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 costs $350 – $650 for a standard single-system home, and the entire job usually takes 3 – 5 hours. Most Denver homeowners call us because they’re seeing dust settle on registers within days of wiping them down, noticing uneven airflow between rooms, or running their HVAC harder than they used to. We serve every corner of the metro area, from Highland to Washington Park, with crews that know Denver’s older bungalows and newer high-efficiency systems equally well. If you’re ready for an honest price before any work starts, call (737) 727-2314.
Why Cardinal Air Duct Cleaning Is Denver’s Preferred Air Duct Cleaning Company
Denver homeowners call us because we treat duct cleaning like a trade, not a coupon game. Our techs arrive in uniform, introduce themselves by name, and hand you a written price before a single vent cover comes off. That price does not change at the door. No add-ons, no “while we’re in there” upgrades, no pressure. The Denver market is full of $99 whole-house offers that turn into $900 invoices once the van is parked in your driveway. We don’t do that, and we’ve built our reputation in this city on that refusal.
Every booking runs through The Relay Standard: a live trackable arrival window, before-and-after photo documentation of your own ducts, and a digital invoice payable from your phone. That’s how phone-first Denver homeowners expect service to work, and it’s how we deliver it. Omar Haddad leads the team, and the 365-Day Done Right Promise means if the work isn’t right within a year, we come back and correct it at no charge. No fine print.
Commercial Air Duct Cleaning in Denver
Commercial Air Duct Cleaning in Denver runs $0.18 – $0.35 per square foot for most office, retail, and medical spaces, with restaurant and industrial kitchens on the higher end due to grease loading. Denver’s dry climate means commercial systems pull in fine dust from outside air intakes along major corridors like I-25 and Colfax, and that dust compacts onto duct interiors, reducing airflow and stressing rooftop units. We schedule commercial work nights and weekends to avoid disrupting your business hours.
Maintenance Documentation for Property Managers
Denver property managers tell us the same story: tenants complain about dust, HVAC contractors blame the ducts, and nobody has photos to prove what’s actually inside. Our video inspection fixes that. Every commercial job includes camera footage from before and after, so you have documentation for tenants, ownership groups, and insurance records. No more arguing about whether the ducts were actually cleaned.
Restaurant and Kitchen Exhaust Handling
Grease-laden air in Denver restaurant ducts is a fire hazard, not just a maintenance issue. We use rotary brush agitation paired with HEPA-rated negative pressure extraction, which means loosened grease and debris is pulled into sealed containment, not blown out onto your kitchen equipment. Apriliare filtration products and Abatement Technologies containment units are standard on our commercial jobs.
Air Duct Cleaning Services in Denver
Air Duct Cleaning Services in Denver typically run $350 – $650 for a standard single-system home, with larger homes, multi-zone systems, or basements with long flex runs reaching $700 – $900. The job covers supply ducts, return ducts, the air handler housing, blower motor surfaces, and both supply and return plenums. Denver’s dry air makes source removal critical: if the debris isn’t physically pulled from the duct walls, it just re-enters your living space as soon as the blower kicks on.
Video Inspection Before Surface Cleaning
We run a camera through your main trunk lines before we scrub anything. The camera tells us whether you have fiberboard duct, flex duct, or galvanized sheet metal, and whether there’s moisture damage, pest intrusion, or a disconnected return. The inspection also determines whether you need cleaning at all. About one in five Denver homes we inspect doesn’t actually need a full cleaning yet, and we’ll tell you that directly.
Supply and Return Duct Deep Cleaning
Supply ducts blow air out; return ducts pull air back. Both need cleaning, but they fail differently. Supply duct debris often looks like a fine tan powder coating the walls. Return duct debris is heavier: pet hair, carpet fibers, and felt-like matting that restricts airflow at the return grille. We clean both runs independently, photograph both, and don’t charge separately for supply versus return.
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.
Trusted Brands We Service in Denver
Our Denver techs work with equipment from Rotobrush for rotary brush agitation, Nikro for HEPA-rated negative pressure extraction, and Abatement Technologies for containment on larger commercial jobs. When your system needs filtration, we stock and service Aprilaire media cabinets, which matters because Denver’s dry air carries dust further and finer than humid markets. We keep common filters and flex duct components in our local Denver trucks, so we can often address straightforward repairs on the same visit as your cleaning. No waiting for parts to ship from out of state.
