There's a bird nest in your dryer vent
Here's what it costs, what to do if there's still something alive in there, and why the vent cover most people fit afterwards is the wrong one.
Bird nest removal from a dryer vent
$249 flat for a ground-floor wall exit. $319 for a second-floor wall exit. Roof exits are referred out. That's the whole job, not a starting figure.
Inspection first
Camera down the duct to see what's actually in there before anything is touched, and a photo of what I find.
Removal from the outside
So material comes out rather than getting driven deeper.
Full-length duct clean
A nest is never the only thing in there. It's been trapping lint behind it the whole time it's been sitting there, and clearing one without the other leaves you half done.
A new exterior hood
Damper-style, fitted and sealed, with a working flap. More on why below.
Airflow reading afterwards
Written down, plus photos of everything removed.
If I get in there and it turns out to be lint rather than a nest, you pay the standard cleaning price of $169 instead. You don't get charged nest rates for a job that wasn't one.
Across the market generally, nest removal alone runs $120 to $250, usually quoted on site after someone's looked. Most companies won't publish a figure at all.
If there's something alive in there right now
Stop using the dryer. Don't run a cycle to try to move anything — a dryer pushing hot exhaust into a blocked duct with a bird in it is the worst version of this problem.
Then work out which situation you have:
- A bird is stuck and you can hear it.In Maryland, only a licensed wildlife rehabilitator can handle a live native bird. Call one first. Once it's out, I can clear and clean the duct.
- There are chicks or eggs.Nothing should be touched. See the timeline below — you're looking at a few weeks, and there's a decision to make about what happens at the end of it.
- Birds are going in and out but you don't know what's in there.This is the common one, and it's what the camera is for. Ten minutes settles it without anyone reaching into a duct blind.
- You think something died in there.A smell that isn't burnt lint, getting worse rather than better, usually means exactly what you think it means. That's a full removal and clean, and the hood almost always needs replacing too — it's normally the broken flap that let the bird in.
Is it a nest, or just a clogged vent?
Speed is the clearest tell. Lint takes months or years to become a problem. A nest takes days.
Signs it's a nest:
- The dryer went from fine to useless in about two weeks, in spring or summer
- Chirping or scratching in the wall, usually loudest early morning
- Twigs, straw or grass visible at the vent hood
- A flap propped open, pulled sideways, or missing
- Birds landing repeatedly at the same spot on your exterior wall
One thing worth clearing up, because it comes up constantly: birds aren't attracted to your vent by the lint. Dryer lint is poor nesting material — it mats, holds water, falls apart when wet, and carries detergent and softener residue. What they want is the cavity: a warm, sheltered, predator-proof hole with a flap that no longer closes.
Can you just wait for them to leave?
Sometimes, and it's a fair question rather than a stalling tactic. Here's the real timeline.
For the two birds most often found in dryer vents — house sparrows and European starlings — it runs roughly 10 to 14 days of incubation, then 2 to 3 weeks in the nest before the young fledge. Call it four to five weeks from a full clutch to an empty vent.
The catch is what happens next. Both species raise more than one brood a season. Sparrows commonly go two to four times; starlings often twice. A vent that empties in June is a good candidate to be occupied again in July, because it's a proven site with an opening that still works.
So waiting gets you through this brood. It doesn't get you through the season. The thing that ends it is closing the opening, and that's the hood.
Nesting season around here runs roughly March through August. Outside those months you can usually deal with this immediately.
What's actually legal
The short version: native birds are protected; three common non-native ones aren't; and what matters is whether the nest is active.
The Migratory Bird Treaty Act makes it illegal to disturb an active nest — one with eggs or young — of a native species without a permit. Maryland DNR is explicit that this covers the nest and eggs, not just the bird, and that only a licensed rehabilitator may handle native birds or eggs in this state.
House sparrows, European starlings and feral rock pigeons were introduced to North America and are excluded from the Act. Those are all birds that turn up in vents.
What I won't claim: that I can tell you which species built it from a camera image. I'm not a birder, and a house finch — which is native and protected — builds in the same kind of cavity as a house sparrow. Getting that wrong isn't a small mistake.
What I do instead is check whether it's active, which is a question I can answer:
- Empty nest, no eggs, no youngIt comes out and we get on with the job.
- Anything alive in thereNothing is touched. I show you the photo and point you to a licensed Maryland wildlife rehabilitator, who can identify what it is and advise. I'll come back and do the job at the same price once it's clear.
That's a more cautious position than "wait three weeks," which is the standard advice online. It's also the one that doesn't put you on the wrong side of a federal statute over a dryer.
The vent cover distinction nobody draws
Search this problem and almost everything tells you to fit a bird-proof vent cover. That advice isn't wrong so much as unfinished, because two completely different products are sold under that name and only one of them belongs on a dryer.
A screen or cage will keep birds out and cause a different problem. Mesh in a hot exhaust stream catches lint. Within a season you've replaced a bird blockage with a lint blockage, sitting directly in the airflow. The residential code prohibits screens at a dryer duct termination for exactly this reason — IRC M1502.3.
