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  • About Us
    • Our History
    • Our Team
    • News
    • Reviews
  • Heating
    • Furnace Installation
    • Furnace Showcase
    • Furnace Repair & Service
    • Boiler Installation
    • Boiler Showcase
    • Boiler Repair & Service
    • Heat Pump Installation
    • Heat Pump Showcase
    • Wall Furnaces & Heaters
    • Radiant Floor Heating
    • Fireplace Installation
    • Fireplace Showcase
    • Fireplace Repair & Service
    • Thermostats
    • Duct Cleaning
      + Air Quality
    • Emergency Furnace Service
  • Cooling
    • Air Conditioner Installation
    • Air Conditioner Showcase
    • Air Conditioner Repair & Service
    • Ductless Air Conditioning
    • Heat Pump Installation
    • Heat Pump Showcase
  • Liquid Propane
    Installation
  • New Construction
    + Current Projects
    • New Construction
    • Current Projects
  • Promotions
  • Contact Us

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A Leader in Furnaces, Air Conditioners, Boilers and Fireplaces

Providing a Wide Range of Heating and Cooling Services in
Glengarry, Embrun, Prescott & Russell since 1976

Fernand Denis is a family-owned heating and cooling company with over 40 years of satisfied customers. We are proud to serve both homeowners and building owners. We pride ourselves on the quality of our work and our customer comes first attitude. We offer one of the widest ranges of heating and cooling services available, including installations and repairs for furnaces, air conditioners, boilers, fireplaces, heat pumps, wall furnaces and heaters, radiant floor heaters, and liquid propane installation, as well as duct cleaning. Licensed by TSSA and a member of the HRAI, we continuously strive to provide our customers with the best installation, repair, and service.

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Napoleon Fireplaces
Uponor Radiant Floor Heating
lennox
Viessmann Vitodens Boiler

Our Heating and Cooling Services Include:

Furnaces

Furnaces

We have a wide selection of Lennox furnaces available for installation and will service or repair any make or model. All our furnace installations come with a minimum 5-year warranty.

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heating and cooling systems for New Construction

New Construction

At Fernand Denis, we specialize in installing heating and cooling systems for new residential construction projects quickly and efficiently. We’re happy to work with any general contractor or builder.

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Air Conditioning service and install

Air Conditioning

We’re pleased to offer high efficiency, super quiet Lennox central air conditioners suited for homeowners, building owners and more. All our air conditioners are ENERGY STAR® qualified.

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Duct Cleaning

Duct Cleaning

We’ve been providing industry-leading duct cleaning services for over 20 years. We have three duct cleaning systems ready to serve you, including two state of the art Rototilt® systems.

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Grain and Corn Dryer

Liquid Propane Installation

Our long lasting liquid propane installations set the industry standard for crop dryers and propane dispensers. For many farmers from Trois-Rivières to Kingston, our installations are the preferred choice.

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Furnace and Air Conditioner Promotions

Promotions

Looking for a great deal on a new furnace or air conditioner? Check out our latest promotions to see what we can offer you.

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Need Heating or Cooling help?

Project Showcase

Radiant floor heating pipes installed in one day by Fernand Denis Inc.

Latest News

Playing Chicken With PEX

January 31, 2017

What do you do when you are installing an in-floor heating system for a poultry farmer who has already ordered the chicks that are supposed to inhabit the barn that you are still building? First step: breathe. And then you double check your dimensions and heat load requirements and go looking for heating system options that will minimize the time it takes to go from a gravel base to an installed in-floor heating system slab.

A poultry farm normally orders day-old chicks from a hatchery, raising them for approximately eight weeks before the birds are harvested for food. When Tony and Wilma Baas, the Ottawa-area farmers whose barn was being built, informed the plumbing team at Fernand Denis Inc. that their first shipment of birds would be arriving on a scheduled date, Pascal Denis knew that the building had to be ready. There was no wiggle room for him—or for the chicks.

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About Us

At Fernand Denis, we're proud to serve all villages and towns in Glengarry, Prescott and Russell, including Embrun, Russell, Casselman, St. Albert, St. Isidore, Clarence Creek, Clarence-Rockland, Plantagenet, St. Bernadin, Alfred, L'Original, Hawkesbury, Dunvegan, Laggan, Alexandria, Maxville, Limoges, Bourget and Vankleek Hill. Contact Fernand Denis today for your furnace, air conditioner, boiler, fireplace, heat pump, wall furnace, and radiant floor heating service or installation. We also provide specialized duct cleaning, liquid propane installation and new construction services.

Contact Us

Address
107 Caledonia
St-Isidore, ON K0C 2B0


613.524.2897

Toll Free: 877.768.8848
Fax: 613.524.3194

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Reviews

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have to say about us!

Licensed by TSSA

TSSA

TSSA Number: 0037041001

Member of HRAI

HRAI

Better Business Bureau

HRAI
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  • About Us
    • Our History
    • Our Team
    • News
    • Reviews
  • Heating
    • Furnace Installation
    • Furnace Showcase
    • Furnace Repair & Service
    • Boiler Installation
    • Boiler Showcase
    • Boiler Repair & Service
    • Heat Pump Installation
    • Heat Pump Showcase
    • Wall Furnaces & Heaters
    • Radiant Floor Heating
    • Fireplace Installation
    • Fireplace Showcase
    • Fireplace Repair & Service
    • Thermostats
    • Duct Cleaning
      + Air Quality
    • Emergency Furnace Service
  • Cooling
    • Air Conditioner Installation
    • Air Conditioner Showcase
    • Air Conditioner Repair & Service
    • Ductless Air Conditioning
    • Heat Pump Installation
    • Heat Pump Showcase
  • Liquid Propane
    Installation
  • New Construction
    + Current Projects
    • New Construction
    • Current Projects
  • Promotions
  • Contact Us
Fernand Denis