Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
Before
After
Before
After
Before
AfterWhat’s Happening
A clogged dryer vent almost always means lint, debris, or a crushed section of duct has blocked enough airflow that your dryer can no longer push hot, moist air out of the house. Clothes take longer to dry, the cabinet runs hotter than usual, and in serious cases the blocked heat has nowhere to go – which is how dryer fires start.
The dryer itself is fine in most of these situations. The vent line behind it is the problem. Lint is light when it’s floating, but it accumulates into a dense, flammable mat on the walls of the duct over months and years. Once that mat builds up enough to restrict airflow, your dryer works harder, runs longer, and gets hotter – none of which is good for the machine, your energy bill, or the house. The fix is almost always a professional cleaning, not a new appliance.
Why It Happens
Lint Buildup in the Duct
This is the most common cause by a wide margin. Every load sends a small amount of lint past the trap and into the vent line itself. Over time – usually faster in households that do more than one load a day – that lint packs against bends and rough seams inside the duct. You’ll notice it as clothes that used to dry in 40 minutes now taking an hour or more, or a laundry room that feels warmer and more humid than it should after a cycle.
A Crushed or Kinked Duct Section
Dryers get pushed back against walls, and the flexible duct section behind them gets kinked. A sharp bend in that foil or plastic flex duct does two things: it cuts airflow and it creates a ledge where lint piles up fast. If your dryer was recently moved – for a repair, a flooring install, anything – check whether the duct behind it was bent in the process. You may be able to see the kink without pulling the dryer out completely.
A Bird Nest or Debris at the Exterior Cap
The cap on the outside of your house where the vent exhausts is an attractive nesting spot. Starlings and sparrows in particular will build inside a vent cap in a matter of days in spring. If your dryer issues appeared suddenly rather than gradually, this is worth checking first. Walk outside and look at the vent cap – if it’s covered with nesting material or the flap won’t open when the dryer runs, that’s your answer.
A Closed or Stuck Damper Flap
Most exterior vent caps have a small damper flap that opens when air pushes through and closes when the dryer is off. Lint, rust, or cold weather can lock that flap shut or leave it only partially open. Have someone run the dryer while you stand outside – you should feel a clear puff of warm air from the cap. If you feel almost nothing, and you can rule out a blockage inside the duct, the cap itself may need to be replaced.
What to Do Right Now
- Stop using the dryer until the vent is cleared. A blocked vent combined with a running dryer is one of the leading causes of house fires. If the dryer is hot to the touch on the outside of the cabinet, or if the exhaust area smells like something is burning, don’t run another cycle.
- Pull the dryer a few inches from the wall and look at the flex duct section connecting it to the wall. Note any obvious kinks or crushed sections. Photograph it – your technician will want to know the duct layout before they arrive.
- Walk outside and check the vent cap. If it’s obstructed with nesting material or debris you can see clearly, you can note it, but don’t reach into the duct from the exterior – you can compact blockages further up the line by probing without the right equipment.
- Clean the lint trap if you haven’t already and look at the slot it sits in. A lint trap that hasn’t been cleaned regularly can let debris fall into the housing and down into the duct. This tells you something about how the buildup started.
- Do not attempt to snake or shop-vac the duct yourself. A standard shop vacuum doesn’t generate the sustained negative pressure needed to extract packed lint from a long duct run, and pushing a cable through can compact the blockage or damage the duct lining. Leave the actual clearing to a technician with the right tools.
How We Fix It
When your local Kestrel Air Duct Cleaning team arrives, the first thing we do is map the vent run – how long it is, how many bends, where the exterior cap sits. Then we give you a written price before anything is touched. That’s not a formality; it’s how every Kestrel job starts, every time, under the Kingswell Guarantee.
The cleaning itself uses Rotobrush rotary brush systems to dislodge packed lint from the duct walls, combined with Nikro negative-pressure units that pull the loosened debris out rather than pushing it back into the laundry room. Abatement Technologies HEPA filtration keeps particles out of the air in your home while we work. For most residential dryer vent jobs, the cleaning portion takes roughly an hour, depending on duct length and how severely it’s blocked.
If the exterior cap is damaged or the flex duct section behind the dryer is kinked, we’ll note it and talk through the options before anything changes. All work is covered by the 365-Day Done Right Promise: if it doesn’t hold up within the guarantee period, we come back and make it right at no charge. That’s in writing on the job, not a favor we extend at our discretion.
Frequently Asked Questions
A clogged dryer vent is a genuine fire risk – not a remote one. Lint is highly flammable, and a blocked vent traps the heat that would normally exhaust outside. If your dryer is running hot, taking multiple cycles to dry a load, or smelling like something is scorching, stop using it and call (469) 972-3151. This is not a “get to it when you can” situation.
If you’re seeing multiple symptoms at once – long dry times, a hot cabinet, a burning smell, or visible lint around the cap – don’t wait. Any one of those on its own warrants a cleaning soon; all of them together means the vent is significantly restricted and the dryer is working far outside its safe operating range. Call (469) 972-3151 and let us take a look.
Your local Kestrel team will do its best to schedule you as quickly as possible – dryer vent cleaning is a job we take seriously, especially when there’s a fire-risk concern. Call us at (469) 972-3151 and a real person will pick up and find the earliest available time in your area. We don’t run voicemail queues; someone answers every call.
We don’t list a flat price here because the honest answer depends on your duct layout, length, and what we find – and we won’t guess at a number and then revise it at the door. What we do is give you a written price before a single thing is touched. Call (469) 972-3151 and your local team will walk you through what’s involved and give you a real figure, in writing, before any work starts.
Get It Fixed
If your dryer is showing any of the signs above, don’t run another load. Call (469) 972-3151 – a live person answers every call – or book online, and your local Kestrel Air Duct Cleaning team will schedule the visit, give you a written price before anything starts, and back the work with the 365-Day Done Right Promise.
Written by Dale Whitmore, Owner at Kestrel Air Duct Cleaning, serving communities nationwide under the Kingswell Guarantee since 2004.
What Our Customers Say
"Bought an older home and the previous owners had pets everywhere. After Kestrel did the ducts the stale smell was just gone. On time, quick, and they showed me the filter they pulled."
- Preston Ngata"Our dryer was taking two cycles to dry a load. They cleaned the vent and pulled out a frightening amount of lint. Dries in one cycle now and honestly I feel better about the fire risk."
- Marcus Lee"Set up an appointment for the whole house plus the dryer line. They called the morning of to confirm, showed up in the window, and showed me pictures of the gunk they pulled out. Worth it."
- Terrence Boyd