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Fernand DenisFernand DenisFernand DenisFernand Denis
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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

Our History

A Heating and Cooling leader in the Clarence-Rockland, Hawkesbury and Embrun area since 1976

A Family Beginning

Fernand Denis is a family owned heating and cooling company with over 40 years of satisfied customers in Glengarry, Prescott and Russell. It all began in 1976 when Fernand saw an opportunity. At that time, it was a home based business in St. Isidore with a single truck. While Fernand’s wife Françoise did the paperwork, he went door-to-door fixing and servicing furnaces.

In 1983, Fernand earned his propane license and hired the first full-time employee. Soon after, a second truck was added and it wasn’t long before the company jumped to four employees.

Growing Into a Local Leader

In 1991, the company took another leap forward when a full office and shop were built in St. Isidore. By 1996, Fernand’s sons, Pascal and Patrick, joined the company. Today, Fernand Denis has over 18 employees and is the industry leader for heating and cooling in Glengarry, Prescott and Russell. With hundreds of satisfied customers, Fernand Denis is also the first choice for homeowners and builders in St. Isidore, Casselman, Embrun, Alexandria, Clarence-Rockland, Hawkesbury and everywhere in between.

What Fernand Denis Stands For

Customers choose Fernand Denis because of strong family values, strong organization and innovative products and solutions. Many customers from 1976 are still customers today. The team at Fernand Denis has experts in a wide range of heating and cooling services, including furnace installation and repair, boiler installation and repair, heat pumps, wall furnaces, radiant floor heating, fireplace installation and repair, thermostats, emergency furnace service, central air conditioner installation and repair, ductless air conditioning, duct cleaning and liquid propane installation. Fernand Denis is pleased to serve all types of customers, from homeowners to builders, landlords to farmers.

Want to find out more?

Contact us today regardless of whether you’re looking for a quote, repair, tune-up or simply have a question.

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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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