Proudly Serving Eastern Ontario for 40 years!

A little bit about who we are and what we do…

    For 40 years, Denoco has been your local expert in all things heatingair conditioning and plumbing – providing comfort to Eastern Ontario homes.


    Denoco is a one-stop shop for completion of everything from roughing in plumbing for basements or new additions, to new bathrooms and kitchens. From frozen pipes to waterline and drainage re-piping, water pressure issues to sump pump repair and replacement. We offer many services to residential and light commercial markets. We at Denoco can do anything from address your emergency heating issues; supply, install and service furnaces, heat pumps, radiant in- floor systems, hot water tanks, air conditioners; to plumbing new and existing homes. These services are just the tip of the iceberg in terms of what Denoco has to offer. To add to their offerings, Denoco is also the local dealer for everything Diakin!


    Our polite, professional and competent tradesmen install, repair and maintain furnaces (gas and propane), air conditioning units, and offer plumbing services. Our tradesmen are certified in an array of specialties including 306A Plumbing, Gas Tech 2, 313A Refrigeration & Air Conditioning Systems Mechanics, and 308A Sheet Metal. But they are also able to guide customers through what can be an intimidating selection process, discussing the pros and cons of what is available – to help the client decide how best to heat or cool their home. It comes from a practical and financial point of view – from experts with answers.


    Denoco’s owner, Dennis O’Connor likes to think outside the box to provide the best possible service to his customers. 


     Denoco’s dedicated staff attend manufacturers’ service classes, as often as possible, to ensure their skills are consistently upgraded and to guarantee they are learning the newest trends and techniques in the market.


     All of this lends itself to client fulfillment. “We guarantee customer satisfaction,” O’Connor says. “We have gained a lot of expertise over the years and we know you will benefit from that.Whether it’s a plumbing service call for your kitchen sink or the heating and air conditioning installation for your new custom home or business, we expect that you will be as proud of our work as we are.”