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.
Fast, Reliable Dryer Vent Cleaning Across Boulder
Dryer vent cleaning in Boulder typically runs $139 – $249 for a standard single-family home, and most jobs take 60 – 90 minutes from setup to final photo. If you live in Mapleton Hill, Whittier, Martin Acres, or anywhere else in the city, our techs arrive with a written price in hand before a single tool comes off the truck. That price does not change at the door. Call (737) 727-2314 and a live person answers, 24/7, no voicemail loop.
Boulder’s housing stock makes dryer vent work trickier than people expect. Many pre-1950 bungalows route vents through unheated crawlspaces and attics to reach an exterior wall, and those long, cold runs trap lint faster than the straight-through laundry-room vents in newer neighborhoods. We know those houses. We clean them every week.
Why Cardinal Air Duct Cleaning Is Boulder’s Preferred Dryer Vent Cleaning Company
We’re the Dryer Vent Cleaning specialists in the Relay Home Co. family, founded 2005 and held to The Relay Visibility Guarantee. That means every Boulder booking comes with a live trackable arrival window, before-and-after photo proof of your own duct run, and a digital invoice you can pay from your phone. No estimates that swell once the tech is inside. No questions about what actually got done.
Our techs are background-checked and arrive in uniform. You’ll know the technician’s name before they knock. Omar Haddad leads our team, and the standard he sets applies to every job in Boulder: written price first, written guarantee on every repair, and a free second visit if anything fails within 365 days.
We run professional-grade equipment, not truck-mounted shop-vac shortcuts: Rotobrush rotary brush systems for agitation, Nikro HEPA vacuums for negative-pressure extraction (that means loosened debris goes straight into the vacuum, not back into your living room), and Abatement Technologies containment units when a job calls for it. Boulder homeowners who’ve had us out once tend to call us for every vent in the house after that, and many also schedule our Boulder HVAC Cleaning service.
Dryer Vent Installation in Boulder
Dryer Vent Installation in Boulder usually runs $180 – $390 depending on the run length and termination point, and the need for it shows up in two ways: either the existing vent is beyond repair (crushed, rusted, or full of holes), or the current setup was never right to begin with. Flat roof sections, deck terminations, and crawlspace routing all show up regularly in this city. We quote one flat price per system before work starts, and that price covers the full job: removal of the old duct, installation of new rigid or semi-rigid duct, sealing at both ends, and a final airflow test.
Relocation and Rerouting
When a Boulder homeowner’s dryer sits in the center of the house and the vent currently runs 20-plus feet through a cold attic, we often recommend rerouting to a shorter exterior wall. That’s not an upsell. Long runs through unconditioned space are why lint condenses, packs, and blocks airflow in the first place. A proper reroute can cut drying time and future cleaning frequency.
Bird Guard and Termination Upgrades
Boulder’s mature tree canopy means dryer vents become nesting spots for starlings and sparrows. Installing a bird guard at the termination point is a small job, typically $60 – $110 as part of an installation or repair visit. We also replace damaged vent caps, which in Boulder means dealing with freeze-thaw cycles that crack plastic caps within a few seasons.
Dryer Vent Repair in Boulder
Dryer Vent Repair in Boulder typically runs $120 – $280 for most issues, and the repair most Boulder homeowners don’t know they need is a crushed section of flexible foil behind the dryer or in the crawlspace. When a vent gets pinched against a floor joist or a framing member, airflow drops fast. Your clothes take longer to dry, the dryer runs hotter than it should, and lint that should exit the house stays packed inside the duct. We diagnose with a camera inspection first, then quote the fix. One price, agreed before we start, with a written guarantee on every repair.
Foam and Foil Duct Replacement
The flexible foil ducts common in Boulder homes built before 2000 are about as durable as a soda can. When we find tears, pinches, or internal separation, the right fix is replacement with rigid or UL 2158A-listed semi-rigid duct. This is also the time to bring the run up to current code: no screws penetrating the duct, no overly long runs, and proper termination to the exterior, not into a soffit or crawlspace vent.
Termination Point Repairs
Boulder’s older homes often vent through wooden soffits or out under decks, and those terminations rot, clog, or get blocked by snow and ice in winter. We repair or relocate terminations so they actually exhaust outside the building envelope. Every repair is photographed before and after and emailed to you the same afternoon.
Trusted Brands We Service in Boulder
We clean, repair, and replace dryer vents across whatever equipment Boulder homes already have. Our techs work with Nikro HEPA extraction systems, Honeywell controls and filtration, and Aprilaire air quality products, and we stay current on Abatement Technologies containment methods for tighter access jobs. When a Boulder customer needs a specific termination cap, bird guard, or duct section, we carry common sizes on the truck. No second trip, no waiting on a distributor. If the part isn’t on the shelf, we tell you before you book, not after we arrive.
