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Greater Toronto’s Premier Home Services Company


When it comes to maintaining your Heating, Air Conditioning, Gas & Air Filtration Units, DeMarco Mechanical Services Inc. offers a variety of programs that can be scheduled on regular basis. We work in residential and commercial properties across the GTA, offering the best quality service while maintaining the health and well-being of each of our customers and their installed products.

HVAC Preventative Maintenance

Preventative maintenance is essential to keep any heating and cooling system running safely and at its full efficiency capability.  As units age, their components suffer wear and chances are there will be a failure.  Having an annual inspection done by a licensed technician can mean the difference between you being comfortable and worry free all year round and waiting for a part for your furnace at -25.  Gas fired appliances like furnaces and boilers have heat exchangers that transfer heat from flame to either air or water to heat your home.  These heat exchangers undergo a tremendous amount of stress in the heating process.  If the exchanger becomes damaged the possibility of carbon monoxide being produced is very high.  Without routine maintenance, these parts will be overlooked and the safety of the occupants in a home will be jeopardized.  Any heating or cooling system has many moving parts and also move air.  If maintenance is consistently ignored.  Dust and other particles can clog up your system, which will cause expensive repairs and premature failures.

For more information on our maintenance programs, please feel free to call our mechanical contractors and we will help you achieve your goals in a cost-effective way.

Air conditioner Preventative Maintenance

Heating and Cooling Maintenance