Why does my dryer take forever to dry clothes in my Toronto condo?

A dryer that takes two or more cycles to dry a normal load almost always points to a restricted or poorly routed dryer vent, and Toronto condos are particularly prone to this problem because of long vent runs, shared chases, and building-imposed venting constraints. Before assuming the dryer itself is failing, the exhaust path needs to be investigated — in most GTA condo situations the appliance is fine but the air simply cannot escape fast enough.

Condo dryer vents in Toronto high-rises and mid-rises often run 20 to 40 feet or more from the unit to the exterior wall or rooftop termination point. Every foot of duct and every elbow adds friction that the dryer's internal blower must overcome. A standard residential dryer produces roughly 100 to 200 CFM of exhaust airflow, and manufacturers typically rate maximum equivalent vent length at 25 to 35 feet depending on the model. Once you factor in elbows — each 90-degree turn adds roughly 5 feet of equivalent length — many condo installations exceed the dryer's rated capacity from the day they are installed. The result is sluggish airflow, moisture that cannot escape, and drying times that stretch to 90 minutes or longer for a load that should finish in 45.

Lint accumulation compounds the problem over time. Even with a clean lint trap, fine lint particles pass through the screen and collect along the interior walls of the vent duct, at joints, at elbows, and especially at the exterior termination flap. In Toronto's climate, the combination of humid dryer exhaust and cold exterior temperatures during winter creates condensation inside the vent run. That moisture makes lint stick to duct walls far more aggressively than it would in a dry climate, and in severe cases the condensation can freeze near the exterior cap, partially or fully blocking the vent outlet during cold snaps. This seasonal blockage is extremely common in GTA condos and explains why drying performance often worsens noticeably between November and March.

Start by checking the exterior vent cap — if the flap does not open freely or you cannot feel strong airflow when the dryer is running, the vent is restricted. Next, have the entire vent run professionally cleaned. Legitimate dryer vent cleaning in the GTA costs $100 to $200 and should be done annually, though condo units with long runs benefit from cleaning every six to eight months. If cleaning does not resolve the issue, the duct routing itself may need modification. Replacing flexible foil or vinyl vent hose with rigid or semi-rigid aluminum duct reduces friction and lint accumulation significantly. For runs exceeding the dryer manufacturer's rated length, a UL-listed inline dryer vent booster fan ($150 to $400 installed) can restore proper airflow.

If you live in a condo, check your building's rules before modifying any vent ductwork — most Toronto condo corporations control access to shared mechanical chases and exterior walls. A professional ductwork contractor familiar with GTA condo buildings can assess whether the run length, material, and termination are adequate and recommend the most practical fix. Toronto Ductwork can match you with a local ductwork professional through the Toronto Construction Network for a free estimate.