Common Dryer Vent Cleaning Problems We See in Boulder Homes
- Long, cold duct runs through attics and crawlspaces. Boulder’s Mapleton Hill and Whittier bungalows often have 15-to-25-foot runs to reach an exterior wall. Lint condenses inside those cold ducts and builds up much faster than in a short, straight first-floor laundry vent. Cleaning frequency matters more here than in newer suburban builds.
- Crushed flexible foil behind the dryer. We see this on at least one in four Boulder jobs. The foil gets pinched when the dryer gets pushed back, and airflow drops by half or more before the homeowner even realizes something is wrong.
- Bird and rodent intrusion at the exterior termination. Tree-lined streets, mature landscaping, and older homes with flimsy vent caps make Boulder an easy target for nesting. A bird guard is a cheap fix that prevents a complete blockage.
- Verts terminating under decks or through soffits. Many pre-1970 Boulder homes push the dryer exhaust into a cavity rather than directly outside. That traps hot, lint-filled air against wood framing, which is a fire risk and a code failure. We relocate these terminations properly.
Pricing for Dryer Vent Cleaning in Boulder, CO
A standard dryer vent cleaning in Boulder runs $139 – $249. That covers the full job: setup, brush agitation, HEPA vacuum extraction, camera inspection, airflow test, and before-and-after photos of your own duct run. What moves the price within that range is access and run length. A first-floor laundry room with a straight 5-foot vent is the low end. A basement dryer with a 20-foot run through a crawlspace and a roofline termination is the high end. You’ll know which one you have before we start, because the price is written down and handed to you first. No per-vent pricing. No add-ons after we ring the bell. Estimates are free, and a live person answers when you call (737) 727-2314.
We Also Serve Cities Near Boulder
Our techs cover Boulder and the surrounding Front Range: Denver, Greeley, Fort Collins, and Colorado Springs. Dispatch and scheduling are coordinated from the brand’s Denver office, and crews serve Boulder locally. For full details on Dryer Vent Cleaning in Boulder, call us and we’ll walk you through what to expect.
Serving Boulder, CO - Our Local Coverage Area
We’re based in the Boulder area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Dryer Vent Cleaning in Boulder
It’s common in Boulder’s older homes, especially in Whittier and Mapleton Hill, where basements and crawlspaces were built before laundry rooms on the main floor became standard. A vertical run to the roofline does change the cleaning: we use rotary brush agitation and pull suction from the top down, then camera-inspect the full run after cleaning. Vertical runs collect lint at bends and at the bottom few feet, so we spend more time on those sections than on a horizontal first-floor vent. The flat price for the system does not change because of the vertical run.
It makes the lint drier, which makes it more flammable. Boulder’s altitude and low humidity cause lint to bake into a brittle, airy layer inside the duct rather than staying slightly damp like in a coastal city. That dry lint ignites more easily, and because many Boulder homes have long attic or crawlspace runs, there’s more of it sitting in the duct at any given time. Cleaning frequency should not drop just because the air is dry here. If anything, older Boulder homes with long runs need attention annually.
One flat price per system means the quote you get matches the final invoice, and it covers the full dryer vent job from start to finish: the camera inspection, the brushing, the HEPA extraction, the airflow test, and the before-and-after photos of your own duct run. We do not price by the vent or by the linear foot. If the job turns out to be harder than expected because your vent runs through a tight Boulder crawlspace, you already knew the price before we started. Call (737) 727-2314 and we’ll quote your system over the phone.
We do not promise same-day service, and you should be wary of any company that does for scheduled duct work. What we do promise is a live person on the phone, 24/7, and a live trackable arrival window once you book. Dryer vent cleaning is a scheduled job, not a sprint. When you need it done, we’ll give you a real window you can follow on your phone, and the tech will have the written price ready before any work begins.
Sometimes we can clean it, sometimes it needs replacement. Foil ducts are fragile, and once they’re crushed or torn, brushing will make them worse. During the camera inspection, we’ll show you what the inside of your duct actually looks like. If the foil is intact and just needs lint removal, we clean it. If it’s pinched, separated, or sagging with internal ridges catching lint, replacement with rigid or UL 2158A-listed semi-rigid duct is the honest answer, and we’ll quote that flat price before doing anything. No upsell, just what the camera shows.
Need your dryer vent cleaned in Boulder? Call (737) 727-2314 for a free estimate. A live person answers, and the price is written before we start. You’ll get photos of your own ducts when we’re done.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Boulder with flat-price dryer vent cleaning, camera inspection, and before-and-after proof on every job.




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