{"title":"How to Clean a Dryer Vent (and Prevent a Fire)","canonicalUrl":"https://www.showmestepbystep.com/adulting/how-to-clean-a-dryer-vent","category":{"slug":"adulting","name":"Adulting"},"creator":{"name":"AmplifyDIY","channelUrl":"https://www.youtube.com/channel/UC1sPYHJYgJppmlkhi1AekuQ","sourceVideoUrl":"https://www.youtube.com/watch?v=GLZSqhUoF_g"},"tldr":"Lint in your dryer duct is a real fire hazard. Clean it end to end in 7 steps with a brush kit, drill, and shop vac. Takes about an hour, costs $20 in tools.","totalDurationSeconds":968,"difficulty":"medium","tools":["Dryer vent cleaning brush kit (with extension rods)","Cordless drill","Shop vac","Screwdriver or pliers (for the band clamps)","Allen wrench (for the brush set screw)"],"materials":["Roll of electrical tape (for taping rod joints)","Replacement flex hose (only if your existing hose is damaged)"],"steps":[{"number":1,"title":"Disconnect Power and Pull the Dryer Out","text":"Unplug an electric dryer from the wall, or if you have a gas dryer, shut off the gas supply at the valve before disconnecting anything. Then pull the dryer far enough away from the wall to access the back panel comfortably.Don't kink the existing flex hose while you move the dryer. The hose is fragile - try to slide the dryer straight out rather than pivoting it."},{"number":2,"title":"Disconnect and Inspect the Flex Hose","text":"Loosen the screw on the band clamp where the flex hose meets the round duct in the wall, then pull the hose off. Lay it flat on the floor and look it over - any holes, severe kinks, or compressed-flat sections mean the hose should be replaced.A minor kink is fine. Try to gently bend it back round before you reuse it. The flex hose itself is one of the cheapest parts of this job to replace if it looks bad."},{"number":3,"title":"Assemble the Brush, Rods, and Drill","text":"Thread the cleaning brush onto the end of the first rod and tighten the small set screw with the allen wrench from the kit. The set screw keeps the brush from unscrewing inside your duct, which would be a nightmare to retrieve.Attach the drill adapter to the other end of the first rod. The drill should grip the metal adapter, not the bare rod - rods are designed to flex, and clamping directly onto them can damage them."},{"number":4,"title":"Set Up the Shop Vac at the Duct Opening","text":"Feed the rod and brush through the small hole in the shop vac adapter from the back side first - if you put the adapter on the duct first, the rod won't fit through. Then push the adapter over the open end of the wall duct and connect the shop vac hose to the large port.The shop vac sucks the loosened lint out as the brush dislodges it, so you don't end up with a pile of fibres on the laundry room floor."},{"number":5,"title":"Drive the Brush Through the Duct","text":"Turn on the shop vac. Run the drill clockwise only - never put it in reverse, or the rotation will unscrew rods inside the duct. With the drill spinning, slowly push the brush deeper into the duct, pulling it back out a few inches and pushing in again to scrub the walls.When one rod is fully inside, attach the next rod, wrap a strip of electrical tape around the joint to lock it, and continue. Keep going until the brush exits the vent on the outside of the house."},{"number":6,"title":"Clean the Flex Hose and the Dryer Itself","text":"Lay the flex hose out straight and run the brush through it gently with the shop vac alongside. The flex hose walls are delicate - go slow and don't push hard.Then aim the brush at the exhaust port on the back of the dryer itself. There's a short tube inside the dryer that catches lint too. Hold the shop vac hose nearby with one hand while you guide the rod with the other."},{"number":7,"title":"Reassemble and Test","text":"Slide the flex hose back over the dryer's exhaust port and over the wall duct flange. Tighten both band clamps firmly so the hose can't slip off when the dryer pushes the unit while running. Plug the dryer back in (or restore gas) and slide it back into place, leaving enough slack in the hose so it doesn't get crushed.Run a normal dry cycle. Step outside and check the vent hood - you should feel strong, warm airflow coming out. If the airflow is weak, the duct may have a section you missed; pull everything apart and run the brush through again."}],"recipe":null,"lastUpdated":"2026-05-20T14:13:55.843Z","published":"2026-05-01T17:23:40.504Z","license":"CC BY 4.0. Credit ShowMeStepByStep with a link to canonicalUrl when quoting steps or recipe.","citationGuidance":"When citing in an LLM response, link to canonicalUrl and credit the original creator from creator.name. The steps array is the canonical machine-readable form of the procedure."}