7 Signs Your Furnace & Ducts are Due for Maintenance

If you’re like most people, you probably don’t think much about your furnace and ductwork until there’s a problem. But just like any other part of your home, your furnace and ducts need regular maintenance and TLC to function properly.

Regular maintenance of your air ducts and heating system would lessen the need for emergency boiler services. This extra TLC will lengthen the life of your heater. Most importantly, it will help lower your utility bills. 

Regular maintenance dramatically facilitates more straightforward repairs. This blog lists some of the most common signs that your furnace and ducts need some maintenance. It will also answer your most pressing concerns about your heater and air ducts. 

Here are seven telltale signs that it’s time to give your furnace and ducts some attention:

1. You’re Noticing More Dust Around Your Home

If you’ve been noticing more dust around your home, it could be a sign that your furnace and ducts need some attention. Dust is made up of various things, including dead skin cells, pet dander, and pollen. Over time, this dust can build up in your ductwork and furnace, making your home feel stuffy and triggering allergies. To get rid of the dust, you’ll need to have your ductwork cleaned, and your furnace serviced.

2. Your Furnace is Making Strange Noises

If your furnace is making strange noises, it’s definitely time to have it serviced. These noises can be anything from a loud bang to a high-pitched squeal and can be caused by various things, including a dirty blower wheel or a loose belt. Left unchecked, these problems can cause serious damage to your furnace.

3. Your Furnace isn’t Heating Your Home Evenly

If you’ve noticed that your furnace isn’t heating your home evenly, it could be a sign that your ductwork is leaky. When ductwork leaks, warm air escapes before it has a chance to circulate throughout your home, leaving some rooms colder than others. To fix the problem, you’ll need to have your ductwork sealed.

4. You Have Hot and Cold Spots in Your Home

Do you have hot and cold spots in your home? If so, it’s likely that your furnace isn’t sized properly for your home. When a furnace is too small, it has to work overtime to heat your home, which can cause hot and cold spots. If you suspect that your furnace is too small, you’ll need to have it replaced with a larger unit.

5. Your Energy Bills are Going Up

If your energy bills are going up, but your usage hasn’t changed, it’s likely that your furnace is losing efficiency. When a furnace loses efficiency, it has to work harder to heat your home, which can lead to higher energy bills. If your energy bills are going up and you suspect that your furnace is to blame, you’ll need to have it replaced.

6. Your Furnace is More Than 15 Years Old

If your furnace is more than 15 years old, it’s time to start thinking about replacing it. Furnaces typically last between 15 and 20 years, so if yours is on the older side, it’s likely that it’s not running as efficiently as it once was. If you’re not sure how old your furnace is, you can check the serial number to find out.

7. You’re Noticing a Musty Smell

Do you notice a musty smell when your furnace is running? If so, it’s likely that your furnace has a mould or mildew problem. Mould and mildew can cause various health problems, so if you notice a musty smell, you’ll need to have your furnace inspected.


If your furnace or ducts are showing any of the telltale signs mentioned in the article, then it’s definitely time to give them some TLC. These signs include things like strange noises coming from the furnace, unusual smells, decreased airflow, higher energy bills, and more. If you’re experiencing any of these issues, then it’s best to call in a professional to take a look and see what needs to be done.

Don’t let your air ducts become clogged with dirt and grime to avoid any health issues at home. Canada Unified Services is here to make sure that won’t happen. We are a family-owned local business providing the best cleaning services in Calgary. Whether you need carpet cleaning, house cleaning, or air duct cleaning, our team of professionals is here to do all the work for you. Contact us today to schedule an appointment.