A damper-style hood keeps birds out with no trade-off. The flap sits closed whenever the dryer isn't running, so there's no opening to get into, and nothing in the airstream to catch lint.
Birds get in through hoods where the flap is broken, painted open, missing, or too stiff to seat. That's a failed part, not an invitation — and replacing it is the actual fix.
Which is why hood replacement isn't a separate line on my invoice. Pulling a nest and screwing the old broken hood back on means you're calling someone again next spring.
Things that don't work
Deterrents
Spikes, reflective tape, owl decoys, ultrasonic devices. Birds habituate to all of them quickly, and a cavity nester that has settled on a specific hole is not going to be talked out of it by a plastic owl. Exclusion works; persuasion doesn't.
Leaf blowers
The most repeated advice online and the worst of it. It won't shift a compacted nest, it packs it tighter, and the pressure can separate a taped duct joint inside your wall. Then you're blowing nesting material into a cavity nobody can reach.
Pushing from the laundry room side
This drives everything toward the exterior elbow, which is the tightest part of the run and the hardest place to clear. Material should come out the way the air goes.
Looking for a fireproof dryer vent
There isn't one to buy, and the framing is off. Rigid metal duct is already non-combustible. What burns is what collects inside it, which is why clearing it matters more than what it's made of.
Doing it yourself
Reasonable to try if all three apply: a ground-level exit you can reach standing up, an obviously empty nest, and a willingness to replace the hood afterwards.
Not a DIY job if any of these do: an exit above ground level, any sign of activity, or no way to see what's in there.
Gloves and a mask either way — nest material carries mites and droppings.
The longer version of this question, for vents generally: cleaning a dryer vent yourself.
Where this happens around Bowie
Wall exits at ground level and just above are the ones that get used, and that's most of the older Belair and Levitt-built housing. The hoods on those are often original, and a damper that's been cycling for thirty years frequently isn't closing any more.
The newer Fairwood, Saddlebrook and Mitchellville builds put more exits at second-floor height — which birds like for the same reason homeowners find them hard to inspect.
I serve Bowie, Mitchellville, Glenn Dale, Crofton, Gambrills, Lanham, Upper Marlboro and Annapolis. Full coverage on the service areas page.
Common questions
How much does it cost to remove a bird nest from a dryer vent?
Mine is $249 flat for a ground-floor wall exit and $319 for a second floor, including the full duct clean and a new exterior hood rather than quoting those separately once I'm on site. If it turns out to be lint and not a nest, it drops to the standard $169. Across the market, nest removal alone generally runs $120 to $250, though most companies quote on site rather than publishing a figure.
Is a bird nest in a dryer vent a fire hazard?
Yes, and more than ordinary lint. A nest is dry twigs and grass sitting in a hot exhaust stream, and it blocks a duct far more completely than gradual buildup does, so the dryer runs hotter and longer trying to push through it. Lint buildup in dryer vents is the leading cause of the roughly 2,900 clothes dryer fires reported in the US each year, according to FEMA. On a gas dryer there's a second problem: a fully blocked duct can push exhaust back into the house.
How long will the birds stay if I just wait?
For house sparrows and starlings, roughly four to five weeks from a full clutch to an empty nest — about 10 to 14 days incubating, then two to three weeks before the young fledge. Both species raise multiple broods a season, so an empty vent in June can be reoccupied in July unless the opening gets closed.
What time of year is best to deal with this?
Outside nesting season, which runs roughly March through August here. If you're inside it and the nest is empty, it can still come out — the restriction is on active nests, not on the calendar.
Is it illegal to remove a bird nest from my house?
It depends on the species and whether the nest is active. Native birds are protected under the Migratory Bird Treaty Act and disturbing an active nest requires a permit. House sparrows, European starlings and feral pigeons aren't protected because they aren't native. Because telling those apart reliably isn't something I'd claim to do from a camera image, I go by whether the nest is active: empty comes out, occupied waits.
There's a bird stuck in my vent and it's alive.
Stop using the dryer and don't run it to try to move the bird. Call a licensed Maryland wildlife rehabilitator — in this state only a licensed rehabber can handle a live native bird. Once it's out I'll clear and clean the duct.
Will a bird guard stop it happening again?
A mesh guard will, and it'll create a lint problem doing it — the code prohibits screens at a dryer duct termination. A hood with a working backdraft damper excludes birds without the trade-off, because there's no opening when the dryer isn't running.
Will birds nest in my vent because of the dryer lint?
No. Lint is poor nesting material — it mats, holds water and carries detergent residue. What attracts them is a warm sheltered cavity with a flap that's stopped closing. And for the same reasons, dryer lint isn't a good thing to put out for nesting birds.
Do you clean the whole duct or just pull the nest?
The whole run. There's always compacted lint behind a nest, because the blockage has been trapping it. Removing the nest alone gets the dryer working and leaves you with a duct that's still restricted.
Get it looked at
Call and describe what you're seeing or hearing. A photo of the vent hood by text usually tells me most of what I need before I arrive.
Or email hello@bowiedryerventcleaning.com. Back to the main page.