Is Your Furnace Leaking?

Do you notice water under your heating system and your furnace leaking?

Coming across water underneath your furnace is any homeowner’s nightmare. Is it your furnace leaking or is plumbing issue?  Should you call service technician or is something that can be easily fixed on your own? These are very common questions any homeowner can ask. DeMark Home Ontario’s heating and cooling experts are here to help you understand some of the common issues for furnace leaking.

Your Drain can be clogged

Condensation from high efficiency furnaces will flow to the floor drain or through the drain pump. If the line or the floor drain get clogged this will prevent condensation from flowing out and will create the leak around the furnace and under it.  Annual tuning up and maintenance helps to prevent furnace leaking but neglecting furnace maintenance can cause damages to flooring, ceiling or other damages to your home. If you notice your furnace leaking remove the drain hose and clean it and if this doesn’t help then call DeMark Home Ontario for a service.

Humidifier Issue

If your furnace is leaking water it can be humidifier leaking inside the furnace. If water is leaking inside your furnace it can cause further damages to your heating system and its internal elements and parts. It is best to call your heating and cooling contractor for a furnace service right away if you this is the issue.


Standard efficiency furnace should not be creating any condensation so if your furnace leaking it may be due to the flue piping not properly sized. The warm exhaust may be cooling inside the pipe and creating condensation. This condensation streams back into your furnace and creates furnace leaking issue. Call service technician to fix the issue before your heating system stops working.


If you notice water coming underneath your water and you think your heating equipment is leaking then call DeMark Home Ontario heating and cooling expert. Our service technicians are knowledgeable and can easily determine and fix your heating system issue. Do not wait until your issue creates bigger problems. Call Today at 647-847-2998 or submit your request online

Customer Rating of 5.0
based on 41 Google reviews

  • Get A Quote Today! Free in-home estimate!
  • This field is for validation purposes and should be left unchanged.

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.

  • Forum Registration

  • Forum Rules

    Registration to this forum is free!
    You must abide by the rules and policies detailed below. If you agree to the terms, please check the 'I agree' checkbox and press the 'Register' button below.

    Although the administrators and moderators of DeMark Home Ontario Forum will attempt to keep all objectionable messages off this forum, it is impossible for us to review all messages. All messages express the views of the author, and DeMark Home is not responsible for the content of any message.

    By agreeing to these rules, you warrant that you will not post any messages that are obscene, vulgar, sexually-oriented, hateful, threatening, or otherwise violative of any laws.

    The owners of DeMark Home Ontario Inc reserve the right to remove, edit, move or close any thread for any reason.


Do NOT follow this link or you will be banned from the site!

Send this to a friend