Oshawa Furnace, Air Conditioner, Water Heater Services

Are you seeking any heating or cooling services (Furnace, Air Conditioner, Tankless or Water Heater) for your household in Oshawa, Ontario?

Rental/ financing water heater, tankless, furnace or air conditioner easy Enbridge Gas billing service available for your convenience, no additional bills. If you’re looking for knowledgeable and professional technicians to service your HVAC heating and cooling needs then you’ve came to the right place. DeMark Home Ontario will provide you with the top quality high efficiency furnace, air conditioner, tankless or hot water heater installation/ upgrade and repair services to homeowners in the Oshawa, Ontario area.

Request Quote To ensure that you receive the best quality services on HVAC equipment in Oshawa, Ontario turn to DeMark Home Ontario your heating and cooling expert. Our Oshawa furnace or air conditioner services include:

High efficiency Air conditioner (AC) and Furnace installation and upgrade in Oshawa
High efficiency Air conditioner (AC) and furnace rent in Oshawa
High efficiency Air conditioner (AC) and furnace financing in Oshawa
High efficiency Air conditioner (AC) and furnace Purchase/ Sale in Oshawa
High efficiency Air conditioner (AC) and furnace repairs and maintenance in Oshawa
High efficiency and mid efficiency Air conditioner (AC) and furnace inspection in Oshawa
Best high efficiency furnace and air conditioner (AC) rental rates in Oshawa
Cheap and affordable high efficiency furnace and air conditioner (AC) prices in Oshawa
Chimney liner installation in Oshawa
Red tag clearance on your hot water heater, furnace in Oshawa
Rental water heater and tankless upgrade in Oshawa
Enbridge billing service available for water heaters, furnaces, air conditioners rent and finance in Oshawa

Our friendly and highly experienced staff will always be available to answers any questions you may have about your furnace, air conditioner (AC), water heater, tankless unit.

For a free consultation, estimate or to book your maintenance call please contact us:

By phone: 647-847-2998 or Toll Free 1-855-998-2998

Easy Rentals...

get total piece of mind with our High Efficiency Furnace and Air Conditioner Rental Program.

Service Area

DeMark Home Ontario servicing area for HVAC-furnaces, air conditioners, hot water heaters, tankless units includes: Toronto, GTA, Vaughan, Mississauga, Brampton, Markham, Scarborough, Milton, Burlington, Niagara Falls, Oshawa, Pickering, Ajax, Aurora, Newmarket, Barrie, Ottawa and more. For a full servicing area please click here.

Grecory Conor

15:50 31 Jul 20

We purchased and installed our new Air Conditioner through Demark. They did an awesome job, quick, clean.. would highly... recommend!read more

Chris Newell

17:11 23 Jul 20

I would give them 6 stars if I could. I had been a long term customer of another, very well recognized provider - who... trumpets that they have the largest and best service team in our area - and when my rental water heater began leaking I called their service line and was informed that it would be 4 days until they could send a tech to inspect it. I confirmed that they heard me say that the tank was actively leaking and they apologized for not being able to do anything and immediately starting upselling me on alternate equipment, while confirming that regardless it will be 4 days before anything can or will be done by them. Not being very happy with that I started researching alternate providers and am very happy to have found DeMark. Not only did they have a service tech there the next day, I have a higher quality tank than my existing provider and am paying 20% less a month for it. That does not include that they also gave me 2 months for free (as a new customer) and also took care of removing and returning my existing rental unit for no cost.Aside from quality equipment, and a great price, the contacts that I dealt with (Mike on the phone & Jason the tech) were great to deal with.I had put off dealing with replacing the tank for a while - mainly due to past terrible experiences with my existing provider, who seems to only utilize the term 'care' as part of their name and not part of their practices, but in hindsight I wish I had known how easy, and cost effective, it was for me to change providers, as I would have done so ages ago instead of waiting for the leak to force my hand.read more