Common Air Duct Cleaning Problems We See in Denver Homes
- Static-cling dust on duct walls. Denver’s high-altitude air is dry, which means dust particles carry a static charge and stick to duct interiors instead of settling out. This creates a felt-like coating that standard filters never catch, and it builds fastest in homes near major arterials like Federal Boulevard or Colorado Boulevard.
- Crushed flex runs behind finished basements. A lot of Denver’s older homes were built before flex duct quality standards improved, and finished basements hide collapsing runs that strangle airflow to upper floors. Camera inspection is the only reliable way to spot these without opening drywall.
- Disconnected returns in older bungalows. Homes in neighborhoods like Baker and Congress Park often have returns that were disconnected during past renovations. When the return path fails, the system pulls air from unfinished attics or crawlspaces, loading the ducts with insulation fibers and dust.
- Rapid filter loading from on/off cycling. Front Range temperature swings force Denver HVAC systems through more start/stop cycles per day than systems in steadier climates. Each cycle pulls dust further into the system, and standard one-inch filters load fast. A restricted filter forces the blower motor to work harder, which shortens its life.
Pricing for Air Duct Cleaning in Denver, CO
A standard residential air duct cleaning in Denver runs $350 – $650 for a single HVAC system, which includes all supply ducts, return ducts, air handler housing, and blower surfaces. Homes with two separate systems typically run $600 – $900. Commercial spaces run $0.18 – $0.35 per square foot depending on system access and contamination level.
What changes the price: number of systems, total duct square footage, whether you have a basement or crawlspace with accessible duct runs, and whether there’s existing damage like crushed flex or disconnected returns that needs repair. We never charge per vent. You get one flat price per system in writing before we start, and that number does not change. Call (737) 727-2314 for a free estimate.
We Also Serve Cities Near Denver
Our team covers Denver and the surrounding metro, including Boulder, Greeley, Fort Collins, and Colorado Springs. If you’re in one of those areas, the same flat-price-per-system promise and Relay Standard booking experience apply. Air Duct Cleaning throughout the Front Range is what we do, and you can learn more about our full service area Air Duct Cleaning in Denver coverage on this page.
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 About Air Duct Cleaning in Denver
Denver ducts typically need cleaning every 3 – 5 years for homes with pets, smokers, or residents with allergies, and every 5 – 7 years for a clean, low-occupancy home. The interval depends on three things: how fast your filter loads, whether you have carpet, and whether you run your system on auto year-round. Many Denver homes that call for a cleaning don’t actually need one yet. We inspect first and tell you the truth. Call (737) 727-2314 if you’re unsure if it’s time.
We charge one flat price per system, written on paper before any work begins. No per-vent pricing, no surprise multipliers. Denver homes vary wildly in vent count depending on basement size and square footage, so per-vent pricing is how less honest operators inflate a quote mid-job. You’ll never get a variable price from us.
Yes. Every booking we complete in Denver includes before-and-after photos from inside your actual ducts, not a stock image. Our camera inspection captures the supply and return runs before cleaning, and we re-shoot the same locations after. You’ll see what we saw. If we can’t reach a section with our tools, we show you that too.
Denver’s dry, high-altitude climate leaves homes with static-prone air, so dust and pet dander cling to duct walls instead of settling, making source removal more important here than in humid cities. Front Range temperature swings also cycle HVAC systems through more on/off cycles per day, which pulls dust past standard filters faster. This means Denver homes need mechanical agitation plus negative pressure to actually remove buildup, not just a vacuum waved at the registers.
We don’t offer same-day service, and we’d be suspicious of anyone who does. Duct cleaning is a scheduled job that requires camera inspection, equipment setup, containment, and careful agitation of every run. Rushed work disappoints both of us. Call (737) 727-2314 and we’ll get you on the schedule for the earliest available slot, usually within a few days.
For an honest, written price before any work starts, call (737) 727-2314. We’ll walk you through what we’ll do, what it costs, and what you’ll see in the photos when we’re done.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Denver and the Front Range.