Skip to content
Technician connecting a foil duct to an exterior vent (cover removed)

Dryer Vent Services

Dryer Vent Blockage Removal for San Francisco Homes

If a load needs two or three cycles to dry, or the laundry room turns hot and stuffy, something is probably keeping air from leaving the duct. Dryer vent blockage removal finds that obstruction and clears it so the dryer can exhaust properly again.

  • Free Estimates
  • Same-Day When Scheduling Allows
  • 24-Hour Service Sunday–Friday

Clogged Vent Clearing

On this page+

What dryer vent blockage removal involves

A dryer pushes hot, damp, lint-heavy air through a duct to the outside of the house. A blockage is anything that stops that air partway. It might be a plug of compacted lint, a bird or rodent nest at the outside hood, a flap stuck shut, or a section of flexible duct crushed behind the machine. Blockage removal targets that specific obstruction. We locate it, clear it, and then confirm that air moves freely from the dryer to the exterior opening.

Technician brushing a dryer duct indoors

This is different from routine maintenance. Regular dryer vent cleaning removes gradual lint buildup along the whole run before it causes trouble. Blockage removal is for a vent that has already stopped working well. The two often happen on the same visit, because a clog usually forms where lint has been building up for a long time.

Signs your dryer vent is blocked

Signs to watch for

  • Clothes are still damp after a full cycle, or loads need extra time
  • The dryer or the clothes feel unusually hot to the touch
  • The laundry room gets humid or warm while the dryer runs
  • A burning or scorched smell comes from the dryer or the wall behind it
  • The dryer shuts off partway through a cycle on its own
  • The flap on the outside vent barely moves, or doesn't open at all, while the dryer runs
  • Lint collects around the dryer door or on the floor behind the machine
  • Nesting material, feathers or debris are visible at the exterior vent

Some of these signs can also point to a dryer problem or a damaged duct rather than a clog. If you can't tell which it is, a dryer vent inspection with airflow testing shows whether air is leaving the vent and where it stops.

Common causes of a blocked vent

  • Compacted lint at bends, low spots and joints in the duct
  • Nests built by birds or rodents inside the outside vent hood
  • Crushed or kinked flexible duct where the dryer is pushed too close to the wall
  • Stuck damper flaps on the exterior cover, often jammed by lint
  • Long or sagging duct runs, including vents that exit through the roof, where lint settles and packs down

What the visit looks like, step by step

How we clear a blocked dryer vent

  1. Check the symptoms

    We ask what you've noticed, look at the dryer connection, and check how much air reaches the exterior vent while the dryer runs.

  2. Find the blockage

    We pull the dryer out, disconnect the transition duct, and trace the run from both ends to locate the obstruction.

  3. Clear the obstruction

    Packed lint, nesting material and debris are broken up and removed with brushes and vacuum equipment sized for dryer ducts, working from the inside, the outside, or both.

  4. Deal with damage

    If the blockage came from a crushed duct section or a broken vent cover, we show you what we found and explain the repair options before any further work is done.

  5. Reconnect and test

    We reconnect the dryer, run it, and confirm air is moving freely out of the exterior vent before we leave.

When the outside hood is what failed, such as a flap that no longer closes or a cover that let a nest in, replacing the dryer vent cover helps keep the same problem from coming back.

Safety and keeping the vent clear

Don't keep running a dryer you think is blocked

Lint is highly flammable, and a blocked vent traps heat right where lint collects. If you smell burning, or the dryer keeps shutting itself off from heat, stop using it until the vent has been checked. With a gas dryer, a blocked vent can also keep combustion gases from leaving the house, so a working carbon monoxide alarm nearby matters.

  • Clean the lint screen before or after every load.
  • Leave space behind the dryer so the duct isn't crushed or kinked.
  • Check the outside vent now and then and make sure the flap opens when the dryer runs.
  • Pay attention to drying times; a slow, steady increase is often the first sign of buildup.
  • Schedule a full cleaning of the dryer vent run periodically so lint doesn't have time to pack into a clog.

Booking dryer vent blockage removal

Get in touch and tell us what the dryer is doing and where the vent exits the house. We work on all major brands. Commercial and property-manager work is offered too, so rental owners and managers can arrange service for their units.

Free estimates.

Call or request an estimate to have your blocked dryer vent found, cleared and tested.

Dryer Vent Blockage Removal: common questions

Can I clear a blocked dryer vent myself?

Sometimes. If the clog is right at the lint screen housing or a nest sits at the outside hood, you can often reach it. Blockages deep in a long run, inside a wall, or in a roof vent are harder to reach, and pushing on them can pack the lint tighter or separate duct joints. In those cases, professional blockage removal is the safer choice.

How do I know if it's a blocked vent or a problem with the dryer?

An airflow check is the clearest way to tell. If very little air comes out of the exterior vent while the dryer runs, the vent is the likely cause. If air flows strongly and clothes still won't dry, the dryer itself may need attention. We check airflow before and after clearing the vent.

Do you take emergency calls or come out on nights and weekends?

Yes. Emergency calls are accepted, and 24-hour service runs Sunday–Friday. Same-day visits are available where the schedule allows. If you smell burning, stop using the dryer while you wait.

What happens if the duct is damaged, not just clogged?

We show you the damaged section and explain the options before doing anything more. A crushed flexible duct, a separated joint or a broken exterior cover often caused the blockage in the first place, and clearing the lint without fixing the damage usually means the clog comes back.

Why does my dryer vent keep getting blocked?

Repeat clogs usually come from the vent's setup rather than bad luck. Common causes are a long run with several bends, a duct that sags or gets crushed behind the dryer, a vent cover whose flap sticks open and lets nests in, or a lint screen that isn't cleaned regularly. Unplug the dryer first, and on a gas dryer turn off its gas valve. Finding which one applies is part of the visit.

Do you handle blocked dryer vents in rental properties?

Yes. Commercial and property-manager work is offered, so owners and managers can arrange blockage removal for tenant-occupied homes and units.

Free Estimates

Talk to us about dryer vent blockage removal

Tell us what you have and when it was last cleaned. We’ll explain what the cleaning covers before it’s scheduled.