

Deal Cannot Be Combined With Any Other Offer
The Dunn Heating & Cooling Difference
Certified Technicians Providing Exceptional Service
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All our installations are guaranteed for 2 years from the date of installation.
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We have expertise you can trust with over 50+ years of experience in the HVAC industry.
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Dunn Heating has been based in Kitchener-Waterloo since 1973. We’ve had a lot of time to get to know our neighbours.
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Expert service whenever you need it, for no extra charge – twenty-four-hours a day, seven days a week.
Is It Time to Replace Your Air Conditioner?
With time and regular use, even the most well-maintained air conditioners will eventually reach a point where replacement is a more viable option than repair. One key indicator that it may be time to replace your air conditioner is its age. Generally, air conditioning units have a life expectancy of 10 to 15 years and even up to 25 years with lighter use and proper maintenance. However, if your system is approaching or exceeding this range, it becomes increasingly likely that you'll experience frequent breakdowns and reduced energy efficiency.
Consider energy assessments for older systems; replacing them can lead to substantial savings on utility bills and reduce your carbon footprint. Opting for a modern air conditioner not only improves cooling efficiency but also supports a sustainable environment by using better refrigerants and advanced technology.
Some signs that you may need to replace your air conditioner include:
- Frequent breakdowns (especially for the same problem)
- Your unit needs an extremely expensive repair
- Rising energy bills
- Inconsistent temperatures throughout your home
- Excessive noise while running
Additionally, older systems often use outdated refrigerants like R-22, which is being phased out due to environmental regulations and can be costly to replace or recharge. R-22 can harm the environment, so modern systems utilize new, energy-efficient refrigerants that are better at transferring heat and not as harmful to the planet.
Enjoy Efficient Cooling with AC Maintenance!
Regular air conditioning maintenance can help protect your cooling system from costly breakdowns and even help you save money on your energy bills! For this reason, we strongly recommend having your air conditioner maintained at least once a year. The best time to schedule an air conditioning maintenance service is during the spring, before the onset of the hot summer months, but you can and should schedule at any time, particularly if it has been some time since you last had your air conditioner professionally serviced.
During a maintenance visit, a trained technician will perform a comprehensive inspection and cleaning of your unit. This typically includes checking and cleaning filters, inspecting electrical connections, measuring refrigerant and pressure levels, and examining components for wear and tear. Additionally, the technician will lubricate moving parts, test the system's functionality, and identify any potential issues before they escalate into significant problems. This proactive approach helps maintain optimal performance, reduces the likelihood of unexpected breakdowns, and can ultimately save you money on costly repairs. Likewise, by addressing any minor issues beforehand, you can avoid the inconvenience of a malfunctioning unit during a heatwave.
Regular maintenance can also extend the life of your air conditioner, ensuring it runs efficiently for its full expected lifespan. This thoughtful investment in upkeep can prevent premature replacements and support sustained energy savings. Furthermore, a well-maintained unit ensures a comfortable and consistent indoor climate, giving you peace of mind even during extreme weather conditions.
Make your comfort a priority by scheduling an annual check-up for your air conditioning system well in advance of the summer season. Schedule yours by contacting Dunn Heating and Air Conditioning today with our online contact form.
FAQs About Air Conditioning Services in Kitchener
How Often Should I Service My Air Conditioner?
To ensure optimal performance and avoid costly repairs, it's recommended to service your air conditioner at least once a year. Ideally, this should be done in the spring before the hot months intensify, as this allows your system to be in top shape during peak usage. Regular check-ups can enhance your AC's longevity, help maintain energy efficiency, and identify potential problems before they worsen. Choosing a reputable local service provider like Dunn Heating and Air Conditioning ensures a thorough maintenance process, including cleaning, inspections, and necessary adjustments to keep your home comfortable throughout the summer.
What Is Involved in an AC Inspection?
An AC inspection at Dunn Heating and Air Conditioning is a comprehensive process designed to maintain your cooling system’s performance. It generally includes a thorough cleaning of components such as coils and filters, checking refrigerant levels, assessing the thermostat for correct operation, and inspecting ductwork for any blockages. Technicians also perform tests to verify system efficiency and safety, adjusting any parameters as needed. This detailed inspection helps prolong the life of your unit, improves air quality, and prevents unexpectedly high energy bills, establishing a stable and reliable system for those scorching Kitchener summers.
Why Is My Air Conditioner Leaking Water?
A leaking air conditioner can be a sign of several issues, such as a clogged condensate drain line, low refrigerant levels, or a damaged drain pan. The humidity levels in Kitchener during the summer can amplify these problems by increasing condensation. Addressing leaks promptly is crucial, as they can lead to water damage within the home and reduced system efficiency. At Dunn Heating and Air Conditioning, our skilled technicians can swiftly identify and resolve these leaks, ensuring your AC continues to run smoothly without further incident or expense.
How Can I Improve My AC’s Efficiency at Home?
Improving your air conditioner's efficiency can significantly reduce energy bills and enhance comfort. Simple steps like regularly changing air filters, ensuring vents are unblocked, and using a programmable thermostat can make a big difference. Additionally, shading your unit from direct sunlight and sealing any gaps in your home’s insulation can prevent cold air from escaping. Consider speaking with Dunn Heating and Air Conditioning about further energy-efficient solutions tailored to your home's specific needs, potentially utilizing the latest technologies available from our Lennox products.
When Should I Consider Upgrading My Air Conditioner?
Upgrading your air conditioner should be considered when your current system is over 10-15 years old, experiences frequent breakdowns, or doesn't cool your home effectively. Transitioning to a new, energy-efficient model can decrease your utility costs and increase comfort levels. With advancements in eco-friendly refrigerants and smart technology, new units offer improved SEER ratings that reduce environmental impact while maintaining excellent climate control. Consulting with Dunn Heating and Air Conditioning can guide you through this process, helping you choose an upgrade option that maximizes benefits and fits your budget.

Hear From Our Happy Customers
At Dunn Heating and Air Conditioning, your satisfaction is our priority! See for yourself what our customers have to say about working with us.
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“Professional, efficient, courteous and explained the install clearly. Gave updates on timing and cleaned up all the work sites.”- J RD
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“He was on the phone immediately setting up the next steps. Sean was very professional and personable.”- Loyalkey O.
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“The Dunn tech was able to correctly diagnose my issue, which unfortunately had to do with electrical wiring so he wasn't able to fix it, but did point me in the right path to get an electrician to finish the job.”- Bryant L.
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“unn provided same day response to our problem and the technician, Dave, was highly knowledgeable and experienced.”- Rod J.
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“Gary Wallace completed our annual furnace and AC inspection today and did a thorough job. He took his shoes off when in the house and was happy to explain what he was doing and answer any questions.”- Jennifer D.
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“Ricardo showed up during the scheduled time slot, explained what needed to be fixed, gave us the pricing upfront, returned to the shop to get the part, and our AC was up and working not even two hours after he knocked on our door.”- Lori S.
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“Dunn did a great installation. Very thorough and organized. They took their time and got all the details done right.”- Harry D.
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“Excellent client experience from start to finish. Trevor was great. He listened to our needs and suggested the right ductless AC for the room.”- C.T.

We’re proud to offer ENERGY STAR® certified products, the gold standard for measuring energy efficiency in North America. Whether you’re looking for a furnace, air conditioner, water heater, or heat pump, all products with the ENERGY STAR® label have undergone rigorous testing for energy efficiency. For you, this means lower emissions and a lower energy bill.
