Beat the heat with $500 off new AC special

$500 Off New AC Installation

Summer has a way of showing up all at once — and when the first heat wave hits, AC installation schedules fill up fast. If your air conditioner is aging, unreliable, noisy, or driving up your energy bills, this is the smartest time to upgrade. Beat the rush, avoid emergency breakdown stress, and lock in $500 off a new AC installation before peak demand begins.*

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Reliable Heating, Cooling, and
Water Heater Solutions—
Anytime You Need Us

When comfort can’t wait, Comfort Zone Heating & Air Conditioning is here for you—day or night. Our certified technicians provide fast, professional emergency service for furnaces, air conditioners, heat pumps, and water heaters across Cobourg and Northumberland County.

Call us for dependable repairs, expert advice, or urgent service to get your system running safely again.

Serving: Cobourg, Port Hope, Brighton, Colborne, Grafton, and surrounding Northumberland communities.

For expert HVAC service, call (905) 377-9719 or reach out to us today.

For expert HVAC service
reach out to us today.

Call (905) 377-9719

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    Why Homeowners Choose Comfort Zone Heating & Air Conditioning

    Discover why homeowners across Cobourg and Northumberland County trust Comfort Zone for reliable comfort, expert service, and lasting peace of mind.

    Licensed & Insured Technicians

    Our certified HVAC technicians are fully licensed, insured, and trained to handle all major heating and cooling systems safely and efficiently.

    Lennox Premier Dealer

    As a proud Lennox Premier Dealer, we offer high-quality equipment, expert installations, and exclusive access to manufacturer rebates.

    Locally Owned & Trusted

    Proudly serving Cobourg and surrounding Northumberland communities for nearly 30 years, built on trust and community reputation.

    Upfront, Honest Pricing

    No surprises—just fair, transparent pricing for every service we provide.

    Free Estimates

    We offer free, no-obligation estimates for new installations and replacements.

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    Preventative Maintenance Plans

    Keep your system running efficiently year-round with our custom maintenance programs.

    Flexible Scheduling

    We work around your schedule to provide fast, convenient service when you need it.

    Workmanship Guarantee

    We stand by our work. If something isn’t right, we’ll make it right—no charge.

    Labour Warranty

    All installations and repairs are backed by a comprehensive labour warranty.

    Financing Options

    Enjoy affordable monthly payments and flexible financing on new HVAC systems.

    Detailed Planning

    Every installation is carefully planned for performance, efficiency, and safety.

    Susan Giddings profile picture
    Susan Giddings
    00:58 16 Feb 26
    I had Paras come and fix my hot water tank. He was very polite, knowledgeable and explained everything. Thank you.
    Maya Langer Hill profile picture
    Maya Langer Hill
    21:19 13 Feb 26
    Hakim did an excellent job servicing our oil furnace. He was punctual, professional, and clearly knowledgeable, taking the time to explain what he was doing and ensuring everything was running safely and efficiently. The quality of his work and his attention to detail gave us real peace of mind. Highly recommend his services.
    Lori profile picture
    Lori
    17:44 11 Feb 26
    Had problems with heat pump and AJ came and fixed the problem and explained things clearly about the heat pump that nobody else ever did,he was great.I haven’t always had good experiences with comfort zone but AJ was great !
    ella macculloch profile picture
    ella macculloch
    17:21 09 Feb 26
    On Jan.24, 2026, our furnace quit in the wee hours of the morning. By 9:30 am, A.J. came and told us the news that we should get a new furnace. Quick service – we were impressed!
    The new furnace was installed on January 26, and a few days later the heat pump.
    Because we are not very tech-savvy, it seemed as if the furnace was running too often – it was the coldest time of the winter! We contacted Comfort Zone again.
    A.J. has just left and he explained – very patiently – exactly how the thermostat works; he programmed it to our specifications.
    And he ensured that we are now comfortable with our new system.
    We certainly appreciate how A.J. took the time to ease our minds. It is more difficult for our “older” minds to grasp newer concepts. But A.J. did a great job, and we thank him very much!!!
    Kathryn Larcher profile picture
    Kathryn Larcher
    18:02 30 Jan 26
    Hakim the service rep for Comfort Zone was helpful, explained in detail what the problem was and suggested other tips to help me in the future with my a/c and furnace upkeep. I’ve been very satisfied with my a/c and furnace since I purchased them from Comfort Zone Cobourg. Keep up the great service.
    Perry Dunlop profile picture
    Perry Dunlop
    01:15 30 Jan 26
    Very good experience all around for my first time using Comfort Zone, from setting up the appointment to the tech getting my furnace going again.
    A. J. got my furnace up and running again in a very timely manner and was very helpful explaining the furnace issue.
    Grant Mackay profile picture
    Grant Mackay
    21:30 23 Jan 26
    AJ was great! Came on time and was fast and courteous. Comfort Zone’s price for cleaning our gas stove was also a surprise — very reasonable for a service call. Thanks also to Lisa for fitting us in when CZ had so many other calls today.
    Phil Watts profile picture
    Phil Watts
    16:23 09 Jan 26
    Paras was excellent.
    Our furnace stopped working on a cold January day. We called and a technician named Paras arrived later in the day to diagnose it and he was able to fix it and now we have Heat.
    He was very efficient and knowledgeable about the problem we had. A very nice young man. One week later we had Hakim come. A very lovely young man to replace the temporary one put in by Paras.
    He too was efficient and knowledgeable. We are happy with the service by both Hakim and Paras.
    k batterman profile picture
    k batterman
    20:12 08 Jan 26
    Paras came and did some work on our furnace, very fast, polite and friendly:)
    mary lennox profile picture
    mary lennox
    16:17 08 Jan 26
    Hakim was great! Serviced and fixed heating issues. Service was prompt and we were kept updated as to arrival time.
    Larry Crook profile picture
    Larry Crook
    18:28 07 Jan 26
    We had furnace breakdown on Friday last week.
    Service came out -ventor motor-ordered and installed 12:00 pm Wednesday. Hakim was our service tech who installed the motor – knowledgeable, efficient and polite. He also talked to us about next steps down the road – (pressure free) as we will be looking at a heat pump next year. Awesome job! From start to finish Comfort Zone responded quickly and communicated well.