Ngọc Châu Giang Nguyễn

02:49 13 Jul 20

I used to rent AC from Reliance, but then I found out they had been overcharging me the whole time. After that friend... referred Mike to me, and he is such a good man with great service. He responds quickly, he sent Eddie, the technician, to replace new AC right after. Eddie was fast and professional. He did such a nice and neat job. Mike offered me a very reasonable price even though my house is 200km away from Toronto. Highly recommend the company.read more

m Na

00:56 13 Jul 20

Hi, I am very pleased with this company. This is the second time that I am using them. This time I fixed A/C and Water... Heater in my parents house. Knowing that older people need an extra comfort zone, these guys went that extra mile to make sure everything is installed clean, professional, and on time, of course with a very reasonable price. I strongly recommend them.read more

Gerard Penney

20:57 06 Jul 20

They are very professional installers where great . Would recommend them to anybody . Great job

Mary Pog

21:27 06 May 20

We just moved into our brand new home and were shopping around for a AC because it wasnt provided by the builder. We... called many companies looking for the best monthly payment and finally we found demark home who gave us a great deal. Installation was done on time and we love the job they done. Thank you to everyone at demark home for their great work.read more

Amit Farmah

20:12 02 Apr 20

I moved my Water Heater rental from Reliance Home Comfort to DeMark Home Ontario about 5 months back. I had no issues... with the Installation process and Billing is working accurately as well. I'm happy to switch my hot water tank rental provider and definitely recommend them to everyone.read more

Silvana Rosati

05:55 28 Mar 20

My water tank finally died and I had to replace it. I am glad I found this company because I did not want to rent... with the major water rental providers again and pay at an outrageous monthly rate. The service from DeMark Homes was top notch from the beginning to the end. They installed the new tank, picked up the old and provided all the necessary paperwork required for the return of the old tank back to Enercare. My monthly rental payment is now at a fair honest price and the charges still appear on my gas bill. I would highly recommend this company!Thanks Mike for everything. Silvana Rread more

Boby S

20:12 29 Feb 20

My family needed an emergency furnace replacement because our old furnace's heat exchanger was cracked. We called... Demark very late last night and I was expecting to have to leave a message, but to my pleasant surprise, their live representative, Alex, answered my call and handled my request. I explained to Alex my situation and he was able to book a furnace replacement appointment with one of their technicians for the following morning. The technician, Eddie, was great. He arrived on time and completed the job without any mess and explained to me how to use my new furnace and thermostat. The service was pleasant the whole way through, from my initial phone call to the installation of my furnace. I commend Demark Home Ontario for their exemplary customer service as they exceeded all my expectations and found an ideal solution to my problem. Thank you to Alex, Eddie, and the rest of the team.read more

Bimala Rani

18:39 29 Jan 20

Probably the best company out there. I've had business with them twice this year, I replaced my water tank and the... furnace, Unbelievable reply he even answered my message at 1:00 am and had an installation the day after. It was absolutely …fantasticread more

Ghalib Fakih

17:59 15 Jan 20

Probably the best company out there. I've had business with Mike twice this year, I replaced my water tank and the... furnace, Unbelievable reply he even answered my message at 1:00 am and had an installation the day after. It was absolutely amazing quality, service and price. Contractor that came to the house was super nice knowledgeable, and mainly very clean. I will defiantly recommend DeMark Home Ontario to any friend, family, or friend.read more

Tran Tran

19:04 19 Jun 19

Excellent same day service! Very clean & fast service from removal of the old water tank in the basement to... installation new tankless rinnai. Their team is professional, friendly and reliable. I strongly recommend Demark home ontario.read more

mike rer

04:02 08 Mar 19

My family just got a new furnace installed by Demark Home Ontario. Their technician David did an excellent job. No... complaints. The price was very reasonable as well. We chose to sign up for the rent to own program. Thanks again, Demark. I’ll recommend your services to my friends and neighbours.read more

Rent to own Furnace Program

Rent to own Air Conditioner Program

Rent to own Furnace Program

Rent to own Air Conditioner Program

Rent to own Furnace Program

Rent to own Air Conditioner Program

Oshawa Furnace, Air Conditioner, Water Heater Services

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