Dryer Vent Cleaning in Older Cottonwood Heights Homes

What we find in a bench home built before the 1980s

Three things recur. The first is duct material that would not be installed today: white vinyl or thin corrugated foil, which sags between supports, collects lint in every low spot, and is itself combustible. The second is a run that was improvised when the appliance was added, threading through joists or a crawl space with more turns than anyone intended, sometimes with a section of flexible hose used as permanent duct rather than as the short transition it was sold as. The third is a termination that no longer works, either a damper flap rusted or lint-jammed open, or a screen someone fitted over the outlet with the best intentions, which catches lint until nothing gets out at all.

Add to that the seasonal fact that this bench is cold for a long stretch, so dryers run more, and the laundry is often in a basement where nobody notices heat and humidity building up around the machine.

The outside end takes that same winter. On a Cottonwood Heights lot the hood is frequently low on a wall that collects drifted snow, or sits directly under roof runoff that refreezes overnight into a collar around it, and a damper flap frozen shut backs the whole run up into the house. It is worth walking round and looking at yours in February rather than in July.

Doing it properly, and what gets corrected

We clean the full length of the duct with rotating brushes on flexible rods, working from the appliance toward the termination with vacuum containment at the machine so lint is captured rather than redistributed. Then the honest part of the visit: telling you what in the system is wrong by construction rather than merely dirty. Vinyl duct wants replacing with rigid metal. A flexible transition longer than it needs to be wants shortening. A missing or jammed damper wants a new termination hood. None of those are large jobs, and none of them get better with another cleaning.

The reason to bother is straightforward. Lint is dry, fine and highly combustible; a dryer is a heat source; and a restricted duct is how the two get introduced. The everyday benefit is more mundane and more noticeable: clothes dry in one cycle, the laundry room stops feeling like a sauna, and the machine stops cooking itself trying to push air through an obstruction.

For most households a yearly clearing is about right. If the run is long, has several turns, or serves a family doing daily loads, more often is justified.