We prioritize safety during installation, following all safety protocols and regulations. 

  • Specialized Equipment and Technology: We use advanced equipment and technology to ensure a seamless installation process and optimal performance of your furnace.

Types of Furnaces

Clement Marchand Natural Gas Services Ltd. specializes in the installation of gas furnaces, including:

  • Single stage: Traditional furnaces that operate at total capacity.

  • Two-stage: Furnaces that can operate at two different heating levels, depending on the temperature outside.

  • Modulating: Furnaces that continuously adjust the level of heating to maintain a consistent temperature. 

  • ECM variable speed blowers: Furnaces with variable-speed blowers that provide more precise control over airflow and energy consumption.

  • Set speed blowers: Furnaces with fixed-speed blowers that provide consistent airflow.

Read our blog post, "What Type of Furnace Is Best for Your Home?" for more information on choosing the right furnace.

Benefits of Professional Furnace Installation

Professional furnace installation offers several advantages, including: 

  • Efficiency: Proper installation ensures that your furnace operates at its highest efficiency, which can help lower your energy bills. 

  • Reliability: Professional installation reduces the risk of future breakdowns and ensures that your furnace operates smoothly for years. 

  • Safety: Proper installation minimizes the risk of carbon monoxide leaks and other safety hazards. 

  • Warranty: Professional installation often comes with a warranty covering parts and labour, providing peace of mind.

Furnace Maintenance Services in Ottawa

If your heating system has been breaking down more often than usual, you may need a new furnace or your system is clogged. Regular professional cleaning and furnace maintenance can help extend the lifespan of your furnace, save you from expensive repairs and major breakdowns and ensure your home stays comfortable through the winter. Even if you think there are no issues or problems with your furnace, annual or bi-annual services can help spot and fix any potential issues. 

If you notice any of the following when running your furnace, it might be a good time for you to consider a maintenance and cleaning service for your furnace:

  • The build-up of dirt, dust, dander and debris around your vent frames. 

  • Yellow flames from your furnace could mean your burner or flame sensor is dirty, and your system is not ventilating properly. This puts you and your family at risk of carbon monoxide leaks. 

  • Water leaking from your furnace frequently results in a clogged condensate line, which could lead to mould spores and bad air quality. 

  • Your furnace is short-cycling, switching on and repeatedly shutting off quickly. 

  • Your furnace is running, but it’s blowing cold air. 

  • Unusually high energy bills. 

Contact us right away to schedule a service for your home in Ottawa!

Des cylindres et des appareils de chauffage

Benefits of Replacing a Furnace

Replacing an old furnace is important because it allows you to benefit from the following:


  • Increased energy efficiency

  • Increased performance compared to your old furnace

  • Adds value to your home

  • Peace of mind knowing your family will be comfortable

  • Lower energy bills

  • A better airflow

Furnace Repair in Ottawa

Your furnace is one of the most important systems in your home. If your furnace is experiencing performance problems, it's probably time to have it repaired. At Clement Marchand, we offer efficient furnace repair services for all makes and models, so you and your family can enjoy a warm home during the Ottawa winter.


When the sun is out, and there’s little need for extra heating, your furnace can go largely ignored. Waiting until the snow and ice are on the ground might be too late for furnace repairs. Be prepared for the cold and call us to finish the job promptly. 

Furnaces come in several shapes and sizes, but there are several consistent warning signs that something isn’t working correctly. Look out for the following signs: 


  • Cracks in the heat exchanger

  • Clogged or dirty filters

  • Squealing blower belt

  • Problems with ignition or pilot lights

  • Faulty thermostat

  • Flickering or yellow pilot light

  • Flashing

  • Scraping sounds

  • Switching between On and Off

Clement Marchand Natural Gas Services Ltd. provides exceptional furnace repair services in Ottawa. Our team of experienced technicians is dedicated to keeping your home warm and comfortable, especially during the chilly winter months. Whether your furnace is making strange noises, not producing enough heat, or has stopped working, we can diagnose the issue quickly and efficiently. With our prompt and reliable repair services, you can trust us to restore your furnace to optimal working conditions in no time. With 24/7 emergency service, our team is ready to resolve your emergency. We know your furnace is essential, and we will not leave you to chill overnight! Call us today!


Here are some of the most frequently asked questions we get asked from our customers: 

How Often Do I Need to Service My Furnace?
We recommend an annual furnace maintenance service. It is less expensive than repairs and helps to spot and address minor problems before they become bigger, more expensive problems. We can offer solutions for potential problems to keep your furnace running smoothly.
What Is a Furnace Filter? How Often Do I Need To Replace It?
The furnace filter helps to improve your air quality by catching debris, allergens and dust that collect in the ducts. Using your furnace regularly can easily get clogged and circulate dusty air through your home, which is a health hazard. If using disposable filters, check them monthly and replace them every three months to ensure your furnace is functioning efficiently. Washable filters are a permanent, one-time purchase item and need to be removed and cleaned as frequently.
What Should I Do If My Furnace Stops Working?
The most common furnace problems start as an issue with the thermostat. If your thermostat is fine, any issues could be caused by a clogged filter, a faulty safety switch, or dirty burners. Turn off the mains and breaker and contact our experts for assistance. We are available 24/7 for reliable emergency furnace repairs in Ottawa.
How long does it take to install a furnace?
The time it takes to install a furnace can vary depending on the complexity of the installation and the type of furnace being installed. A typical furnace installation can take a few hours to a full day.
Do I need to be present during the furnace installation?
It's recommended that you be present during the furnace installation to ensure the work is being done correctly and to address any questions or concerns that may arise during the process.
Can I install a furnace myself to save money?
While installing a furnace yourself is possible, it's only recommended if you have the necessary skills and experience. Improper installation can lead to safety hazards and may void your furnace warranty.
What factors should I consider when choosing a furnace for installation?
When choosing a furnace for installation, consider factors such as the size of your home, the furnace's efficiency rating, fuel type (natural gas, propane, electric), and any additional features you may want, such as variable-speed blowers or zoning systems.
How often should I schedule maintenance for my newly installed furnace?
You should schedule annual maintenance for your furnace to ensure it continues to operate efficiently and safely. Regular maintenance can also help prevent costly repairs down the road. 

Un technicien travaille sur des unités de mesure

Why Choose Us?

You can rely on us for furnace repair, maintenance and installation services. We prioritize our customers’ safety and health. When you choose us, you get the following:

  • Exceptional workmanship

  • Mess-free repairs

  • Quality brands

  • 24/7 emergency services

  • Free estimates

  • Transparent costings

  • Expert consultation

  • Experienced technicians

  • Maintenance contracts

Call us today for a free quote on furnace sale, installation, service, and repair before it’s too late.

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