Most homeowners don't realize their dryer vent is clogged until it becomes a fire hazard — or until their dryer stops working entirely. Here are seven warning signs that mean it's time for professional cleaning, ranked from earliest to most urgent.
1. Clothes Take Longer to Dry
This is the most common early sign. If a single load takes 60+ minutes when it used to take 30-40, your vent is restricted. Restricted airflow means moisture can't escape, leaving clothes damp at the end of a normal cycle.
Many homeowners assume their dryer is getting old and needs replacing. In reality, a $189 vent cleaning fixes the problem 70% of the time — saving you $800-1,200 on a new dryer.
2. Dryer Becomes Unusually Hot
If your dryer's exterior, the laundry room, or the clothes inside feel hotter than normal, that's a sign of severely restricted airflow. The dryer is overworking and trapping heat it can't expel.
This is dangerous for two reasons: it's a fire risk from lint ignition, and it dramatically shortens the life of your dryer's heating element and thermostat.
3. Burning Smell During Operation
A burning lint smell is an immediate red flag. Stop using your dryer right away and call for professional inspection. This indicates lint has accumulated to the point where it's heating to dangerous temperatures — you are one load away from a potential fire.
Don't wait. Stop using your dryer and book a same-day inspection. We offer emergency service across Calgary.
Book Emergency Service4. Lint Around the Dryer or Vent Opening
If you see lint accumulating around the dryer, on the floor behind it, or near the exterior vent opening, your vent is so clogged that lint is escaping the system. This means the duct is substantially blocked and airflow is severely compromised.
5. "Check Vent" Warning Light
Modern dryers have airflow sensors that detect restricted venting. If the "Check Vent" or "Clean Filter" light is on (and you've already cleaned the lint trap), your vent duct needs professional cleaning. These sensors exist because manufacturers know that restricted vents damage dryers and cause fires.
6. Excessive Humidity in Laundry Room
If your laundry room feels humid, you notice condensation on windows, or you see moisture on walls when the dryer runs, your vent isn't expelling moisture properly. This moisture can also cause mold growth — a separate health concern beyond fire risk.
7. It's Been Over a Year
Even without other signs, vents should be professionally cleaned annually. Don't wait for warning signs — by the time you notice symptoms, the risk is already elevated. An annual cleaning is preventive maintenance, just like changing your furnace filter.
What to Do Next
If you recognize any of these signs, professional inspection is the right move. At The Dryer Vent Cleaning Co., we provide same-day service across Calgary and surrounding areas with camera-verified results. Book online in 60 seconds or call (236) 982-4870.
