Dryer vent cleaning costs $80 to $185 on average, depending on the duct location. Professional dryer vent cleaning prices are $60 to $275 for services like Dryer Vent Wizard, Sears, COIT, and Stanley Steemer.

Most homes need dryer vent cleaning once annually to avoid fires and produce better indoor air quality. The U.S. Fire Administration advises most people to clean vent pipes every 3 months for maximum fire safety.

Clean dryer vents less often if:

• Dryer usage is 2 weekly laundry loads or less.
• The dryer is less than 10 years old.
• The length of the dryer vent is less than 10 to 15 feet.
• The dryer duct is a straight pipe or has only one bend.
• The home is free of pet hair.

Cleaning a dryer vent is worth it for the following benefits:

• Longer dryer lifespan
• Lower electric bills
• Less home fire hazards
• Faster-drying clothes
• Water-damage prevention
• Stopping carbon monoxide leaks from the dryer
• No humidity in the laundry room

Signs of a clogged dryer vent include the following symptoms:

• Laundry room temperatures rise unusually after drying clothes.
• No air comes out of the outside dryer vent when the dryer is on.
• The outside of the dryer unit is very hot after running.
• Drying clothes takes longer than usual, increasing energy bills.
• The lint trap is excessively full even after drying a small load.
• Lint is collecting around the dryer hose and its connections.
• The dryer emits a burning smell while running.
• The outside dryer vent cover won't open.
• No lint appears on the lint screen after running the dryer.

A blocked dryer vent creates these dangers:

• Clothes dryer fires lead to costly cleanup for fire and smoke damage.
• Toxic carbon monoxide can leak from gas dryers and build up indoors.
• The dryer overheats and creates electrical damages and minor electrical work costs.
• Mold grows inside blocked lines with trapped moisture.
• A pest infestation can happen when excess lint buildup pushes open the outside vent cover.

Dryer vent cleaning takes 30 to 60 minutes on average or up to 2 hours for ducts with excessive lint buildup, large obstructions inside, or hard-to-access vents.

Running a dryer without a vent violates most building codes and dryer warranties because it creates these dangers:

• Lint blockages catching on fire
• Mold growth in the dryer room
• Carbon monoxide buildup inside the home
• Dryer parts overheating

CSIA-certified dryer exhaust technicians clean out dryer vents. These contractors work for dryer vent and air duct cleaning companies, appliance-repair businesses, or full-service HVAC, plumbing, and electrical companies. Traditional plumbers don't have training in dryer vent cleaning.

Use this checklist when hiring a dryer vent cleaning company:

• Compare three or more quotes from experienced dryer vent cleaners.
• Choose cleaning companies with these credentials:
• Certified Dryer Exhaust Technician (C-DET) by the Chimney Safety Institute of America.
• Certified by the National Air Duct Cleaners Association (NADCA)
• General contractor's license
• Select licensed, insured, and bonded cleaning service providers.
• Review past ratings on HomeGuide and Google.
• Verify that estimates include materials, labor, and equipment costs.
• Don't pay in full upfront.
• Beware of the cheapest bids that signal low-quality cleaning.

When looking for a dryer vent cleaner near you, ask them the following questions:

• How long have you been cleaning dryer vents?
• Can I see a list of references?
• Will you measure the airflow at the exterior vent opening before and after cleaning?
• Is your vacuum designed specifically for duct cleaning?
• What precautions do you take to keep my home clean?
• Do you have a labor guarantee?
• Can I see proof of your liability insurance, licenses, and bond guarantees?
• What extra costs can apply?
• Are all cleanup costs included in my estimate?
• What types of discounts do you offer?
• Will you clean the lint trap, outside vent flap, and inside the dryer cabinet?
• When can you start and how long will the job take?