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Duct Cleaning

Do you need Furnace Repair or Replacement?

When is time for a furnace repair or replacement? If your gas furnace is failing and causing you problems then it may be a time for a furnace repair or replacement. If it is cold outside and furnace is the fundament of your home comfort but you can no longer rely on it then you need to look at few factors when deciding on furnace repair or replacement. Often it is best to contact your local HVAC contractor and seek Read More...

Prepare Your Home and Yourself for Fall and Winter

Fall honeymoon is over!!!!!! Now fall is officially here, it's time to prepare your house heating system These 8 simple tasks (Prepare Your Home for Fall and Winter), most of which you can do yourself, will help you stay warm, safe and energy-conscious this winter. Tune up your heating system Make sure that the heating vents are not blocked or covered by furniture, carpeting, or curtains. Clean or replace dirty furnace filters or better have a professional from a reputable HVAC company to check your Read More...

Changing, replacing furnace air filter on your Furnace/ Air Conditioner HVAC system in Toronto, GTA, Ontario, Heating and Cooling Tips.

DeMark Home Ontario, is the HVAC specialist in the GTA area including Toronto, Newmarket, Oshawa, Brampton,Mississauga and more and we focus on the installations and upgrades of energy efficient rental hot water heaters, tankless, furnaces and air conditioners. We would like to share important information with all consumers and our customers about the importance of replacing furnace air filter in your HVAC heating and cooling system. Firstly air quality is very important to your over all well being and total Read More...

Season’s Greetings from DeMark Home Ontario to all our customers and visitors.

This Holiday Season we would like to extend our appreciation to our customers who made our progress real and possible. There is no better time than this to say “Thank you”, and to wish you and your families blessings, happiness and joy this time of the year and through out the whole year. We hope that you and your families have a great holiday season full of memories that will last a lifetime long. We thank you for being our Read More...

Dryer Vent Cleaning Safety Tips. Don’t wait until it’s too late.

Dryer vent fires are the leading cause of most home fires in the United States and Canada. Dryer vents are usually neglected but little do most people know that the lint trap on a dryer (even that of a new one), is highly flammable. This can set the dryer under fire, which could spread through the vent system and throughout your home. When a dryer does its job of removing around half pound of water, the lint trap absorbs the Read More...

NO HEAT ? Toronto Furnace Repair, Maintenance or Upgrade. Same Day Service

DeMark Home Ontario Inc is a supplier of Home Services to customer across Ontario. Our main goal is to provide fast, reliable and professional home services to our customers. Whether you need Toronto furnace repair, maintenance or upgrade to high energy efficient equipment in GTA we will be there to help you. No Heat? For Emergency Service click here We upgrade and replacement mid efficiency gas furnaces to high efficiency furnaces and offer variety of brands and furnace efficiency levels in Toronto and GTA Read More...

Keep Your Ducts Clean and Improve System Efficiency. HVAC

We’ve all heard the saying, “out of sight, out of mind.”Unfortunately, if you’re like most busy homeowners, this phrase may ring too true when it comes to your air conditioning and heating ducts. Your home may have dirty, poorly maintained ducts, with the negative effects showing up every month on your energy bills. Following are some signs that it may be time to clean your ducts: Mold – If mold can be seen on any part of your heating and cooling Read More...

We are happy to announce the launch of our new website

DeMark Home Ontario Inc new website focuses on not only providing customers with great products and services at very competitive rates but also an educated insight on types and sizes of the equipment offered, energy savings tips and rebates, maintenance of your current equipment, protections programs and more. We are also proud to announce our partnership with Summitt Home Services to offer our customer an extended line of products and services. Many customers find themselves in situations where they need to Read More...
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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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