Dryer Vent Cleaning Cost

Lint builds up in the duct that runs from the dryer to the outside, slowing drying and creating a fire risk. HomeGuide puts a standard cleaning at $80 to $185, with a national average of $130. Angi's average is $145, with a range of $75 to $340.

Cost by vent location

HomeGuide and Angi list the same ranges. Roof vents cost more because of access and time. Longer vents and vents with several 90-degree turns also take longer to clean (Angi).

Add-ons and repairs

If you are already having the air ducts cleaned, Angi says adding the dryer vent costs about $100. See air duct cleaning cost.

How often to clean

HomeGuide recommends once a year for most homes, and cites U.S. Fire Administration advice to clean every 3 months for maximum fire safety. Angi calls once a year a starting point and suggests two or more cleanings a year for households that dry often or have long vents. Less frequent cleaning may be fine for low laundry use, newer dryers and short, straight vents (HomeGuide).

Signs the vent needs cleaning

• Clothes take more than one cycle to dry.
• The dryer or laundry room gets unusually hot.
• A burning smell when the dryer runs.
• Little or no airflow at the outside vent flap.
• Lint collecting around the outside vent opening.

DIY

HomeGuide lists DIY brush kits at $15 to $50. Angi says DIY could save close to $150.

Why dryer vents need cleaning

Lint that escapes the dryer's lint screen builds up inside the vent duct over time. A clogged vent makes the dryer run longer and hotter, wastes energy and is a fire risk. Long vent runs, vents with many bends and vents that exit through the roof clog faster.

Signs your vent needs cleaning

• Clothes take longer to dry.
• The dryer or laundry room feels unusually hot.
• A burning smell when the dryer runs.
• The exterior vent flap does not open when the dryer is on.
• Lint around the outside vent opening.

What a cleaning includes

A technician disconnects the dryer, runs rotary brushes and a vacuum or air whip through the vent from inside and outside, cleans the transition duct behind the dryer, checks the exterior vent cap, and reconnects everything. Some also measure airflow before and after.

What affects the price

• Vent length and number of turns.
• Roof vents, which require roof access.
• Bird nests or heavy blockages.
• Replacing crushed foil transition ducts with semi-rigid or rigid duct.

Questions to ask

1. Will you clean the full length to the exterior?
2. Do you recommend replacing the transition duct?
3. How often should I schedule cleaning?

In Texas

Many Texas homes route dryer vents through the attic to a roof exit, which tends to collect lint faster than a short wall vent. Birds also nest in roof and wall vents, so checking the exterior cap is part of a thorough cleaning.

Why lint buildup is a fire risk

Every load of laundry sends lint into the dryer vent. The lint screen catches most of it, but some always passes through and collects in the vent duct. Lint is highly flammable, and a clogged vent traps heat inside the dryer. The US Fire Administration reports that failure to clean is the leading factor in home dryer fires. A clean vent also lets the dryer work efficiently, so clothes dry faster and the dryer uses less energy.

How a vent cleaning works

A technician disconnects the dryer from the vent, inspects the transition duct behind the dryer and runs a rotary brush through the vent from inside, outside or both. A powerful vacuum or blower removes the loosened lint. The exterior vent hood is checked to make sure the flap opens freely and is not blocked by lint, nests or debris. The dryer is reconnected, and the technician may measure airflow to confirm it improved.

Some technicians also clean the inside of the dryer cabinet and the lint trap housing, where lint collects over time.

The transition duct

The short duct behind the dryer is a common problem area. Plastic and thin foil ducts are not recommended because they can crush, sag and collect lint, and they burn more easily. Rigid or semi-rigid metal ducts are safer. If your dryer uses plastic or foil, replacing it is an inexpensive improvement.

Vent length and routing

Long vent runs and many bends collect more lint and reduce airflow. Building codes and dryer manufacturers limit the total length of a vent, with each bend counting against that length. Vents that run up through the roof or a long way through the house need cleaning more often. If your vent is too long, a contractor may suggest rerouting it or adding a booster fan approved for dryers.

More on signs the vent needs cleaning

• Clothes take longer than one cycle to dry.
• The dryer or the laundry room feels very hot.
• A burning smell when the dryer runs.
• Little or no airflow at the outside vent hood.
• Lint around the exterior vent opening.

How often

For most households, once a year is a common recommendation. Large families, pet owners and homes with long vent runs may need cleaning more often.

Daily habits that help

Clean the lint screen before every load and wash it occasionally if fabric softener leaves a film. Avoid running the dryer when nobody is home, and keep boxes and laundry away from the back of the machine.

Bird and rodent nests

Birds and rodents sometimes nest in outside vent hoods. A guard designed for dryer vents helps.

Sources

1. HomeGuide: Dryer Vent Cleaning Cost (Apr 29, 2024)
2. Angi: How Much Does Dryer Vent Cleaning Cost? (updated Jul 8, 2026)