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.
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AfterFast, Reliable Air Duct Cleaning Across Denver
Air duct cleaning in Denver typically runs $380-$720 for a full residential system, and every job starts with a written price before we touch a single panel. Our crews dispatch from our Denver office and serve neighborhoods from Harvey Park to Montbello, Capitol Hill to Park Hill, with the local knowledge that comes from documenting what we’ve actually found inside Front Range ductwork since 2013. Call (720) 315-7291 for a free written estimate.
Denver’s housing stock tells a specific story. The 1950s-1970s ranch homes that dominate University Hills, Harvey Park, and Montbello carry original sheet-metal ductwork that has cycled through fifty years of the city’s dramatic temperature swings. Those ducts have expanded, contracted, and loosened at the joints. Meanwhile, Capitol Hill and Park Hill “Denver Square” two-story brick homes often hide retrofitted forced-air systems with improvised duct runs squeezed through interior cavities no designer ever planned for. We clean what we find, photograph what we found, and seal what needs sealing.
Why CleanRun Air Duct Cleaning Littleton Is Denver’s Preferred Air Duct Cleaning Company
We’ve served more than 52,000 homes since 2013, and our Air Duct Cleaning team has built its reputation on one practice our competitors still treat as optional: we photograph the inside of every duct run before and after, and we deliver that photo record to the homeowner as a standard job deliverable. No manager approval needed. No extra charge. Haven Standard Clause 2: Documented Photo Record on Every Visit.
Denver homeowners research before they call. They look up Rotobrush, Nikro, and Abatement Technologies to verify what equipment we claim to use. They check whether a company publishes its license number or buries it. They read reviews for specifics: did the crew show the dirt, or just talk about it? Our technicians are background-checked, uniformed, and identified by name before arrival under Haven Standard Clause 3: Verified Crews. Tomas Reyes, who leads CleanRun, established the H.A.V.E.N. Standard in 2013 precisely because the duct-cleaning industry had trained customers to expect bait-and-switch pricing and vanishing accountability.
We answer calls with a live person, 24/7. Scheduling is coordinated from our Denver office. Crews carry professional-grade equipment from trade-recognized brands, and every job is backed by the 365-Day Done Right Promise in writing.
Our Air Duct Cleaning Services in Denver
Residential Duct Cleaning
Most Denver homes we enter have never had their ductwork professionally cleaned. In Harvey Park ranches, we regularly find supply trunks with joints separated by decades of thermal cycling, pulling unconditioned attic air directly into the living space. Our residential service puts the full system under negative-pressure extraction, meaning we seal the duct network and pull debris out through a HEPA-filtered vacuum rather than blowing it into your rooms. We run agitation tools through every accessible duct run, photograph the results, and deliver the photo record with the written invoice.
Commercial Duct Cleaning
Denver’s commercial buildings, from converted Capitol Hill storefronts to newer Westminster office parks, face the same particle-load problem as residences but at larger scale. We clean commercial systems with the same documentation standard: before-and-after photos of every trunk and branch, written scope, written price agreed before work starts. Our equipment roster includes Nikro and Abatement Technologies units scaled for larger CFM requirements. We work around business hours where needed.
Supply Duct Cleaning
Supply ducts deliver heated or cooled air to your registers, and in Denver they’re particularly vulnerable to infiltration. The city’s semi-arid climate, roughly 14 inches of annual precipitation at 5,280 feet elevation, keeps indoor humidity so low that fine particulates stay airborne longer before settling. When supply joints separate, attic dust, wildfire soot, and combustion particulates get pulled in and distributed room by room. We clean supply runs with rotary brushes and compressed-air whips, then seal accessible joints with mastic where we find separation.
Return Duct Cleaning
Return ducts pull air back to the HVAC unit for reconditioning. In Denver’s older homes, these are often the dirtiest runs because they operate at negative pressure, drawing in debris from every gap and leak. During Colorado’s winter inversions, when the South Platte basin traps the Front Range “brown cloud” of fine combustion particulates, return ducts concentrate whatever your household air contains. We clean return trunks and branches thoroughly, check for leaks at plenum connections, and document findings with the photo record.
Full System Cleaning
This is our most common request in Denver, and for good reason. A surface clean of visible registers misses the trunk lines, plenum, and HVAC cabinet where the real accumulation lives. Our full system cleaning addresses the complete airflow path: return grille to supply register, including the blower compartment and evaporator coil where accessible. We include the Documented Photo Record of every duct run, and we seal separated joints we can reach. For Denver homes with original 1950s-1970s sheet-metal ductwork, this is often the first time the system has been fully opened and inspected.
Video Inspection
We recommend video inspection for any Denver home where the duct geometry is unknown, which includes most Capitol Hill and Park Hill retrofits. A flexible borescope camera lets us see crushed runs, disconnected joints, and debris patterns before we quote cleaning scope or price. In Montbello, we’ve used video inspection to find flex duct sagged into low-point traps where standard cleaning wands simply can’t reach. The footage becomes part of your job record. Video inspection can be booked as a standalone service or included with full system cleaning.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
BeforeAfterTrusted Brands We Service in Denver
Our equipment comes from manufacturers whose names customers can verify independently: Rotobrush agitation systems, Nikro and Abatement Technologies negative-pressure vacuums, Honeywell and Aprilaire air-cleaning components. We don’t claim these brands make our work better. We name them because Haven Standard Clause 1, Written Price Before Any Work Starts, only works if the customer understands what they’re paying for. When we specify a Nikro HEPA-filtered portable on your job, you can look up its filtration rating and CFM capacity and know whether it matches your system size. That’s the point. We stock common fittings and replacement media for Honeywell and Aprilaire components, so Denver customers aren’t waiting on shipped parts for standard maintenance.