    Larry & Crystal
    Vernonville
    Lisa Jeffers profile picture
    Lisa Jeffers
    19:31 23 Dec 25
    Our heat stopped working on December 23rd. Called Comfort Zone and they sent a tech named Hakim. He went above and beyond sourcing a part to fix the furnace so we wouldn’t be without heat over the holidays. Super pleasant, excellent client service.
    Diana Wain profile picture
    Diana Wain
    15:24 22 Dec 25
    Comfort Zone was quick to action following my emergency call late Sunday night. They contacted me early Monday and the Technician arrived soon after. Paras was quick to determine the no heat issue and offered two options for me to consider. He was thorough in his explanation and I am considering my options.
    Layne MacDermaid profile picture
    Layne MacDermaid
    21:00 11 Dec 25
    Our Bosch hot water unit had been failing to heat when required. Comfort Zone dispatched AJ for the very next day and in short order, after he observed the failure, he was on the phone with Bosch support to run a variety of tests. He provided photos of the unit and its install and relayed to me that a warranty claim was authorized. A new unit is on its way. Hopefully Bosch can get the unit delivered and Comfort Zone can make quick work of the replacement job.

    [UPDATE] Bosch eventually supplied the replacement unit and Comfort Zone scheduled the install for Friday morning. In fact Jeremy and Joe were able to come early and made extremely quick work of the removal and replacement. All settings were configured as per the original unit and prolonged tests proved that the new unit (unlike the old) could supply hot water continuously. Many thanks to Jeremy and Joe and the whole Comfort Zone team.
    Lindsay Merker profile picture
    Lindsay Merker
    21:16 01 Dec 25
    Great service, we just had all of our ducts cleaned out. Sarah and Callum did a wonderful job, they were friendly and professional. Showed us before and after pictures, they were very thorough. Nice to know we will all be breathing in some clean, quality air during the cold winter months and for the next few years to follow.
    Mike Muzzerall profile picture
    Mike Muzzerall
    23:10 27 Oct 25
    Jim and Hakim dropped by to check my furnace. Quickly identified issue and offered options. Knowledgable and friendly
    Josh came by the next day to discuss replacement. Provided good info and resonablybpriced options.
    On Monday Courtney and Joe installed a new furnace. They were efficient, took care to not bump walls and doors; answered my numerous question. They kept the work area tidy. The completed the work in a timely manner.
    Comfort Zone staff and techs have provided a good experience.
    Amy Gilmer profile picture
    Amy Gilmer
    19:24 01 Oct 25
    Comfort zone’s team came in to remove an old oil furnace, oil talk, water tank and AC unit. We have an in floor heat system. They replaced our system with a heat pump, propane furnace back up, and on demand hot water. Josh H quoted to job and easily managed the rebate submission. Chris G, Jeremy, Sarah and Scott were all a pleasure to work with and managed all the work in a timely way. The office staff were fast and easy to work with too. Highly recommend.
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    Your comfort and confidence come first. Every Comfort Zone service is backed by clear promises you can rely on.

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    Reliable
    Service

    Homeowners across Cobourg and Northumberland County trust us for dependable HVAC solutions. We arrive when we say we will and get the job done right—the first time.

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    Certified
    Experts

    All work is performed by licensed HVAC technicians in full compliance with Ontario safety standards. Our team combines training with years of hands-on experience.

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    Fair & Transparent
    Pricing

    No hidden fees. You’ll receive a clear, written estimate before any work begins—whether it’s a furnace, air conditioner, heat pump, or water heater.

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    Free In-Home
    Estimates

    Planning a new system? We provide free, no-obligation in-home estimates for replacements and installations.

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    Cleanliness
    Guaranteed

    We treat your home with respect—using protective gear, floor coverings, and thorough cleanup after every job. No mess, no stress.

    Areas We Serve

    Wherever you are in Cobourg or Northumberland County, Comfort Zone Heating & Air Conditioning is here to help. Explore the communities we serve and count on our team for reliable, professional HVAC service—keeping local homes comfortable all year round.

    • Cobourg
    • Port Hope
    • Brighton
    • Colborne
    • Grafton
    • Campbellford
    • Hastings
    • Frankford
    • Stirling
    • Stockdale
    • Wooler
    • Peterborough
    • Kawartha Lakes
    • Northumberland County
    • Alnwick / Haldimand Township
    • Cramahe Township
    • Brighton Township
    • Cobourg
    • Port Hope
    • Brighton
    • Colborne
    • Grafton
    • Campbellford
    • Hastings
    • Frankford
    • Stirling
    • Stockdale
    • Wooler
    • Peterborough
    • Kawartha Lakes
    • Northumberland County
    • Alnwick / Haldimandand Township
    • Cramahe Township
    • Brighton Township
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