Fast, Reliable Dryer Vent Cleaning Across Boulder
If your dryer is taking two cycles to finish a load, the problem is usually lint in the duct, not the machine. We clean dryer vents throughout Boulder – the Victorians and bungalows near Mapleton Hill and Whittier, the mid-century ranches and split-levels out toward 80305, and everything the university crowds into between. Old housing stock is the reason we get called here more often than in newer suburbs: ducts get spliced, bent and buried behind walls, and the lint packs in where nobody can see it. Call (855) 360-7080. We answer 24/7, with fast dispatch from 7am to 7pm.
Why Boulder Homeowners Call Chimney Sweep Longmont for Dryer Vent Cleaning
Our dryer vent cleaning team works all over Boulder, and the calls tend to sound alike. A load starts taking two cycles. The exterior hood flap barely lifts. Sometimes there’s a faint burning smell in the laundry room after a long dry.
We treat the duct run as the whole problem, not just the lint trap. That means tracing the run from the dryer to the outside cap, finding the bends and splices a remodel left behind, and clearing the line so air actually moves. You see what we pulled out, and you get a straight answer about what needs replacing and what can wait.
Boulder jobs get a flat price agreed before we book, and the estimate is free. We know this city’s older housing, and we know how often a “simple cleaning” turns into a duct repair once the wall is opened. We tell you before we start, not after.
Our Dryer Vent Cleaning Services in Boulder
The work breaks into a few pieces. Here’s what each one involves in Boulder homes.
Full Vent System Cleaning
This is the whole run, dryer to exterior hood. We brush and air-sweep the line, clear the bends and elbows, and check airflow at the cap before we leave. In a Boulder house with a long or bent run, the middle of the duct is usually where the lint has settled.

Lint Removal
Lint is the fuel in a dryer fire, and it builds up anywhere air slows down: at elbows, at crushed flex, at the back of the hood. We pull it out by the handful and show you what came loose. If the buildup points to a duct problem, we say so.

Lint Screen & Trap Cleaning
The screen catches the big stuff, but the trap housing and the short duct behind it collect the fine lint that slips past. We clean that section too. A homeowner who empties the screen every load still gets a clogged trap over a couple of years.

Rooftop Vent Cleaning
Some Boulder homes vent the dryer up through the roof, which puts the cap where birds and pine debris can reach it. We clear the cap and the vertical run from the top down, then verify the flap opens freely. A rooftop vent that won’t lift is a vent that isn’t exhausting.
Common Dryer Vent Cleaning Problems We See in Boulder Homes
Boulder’s housing stock has been remodeled in layers. That history shows up in the ductwork.
- Crushed foil flex behind a basement wall. When a laundry room is carved out of a basement or closet decades after the house went up, the installer often ran flexible duct through whatever opening was handy. It sags, collapses and chokes the line to a trickle.
- Separated splice joints. Duct sections joined with tape or screws come apart at the seam, especially after a laundry room is moved or added later in the home’s life. Lint then dumps into the wall cavity instead of outside.
- Long, multi-elbow runs packed with debris. A duct that turns four or five times before reaching the exterior cap collects lint at every elbow. Add ponderosa needles and outdoor debris at the wall or rooftop hood, and the flap never lifts.
- Lint matted at the trap housing. The fine lint that gets past the screen builds up in the trap and the first few feet of duct, so even a freshly emptied screen doesn’t help.
In a typical Boulder call, a homeowner reports that a load now takes two cycles and the outside hood barely moves. On an older house the run often traces back through a later-added laundry room, where the duct is a long, multi-elbow path of old foil or vinyl flex that has sagged, crushed or pulled apart behind the wall. A qualified local pro will map the run, free the line of lint and debris, replace failed flex with smooth rigid duct, and verify airflow at the exterior cap before calling it done.
Pricing for Dryer Vent Cleaning in Boulder, CO
Every job is priced per job from a written estimate, agreed before we book, and the estimate is free. A straightforward vent cleaning in Boulder typically runs $95 to $175 depending on the run length and how accessible the duct is. A long or bent run with heavy lint and debris, or a rooftop cap that needs clearing, usually falls between $175 and $295. Replacing crushed or separated flex with smooth rigid duct is quoted separately once we see the actual run, so you’re never guessing. The written estimate sets the final price – no surprises after the fact.
We Also Serve Cities Near Boulder
We work throughout Boulder and the surrounding communities, including Longmont, Arvada, Fairmount and Westminster. Same city-level expertise, whether you’re in a Victorian near downtown or a ranch out toward the edge of town. Call and we’ll confirm your address is covered.
Serving Boulder, CO – Our Local Coverage Area
We serve Boulder and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs – Dryer Vent Cleaning in Boulder
Two cycles usually means the duct is restricted, not the dryer. In older Boulder houses that restriction is most often crushed flex, a separated splice behind a wall, or a long bent run packed with lint, so the machine recirculates humid air instead of pushing it outside. Call (855) 360-7080 and we’ll trace the run and clear it – estimates are free.
The clearest sign is weak or no airflow at the exterior hood flap while the dryer runs, along with long dry times and a hot laundry room. A crush or disconnect behind the wall is common in Boulder homes where a laundry room was added later. We map the run and confirm the condition before quoting a fix, and you see the evidence – call (855) 360-7080 for a free estimate.
Yes, a rooftop vent can be cleaned from the roof, and in Boulder it often needs to be. The vertical run and the cap both collect lint, and pine debris can block the flap so it never opens. We clear it top-down and verify airflow – call (855) 360-7080 to book.
Yes, old foil and vinyl flex duct is a known problem because it sags, crushes easily and can catch lint in its ridges. In a Boulder house with a long run, it’s often the weakest point. Replacing it with smooth rigid duct improves airflow and is safer. We’ll tell you if yours needs it – call for a free estimate.
Once a year is a reasonable rule for a long or bent run, and more often if you dry heavy loads regularly or have pets. Boulder homes with multi-elbow runs and older flex tend to build up lint faster. If dry times start creeping up, that’s your cue – call (855) 360-7080.
Ready to clear that line? Call (855) 360-7080 for a free estimate on dryer vent cleaning in Boulder. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday.
Written by the team at Chimney Sweep Longmont.