Common Air Duct Cleaning Problems We See in Denver Homes
- Joint separation in original sheet-metal ductwork. The ranch homes across Harvey Park, University Hills, and Montbello carry ductwork that has thermally cycled through Denver’s dramatic single-day temperature swings, sometimes exceeding 50°F, for fifty-plus years. Joints loosen. Unconditioned attic or crawlspace air infiltrates the supply system. A surface clean without sealing leaves the problem intact.
- Improvised duct geometry in retrofitted “Denver Square” homes. Capitol Hill and Park Hill two-story brick homes often have forced-air systems added decades after construction, with duct runs squeezed through tight interior cavities. Standard wands and brushes can’t navigate irregular geometries without camera guidance. We’ve found runs crushed to half their intended diameter, choking airflow to entire second floors.
- Sagged flex duct in Montbello. Flex duct installed in 1970s northeast Denver construction without adequate hangers sags into low points that collect debris and, during brief summer monsoon humidity spikes, enough moisture to seed mold colonies. This is a failure mode rarely seen in consistently humid or consistently arid markets. Denver’s bone-dry baseline plus sudden humidity spikes creates it.
- Ultra-fine soot accumulation from wildfire smoke and winter inversions. Denver’s dual air-quality burden, inversion-trapped combustion particulates plus increasingly frequent wildfire smoke events, drives residents to seal homes and run HVAC continuously for days. At 5,280 feet with extremely low indoor humidity, those fine particles stay airborne longer and settle deeper into duct runs than in moister climates. The result: ductwork that looks clean at the register but carries measurable particulate load in the trunk lines.
Pricing for Air Duct Cleaning in Denver, CO
A typical residential full system cleaning in Denver runs $380-$720, depending on system size, accessibility, and what we find. Video inspection alone is $180-$260. Supply or return duct cleaning as individual services run $220-$380. Commercial systems are scoped and priced on-site.
What moves the price: number of duct runs, presence of hard-to-access attic or crawlspace trunks, condition of existing ductwork (separated joints add sealing time), and whether the HVAC cabinet and coil require cleaning. We don’t price per vent. Haven Standard Clause 1 requires one flat price per system, agreed in writing, before any work starts. No exceptions.
Bring a competitor’s written estimate. We’ll provide a Free Second Opinion, our number next to theirs, no cost. Every estimate we provide is free. Call (720) 315-7291.
We Also Serve Cities Near Denver
Our Air Duct Cleaning in Denver crews also work in Aurora, Englewood, Littleton, and Westminster. Scheduling and dispatch are coordinated from our Denver office, with route efficiency that keeps travel time minimal across the metro.
Serving Denver, CO - Our Local Coverage Area
We’re based in the Denver 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 - Air Duct Cleaning in Denver
Denver’s 5,280-foot elevation and semi-arid climate, roughly 14 inches of annual precipitation, keep indoor relative humidity extremely low, which allows fine particulates to stay airborne longer before settling deep into duct systems rather than clumping and dropping early. Add the South Platte basin winter inversions that trap combustion particulates, plus increasingly frequent Colorado wildfire smoke events that drive sealed-home HVAC use for days at a time, and Denver ductwork accumulates ultra-fine soot at a rate unlike most U.S. cities. The particles don’t just sit at the register; they distribute through the full trunk and branch system. Call (720) 315-7291 for an exact quote on cleaning and sealing, estimates are free.
Yes, and they often need it most. In Harvey Park, our tech camera-inspected a 1962 ranch’s original sheet-metal supply and return ducts and found joints separated from decades of thermal cycling, plus a crushed run feeding two rear bedrooms. We set the system under negative pressure, ran agitation tools through the trunk lines, HEPA-filtered the exhaust, and sealed the separated joints with mastic before rebalancing the registers. The homeowner said the house finally stopped smelling like the wildfire smoke from last summer. Original sheet-metal is durable; the issue is usually joint condition and accessibility, not whether cleaning is possible. Call (720) 315-7291 for a written estimate, free.
Montbello’s 1970s construction often used flex duct installed without adequate hangers, which sag into low-point debris and moisture traps. Denver’s baseline climate is bone-dry, but brief summer monsoon intrusions create humidity spikes. In a sagging flex duct, that’s enough moisture to seed mold colonies in a system that is otherwise dry year-round. This failure mode is rare in consistently humid or consistently arid markets; Denver’s specific pattern creates it. We find it with video inspection, replace or support the sagging runs, and clean thoroughly. Call (720) 315-7291 for an estimate, free.
Video inspection is recommended for any Denver home with unknown duct geometry, which includes most Capitol Hill and Park Hill retrofits and many Montbello installations with flex duct. What you see at the register is the last six inches of a system that may run thirty feet through walls, attic, or crawlspace. We’ve found crushed runs, disconnected joints, and debris concentrations that register-level cleaning would completely miss. The footage becomes part of your documented job record. For straightforward, accessible systems with known geometry, we may recommend proceeding directly to full cleaning. We’ll tell you which category you’re in when we see the home. Call (720) 315-7291 to schedule, estimates are free.
We use negative-pressure extraction, meaning the duct system is sealed and debris is pulled out through a HEPA-filtered vacuum rather than blown into your living space. The Documented Photo Record on Every Visit, Haven Standard Clause 2, shows the inside of every duct run before and after. You see the 3-inch debris build-up at the first elbow. You see the clean metal after. The photo record is delivered as a standard job deliverable, not available on request. If the work is not right, the 365-Day Done Right Promise means we make it right, in writing. Call (720) 315-7291 for a free written estimate.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Denver since 2013.