Dryer Vent Reconnection
Attic runs come apart more often than any other kind. If lint is showing up in the attic, start here.
Dryer Vent Service · Palm Beach County & the Treasure Coast
Roof Dryer Vent Cleaning
If your laundry room sits away from an exterior wall, your dryer probably vents up through the attic and out of a cap on the roof. Those runs are longer, have more turns, and clog faster than a wall vent — and they are the ones homeowners never see.
Why Roof Vents Are Different
Longer Run, More Turns, Slower Air
A wall vent is often six or eight feet of duct and a single elbow. A roof vent starts at the laundry room, turns upward into the attic, travels across it, and turns again to reach the cap. Thirty feet with four or five turns is ordinary. Every one of those turns is a place where the air slows down and lint drops out.
Vertical sections add their own problem. Lint that comes loose in a horizontal run tends to get carried along; lint in a vertical riser can fall back toward the dryer and build up at the bottom of the climb. That is why a roof-vented run can be clear at the cap and still badly restricted.
South Florida roofs add access constraints that matter for honesty rather than for airflow. Barrel tile is slippery and breaks under foot, and a lot of two-story homes here have pitches that are not safe to work from without equipment we would need to bring specifically. Where the cap cannot be reached safely, we clean the run from the laundry side and tell you what we could not inspect, rather than pretending we got up there.
- Typical Homes
- Two-story and interior laundry rooms
- Why It Clogs
- Length, vertical turns, slower airflow
- Access
- Only where it can be done safely
- From Inside
- Cleaned from the laundry side when the roof is off limits
Signs of a Restricted Roof Run
What a Clogged Roof Vent Looks Like From Inside
You cannot see the cap, so the symptoms are the whole diagnosis.
Drying times creeping up
Gradual rather than sudden. Long runs clog slowly, so the change is easy to put down to the machine getting old.
The laundry room feels humid
Damp air that cannot climb the duct is settling in the room. In an interior laundry with no window, it is noticeable.
Lint in the attic near the duct
A sign the run has leaked or separated somewhere between the laundry and the cap.
Staining on the ceiling near the run
Moisture condensing inside a restricted duct and finding a seam. Worth looking at promptly.
Birds or nesting at the cap
Roof caps are attractive nesting sites, and a nest is the most complete blockage we deal with.
No visible airflow at the cap
If someone can see the cap from a window or a neighbouring roof while the dryer runs, no plume at all is a clear sign.
⚠️ Please do not climb onto a tile or steep roof to check a dryer cap. Tell us what you are seeing from inside and let us assess whether the roof can be worked safely.
How We Clean a Roof-Vented Run
From the Laundry Side Up, and the Cap Down Where We Can Reach It
The method depends on what access the roof allows, and we decide that before quoting, not after.
1
Assess the run and the roof
We confirm where the duct goes, how long it is, and whether the cap can be reached safely. That assessment shapes the quote and we tell you the outcome either way.
2
Baseline the airflow
Measured at the laundry connection for roof runs, since the termination is usually out of reach. Same principle: a number to compare against.
3
Clean the accessible run
Rotary brush sections are driven up through the duct with a vacuum at the laundry end, so lint and debris come back down and out rather than being pushed toward the cap.
4
Clear the cap where access allows
When the roof can be worked safely, the cap is opened, cleared, and the flap or screen checked. When it cannot, we say so and note it on the summary.
Scope
What a Roof Vent Visit Covers
Roof work is where over-promising is easiest, so this list is deliberately specific.
- Confirming the duct route from the laundry room to the roof
- Airflow reading before and after, taken at the laundry connection
- Rotary brush and vacuum cleaning of the run from the accessible end
- Clearing the roof cap and checking the flap, where access is safe
- A written note of anything we could not reach or inspect
- Photos of what we found and removed, where conditions allow
What this visit does not cover
- No unsafe roof access. Tile, steep pitch, wet conditions, or height without safe anchorage all mean we work from inside instead.
- No roofing work. We do not reseal, reflash, or replace roofing material around a cap. That is a roofer’s job.
- No attic duct rerouting. We clean and we repair reachable faults; we do not redesign the run.
- No nest or animal removal. If there is active nesting at the cap, wildlife handling comes first and that is a separate specialist.
What changes the price
Run length and number of turns, how the laundry connection is accessed, and whether the roof can be worked. A single-story home with a reachable cap and a short attic run is the straightforward case.
If the cap turns out to need replacing, or the duct has separated in the attic, that is repair or reconnection and is quoted separately once you have seen the photos.
Related Dryer Vent Services
Related Work on Roof-Vented Systems
Serving Palm Beach Gardens, Jupiter, Royal Palm Beach and 17 more communities.
Questions
Roof Dryer Vent Cleaning FAQ
Do you have to get on the roof to clean a roof vent?
Not always. Most of the lint in a roof-vented run sits in the horizontal attic section and at the base of the vertical rise, and both are reachable with brush sections from the laundry end. Getting to the cap is better when it is safe, because it lets us check the flap and clear the hood, but it is not the only way to clean the duct.
My roof is barrel tile. Will you walk on it?
Generally no. Tile breaks under foot and the repair costs more than the vent cleaning. If the cap genuinely needs attention on a tile roof, the honest answer is that it needs someone set up for tile roof access, and we will tell you that instead of attempting it.
Why does my roof vent clog faster than my neighbour’s wall vent?
Length and turns. Their run might be eight feet with one elbow; yours could be thirty feet with four or five, including a vertical climb. Air slows at every turn, and lint settles wherever air slows. Nothing is wrong with your system — it simply needs attention more often.
Can a bird nest really block the whole thing?
Yes, and it is one of the more common complete blockages we find in South Florida. Roof caps are sheltered and warm, which makes them good nesting sites. If there is active nesting, wildlife removal has to happen first; we will not clear an occupied nest.
How often should a roof-vented dryer be cleaned?
More often than a short wall vent, because of the length and the turns. Many of the roof-vented homes we see are on something close to an annual cycle, and heavy laundry households sooner. The airflow reading at each visit is a better guide than a calendar, and we will tell you what yours looked like.