Looking to hire HVAC Contractor?

Here are some benefits to hire HVAC Contractor to install your heating system.

If you are replacing your heating system to a new high efficiency unit do not attempt to do it yourself unless you are a Licensed Gas technician, hire HVAC Contractor who is professional in heating and cooling installations such as DeMark Home Ontario to do the job. If you are attempting to save some money and install heating system on your own there are many things that could go wrong that can cost you much more than if you hire HVAC Contractor to do the job. Benefits of hiring a professional HVAC Contractor outweight any money that you can save by installing heating system yourself. You will be grateful for a professional experience you will receive when you hire HVAC Contractor who is fully licensed and professional.

When you hire HVAC Contractor they can help you choose the right system for your home.

The best way to purchase and install new high efficiency furnace is to consult with a professional. Every home is different and may require different equipment size and operating levels. Professional HVAC Contractor will evaluate your home needs and suggest the best solution for your specific home requirements and your needs.


Professional HVAC Contractor can educate you on indoor air quality

Many home owners don’t realize that indoor air can be quite polluted. Consulting with HVAC Contractor abut air purification and filtration systems, humidifiers and UV whole home air filtration systems can significantly improve the quality of the air within your home. A professional can suggest where it is best to install the units and explain how to properly take good care and maintenance of the equipment for the best home air quality.

You can void the warranty of the equipment if you attempt to install it yourself

Most furnaces come with 10 years parts manufactory warranty. However if you attempt to install heating system on your own this can fully void your warranty. Most manufacturers require that you hire HVAC Contractor who is licensed to install gas appliances such as furnace. Moreover if you unintentionally damage part or a component during the installation this could cause you even more expenses that if you trusted installation to a professional.



At DeMark Home Ontario we are committed to providing customers with professional heating and cooling installations by fully licensed and highly trained professionals. We are happy to help you with heating and cooling needs! Call us at 647-847-2998 or submit your request online.

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Upgrading to a high-efficiency heating and cooling system offers more than energy savings.

Take advantage of these rebates today!


This item comes with absolutely free standard installation. We’ll ensure that the product is completely installed to code and fully functioning prior to leaving.


Great news! Receive a brand new digital thermostat absolutely free when renting this HVAC product from DeMark Home Ontario.


Great news! When renting a furnace or air conditioner, you’ll get your first 2 months absolutely rent free.


Great news! When renting a furnace and air conditioner together, you’ll get your first 3 months absolutely rent free.


This product carries a manufacturer warranty and we’re happy to explain it in full to you. Feel free to get in touch with us for more information or see the Warranty Information tab for more information


If your order is placed and confirmed by 11am, we can have your HVAC product installed within the same day.

Certain conditions apply, not available on all products.


This water heater is subject to reduced rental rates based on the DHO discount program. Save money on your bill every single month!

Some conditions apply


Save money on this item when buying it along with a qualifying high-efficiency furnace or air conditioner.

Some conditions apply


Great news! When renting a qualifying water heater, you’ll get your first 2 months absolutely rent free.


Promotional code can be found on the eFlyer, Brochure or promotional email that you received from us.

*If you are an existing customer please refer to the mail or email that was sent to you after the installation of your equipment as it contains your promotional code. If you are having troubles locating it please call us and one of our Customer Service Representatives will be happy to assist you.

  • Please fill out the form below in order to schedule service and be sure that your request will be processed promptly and you will hear back from us shortly.

Notice for Power Vent Water Heater Customers

Effective August 2007, gas code requires technicians working on venting to replace black ABS vent pipe with white UL-certified vent pipe.

We will upgrade your venting pipes at no additional cost.

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