Dryer vent cleaning

Why is dryer lint a fire risk?

Because lint is fuel, and a dryer is a heater. Every load sheds fibers. The screen catches a lot of them, but the finest lint goes straight past it, into the housing under the screen and then down the hose and into the vent. It builds up where the air slows: at bends, at the joints, and at an outside flap that doesn’t open all the way.

As the vent narrows, the dryer runs hotter and longer to push air through it. So now there’s more heat, and a growing pile of dry fiber sitting right in its path. That’s the whole problem, and it’s why a clogged dryer vent is worth taking seriously. Cleaning the vent out is one of the simplest ways to cut the fire risk in a laundry room.

We’re not going to quote you a scary number here. The point stands without one.

What we clean

The full run, from the machine to the outside. We pull the dryer out and disconnect the connector hose, the flexible piece between the dryer and the wall. That hose usually holds more lint than people expect. Then the vent itself gets cleaned with rotary brushes and vacuum, working from inside and from the exterior hood where we can reach it. The flap on the outside hood gets cleared so it swings freely. The lint trap housing, the slot the screen sits in, gets vacuumed out, because a lot of lint lives below the screen.

Then the part that’s on our flyer for a reason: every visit includes a full back-of-machine and floor clean-up. The back panel of the dryer gets wiped down, and the floor where it stood gets vacuumed and cleaned. In our experience that floor has socks, dryer sheets and a gray blanket of lint on it. The dryer goes back, reconnected, and we run it to feel the air at the outside vent.

Signs the vent is blocked

Long cycles are the big one. If towels need two runs to dry, the dryer probably isn’t the problem; the air has nowhere to go. After that, a dryer that’s hot to the touch on top, a laundry room that gets warm and humid while it runs, and a burnt smell when a load is going. Outside, watch the vent flap while the dryer runs. It should open and push air. A flap that barely moves, or lint collecting around the hood, tells you the run is loaded. None of these needs an expert to spot, which is the good news.

Stacked units in condos and co-ops

Apartment laundry is a different job. A stacked washer-dryer in a closet has very little space behind it, and the vent often runs a long way through the building before it reaches the outside, sometimes to a shared exhaust. We can clean the hose, the connection and the section of vent we can reach from the unit. What sits deeper in a building’s shared system is the building’s to maintain, and we’ll tell you where our reach ended.

We do a lot of this in stacked laundry closets in city co-ops and in tower condos along the New Jersey waterfront, where the front desk usually wants the visit on the calendar in advance.

What comes out of a loaded run

Lint doesn’t spread itself evenly. It packs at the bends, at the joints where two sections meet, and right behind an exterior flap that has stopped swinging all the way open. On a long run with several turns it can build into a felt sleeve that leaves a passage the width of a finger. A busy household loads a vent faster, and so do pets that shed and a stacked unit squeezed into a closet.

There’s no single number that fits every laundry room, so we don’t print one. We look at the run, show you what came out of it, and set the schedule with you from there. The exterior flap is worth a glance while the dryer is running either way.

The same thinking applies to the other ducts in the house. Grease above a range builds up in the hood blower and the first run of duct, and a wood fireplace needs a sweep of the firebox and flue for the same reason a dryer vent does: a narrowing passage and a heat source. If laundry day has started taking twice as long, that’s usually the vent, and it’s a morning’s work to fix.