Servicing the Ottawa region’s Heating & Cooling Needs for over 25 Years.

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We sell and install high-efficiency & ultra high-efficiency furnaces from Amana, Goodman & Daikin.


We sell and install a wide range of high-quality and efficient air conditioners from  Amana, Goodman & Daikin.


Ductless air conditioning is the future of keeping cool. These systems provide flexible & efficient cooling options.


Harding Heating & Air Conditioning sells and installs high-quality and efficient air quality and cleaner products.


Schedule your free, no-obligation quote for a new furnace, air conditioner or other home comfort system.


Contact us to arrange service, repair, inspection or cleaning of any of your heating, cooling or indoor air quality systems.


Reach out with any questions you might have about your indoor comfort.

Many Reasons To Choose Harding

To guarantee you have the best possible service or installation experience, all our technicians are highly certified and have undergone a complete background check. Here at Harding Heating & Air Conditioning we are proud of our track record.

  • Locally owned and operated
  • Certified technicians
  • Serving the Ottawa Region for 25 years
  • System Protection Plans Available
  • HVAC System Financing Available
  • Daikin Comfort Pro Dealer
  • Best warranties in the industry
  • Licensed professionals
  • Customer Service Oriented
  • BBB Accredited Business

Recent News

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Heat Pump Installation Grants In Ottawa
4 Jul 12:05 pm

Heat pumps have become increasingly more popular in both Ottawa and Southern Ontario homes due to their...

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Is Your Old Thermostat Costing You Money?
8 Jun 09:00 am

The cost of keeping a home cool throughout an Ottawa summer can leave any homeowner looking for...

Harding’s Daikin FITTM System Installation

Click for the BBB Business Review of this Heating Contractors in Carp ON

Habitat for Humanity

We’re proud supporters of Greater Ottawa Habitat for Humanity

Upgrade Your Comfort Today!

If you want to upgrade your heating or cooling system, don’t let a small budget hold you back!

Team Harding is proud to offer affordable & transparent financing options through
EcoHome Financial and FinanceIt.

Apply online with Financeit!

Apply online with EcoHome Financial!

Customer Reviews

“Harding delivers what’s promised, when promised, at quoted price. And has staff who know what they’re looking at. Hard to ask for more from an HVAC service provider.”Steve Piercey


“Great service, that’s why we’ve been with this service company since nearly 17 years. Highly recommend this furnace servicing company.”Lawrence Cynthia


“Reached the emergency hotline for a furnace issue. Understandably they were very busy on a snowy evening but Eli managed to drop by just before midnight to get it working!” – Zayan Khandker


“Fantastic customer service. Furnace died, got a quote from Brian and he was great and explained the different furnaces. Bonus was they were able to come early the next morning so I wouldn’t be without heat for another night! Highly recommend Harding to anyone, fantastic customer service, which seems to be missing from some companies these days! Thank You Harding! Great job!”Tammy T


Free Quote or Service Request

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Furnace Installation & Service or Repair

Harding Heating and Air Conditioning is Ottawa’s premier heating provider. We sell and install high-efficiency furnaces from Amana, Goodman and Daikin. We can also diagnose and repair any issues with your current heating system.

New Furnace Installation

We have a range of high-efficiency furnaces that can make a noticeable difference in your monthly energy bills once installed. Contact one of our comfort advisors to schedule your FREE, no-obligation installation quote.

Existing Furnace Repair & Furnace Service

To ensure your heating system is running at peak efficiency, it’s always recommended to have yearly furnace service maintenance. A licensed technician will perform a tune-up, cleaning and safety inspection to ensure everything is working as it should. If you require additional repairs, our expert staff have the knowledge to diagnose and correct any issues.

Air Conditioner Installation & Service or Repair

Ottawa winters can be bitterly cold and summers can be blistering hot. Ensure your air conditioner is running efficiency all summer – if you require air conditioner repair or are looking to upgrade; make Team Harding your first call.

Air Conditioner Installation

As the Ottawa Region’s premier cooling provider, we proudly sell and install Daikin, Goodman and Amana central air units. We offer competitive parts and labour warranties on our air conditioners and guarantee your cooling systems will be installed as scheduled or we will provide you with a FREE 5-year maintenance package.

Air Conditioner Repair & Service

Team Harding stands behind all of our repairs. We guarantee that all air conditioner repairs are done right the first time or the repair is free. In the unlikely event a repair fails during the season we will repair it again at absolutely no cost to you.

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