Start with what changed
Note when the problem began, which loads are affected, whether the dryer heats normally, and whether the exterior outlet has visible airflow.
The washer can affect dryer time
If clothes leave the washer unusually wet, the dryer must remove more moisture. Check spin performance before assuming the vent is the only cause.
Request help when symptoms line up
Long cycles combined with excess heat, lint, odors, or weak exhaust make a vent evaluation more relevant. A provider can confirm the next step.
Common questions
Before you request help
Should towels take longer than light clothing?
Usually. Compare similar load types and sizes rather than different fabrics.
Will a new dryer solve slow drying?
Not when the main problem is a restricted or poorly routed vent.