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Can I clean my own dryer vent, or should I hire a pro?

You can safely clean the lint trap, the first few feet of flex duct behind the dryer, and the outdoor vent hood yourself. Anything beyond that — long runs, roof vents, or rigid ducting through walls — should be done by a pro with a rotary brush system and a HEPA-filtered vacuum.

Safe DIY scope: clean the lint trap after every load (non-negotiable — the manufacturer handbook will say this too), pull the dryer out and vacuum behind it twice a year, and brush out the first few feet of flex duct plus the outdoor vent hood annually.

Why hire a pro for the rest: vent runs inside walls, ceilings, or up through a second story need a rotary brush system long enough to reach the full run; they also need a HEPA-filtered vacuum at the other end so the dislodged lint doesn't end up scattered across your laundry room. Aluminum flex duct is fragile and tears easily with consumer-grade brushes — our pro brush sets are sized to avoid that.

One more argument for a pro at least once a year: professional inspections catch things that homeowners miss — crushed duct sections, improper slope, kinked flex ducting behind the dryer, or bird and rodent nests in the exterior hood. Our video endoscope documents all of it with before/after footage.

If you do DIY, never use a leaf blower to 'blow out' the vent from the dryer end. It can force compacted lint into the duct wall and create a denser blockage further down.

Need a pro?

If this is beyond DIY, here's what we'd recommend:

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Related questions

Are DIY dryer vent cleaning kits effective?

DIY kits work well for short, straight vent runs under 10 feet with one or fewer elbows, and for clearing the connector behind the dryer. They're significantly less effective on long runs, multi-elbow configurations, or roof-terminating vents — where rotary power and professional-length brush rods plus HEPA vacuum capture make a real difference.

How often should I clean my dryer vent?

Most homes should have their dryer vent professionally cleaned once a year. Households with long vent runs (over 25 feet), pets, or more than four loads of laundry per week should plan for every six months. The NFPA cites 'failure to clean' as the leading factor in U.S. dryer fires.

How do I know if my dryer vent is too long?

The International Residential Code limits dryer vent runs to 35 feet of 4-inch rigid metal duct, with a 5-foot deduction for every 90° elbow and a 2.5-foot deduction for every 45° elbow. If your measured run exceeds that, the dryer is working against code and cleaning alone won't fully solve the airflow problem — you may need a booster fan or a re-route.