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At Aire One Heating & Cooling in Kitchener-Waterloo, we can maintain and repair most makes and models of boiler systems, even ones we don’t sell. We also provide 24/7 emergency services. Contact us today to speak with one of our experts and learn about our maintenance plan.


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Every appliance in your home has a lifespan, including your boiler. Inevitably, things corrode, break down and fall apart. Fortunately, there are steps you can take to lengthen the lifespan of your boiler.


For example, regular maintenance can prevent inconvenient and costly repairs and help your boiler operate at maximum efficiency for many years. If your system does break down, the technicians at Aire One Heating & Cooling Kitchener-Waterloo are available 24/7 and can promptly visit your property and get your unit running again.


Boiler systems consist of many parts, including burners, elements, pipes, gauges and fittings, and if something goes wrong in any one of these areas, the entire unit won’t function. Common boiler problems include:

Leaks. Water pooling underneath your boiler can be caused by a faulty component or seal, a corroded part or excessive water pressure.

Boiler kettling. Lime and calcium deposits can restrict water flow to your boiler, causing the water to overheat and boil.


Frozen condensate pipes. Freezing is common in cold climates. You can thaw your condensate pipe by pouring warm water over it.


Low boiler pressure. Low pressure may indicate a leak, an obstruction in the pipes or a faulty pressure valve.


No heat or hot water. A lack of heat could mean a broken part or a defective thermostat.​​


Strange boiler noises. Rumbling and groaning sounds usually mean there’s air in the system. Bleeding the radiators can fix this problem.


The thermostat fails to trigger the boiler. The thermostat could be set incorrectly, or you may have to replace it.


The pilot light goes out. If your pilot light doesn’t stay lit, you may have a faulty thermocouple. Additionally, check for strong drafts around your boiler that may blow the flame out or double-check if your natural gas supply has been turned off.

Fortunately, we offer water boiler services at discounted rates for our maintenance plan for homes in the Kitchener area. With scheduled, regular visits, a technician can catch minor problems before they become expensive repairs.

  • How often should I service my boiler?
    A minimum of once a year is recommended. Heating systems come on an average of 3-8 times per hour during the heating season, these numbers can change dramatically in different style of homes and with different thermostats, but this is a rule of thumb in our industry. There is a lot of wear and tear on the appliance and setting can go out of calibration. Also, it is a requirement by most manufacturers and home insurance companies.
  • Can I add new zones to my existing boiler heating system?
    It depends if the btu output of the radiators has reached the maximum btu output the boiler can support. Having a professional to come out and calculate is your best bet.
  • How will I know if the boiler I select will work properly for my home?
    Each room will have a radiator and every radiator has a specific btu output . We calculate the total of the radiator btu outputs, match that with a heat loss/heat gain calculation for the home and that is how we size a boiler system for your home.
  • How does a boiler work to heat my home?
    A boiler is a device that heats water and then distributes the hot water throughout your home to warm the indoor air. There are two main types of boilers: hot water boilers and steam boilers. Hot water boilers heat water to a temperature of about 82 C. The hot water is then circulated through a system of pipes and radiators throughout the home. The radiators give off heat to the surrounding air, which warms the home. Steam boilers heat water to a temperature of about 100 C, which is the boiling point of water. The steam is then distributed through a system of pipes and radiators throughout the home. The steam condenses back to water on the radiators, which gives off heat to the surrounding air, warming the home. In both hot water and steam boilers, the water in the pipes cools and returns to the boiler after heating the interior spaces. The water is then reheated and recirculated throughout the home. Some boiler models also double as a water heater, eliminating the need for a separate water heater unit. The efficiency of a boiler is measured by its Annual Fuel Utilization Efficiency (AFUE) rating. The AFUE rating is a percentage of the fuel that’s used to heat the water that heats the home. The higher the AFUE rating, the more efficient the boiler. Boilers with medium levels of efficiency have ratings of 90 to 93 per cent.
  • What is the average lifespan of a residential boiler?
    The typical residential boiler can last between 15 and 20 years. You can find the year your boiler was manufactured by checking the unit’s rating plate. You can also call the manufacturer and give them the unit’s serial number to find out how old your boiler is. If your boiler unit is more than 15 years old, you should consider replacing it with a new boiler, high-efficiency gas furnace or heat pump.
  • Are there any government rebates available for my boiler upgrade?
    Unfortunately, Ontario homeowners in the Tri-Cities area wanting to invest in a new boiler system for their homes aren’t eligible for rebates under the Home Efficiency Rebate Plus (HER+) program. Heat pumps are the only home heating system covered under HER+, whereby homeowners can get more than $10,000 in rebates on a heat pump installation. This program combines the Enbridge Gas rebate program and the Canada Greener Homes Grant.



Boilers are highly efficient, but they require seasonal care and consideration to work efficiently, like all HVAC equipment. Our professional specialists will reply promptly if your system breaks down and will arrive to mend and service whatever goes wrong. Boiler services at decreased rates are offered as part of the maintenance plan. Right from installation to annual maintenance and upkeep, we take complete care of your boiler to ensure that you and your family can be comfortable throughout the cold winter months without electricity bills hitting the roof. Talk to our experts to know more.


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The choice between repairing or replacing your boiler depends on several factors, including:

  • Safety. If your hot water boiler system is old and outdated, it may not meet current safety guidelines. If this is the case, replacement may be the best option.

  • Cost of the repair. It can be challenging to find replacement parts for older boilers. Moreover, new parts can be expensive. Therefore, it may be more economical to buy a new boiler.

  • Energy efficiency savings. Even if a technician can fix your boiler, it may be cheaper over the long run to invest in a high-efficiency boiler now.

  • Frequency of repairs. If you see your boiler repair technician too often, you should consider replacing it.

  • Future lifespan. Think of the lifespan of your current boiler and the costs associated with keeping it alive. Remember, repairs for new models will be covered by a warranty.

A consultation with an experienced boiler technician with Aire One Heating & Cooling Kitchener-Waterloo can help you decide the best way forward.


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Excellent Job in All Respects

Junior did an excellent job in all respects. Clean, precise and timely installation of our AC/heat pump unit . Courteous and very careful to ensure healthy interactions by wearing masks and providing social distancing. The installation was seamless and we were impressed by the attention to detail and the cleanliness of the site post installation . Highly recommend Junior and AireOne for any heating/cooling project.

~ James M.


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