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
AfterAir Duct Cleaning in Centennial, CO
Complete HVAC cleaning in Centennial typically runs $380-$620 for a standard three-zone ranch or two-story home, with air quality and sanitizing services ranging from $180-$450 depending on whether mold treatment or UV light installation is needed. CleanRun crews coordinate dispatch from our Denver office and serve Centennial homes with Rotobrush and Nikro negative-pressure extraction systems, delivering a written price before any panel comes off and a documented photo record when the truck leaves. Call (720) 799-2292 for a free estimate.
Why Centennial Homes Are Different
Centennial’s suburban core was built out almost entirely between the late 1970s and early 2000s on flat, open High Plains terrain with minimal natural windbreaks. Neighborhoods like Willow Creek and Piney Creek now carry 30-to-45-year-old duct systems that have never been professionally cleaned, while sitting on exposed prairie where prevailing winds funnel fine clay-rich dust directly into return-air intakes.
The flex duct used in that era degrades in Colorado’s chronically low humidity, sagging at low points and creating debris traps. At roughly 5,900 feet, Centennial experiences very low relative humidity year-round plus frequent strong Chinook and upslope wind events that sweep fine prairie dust off the open land east of E-470 directly into home envelope gaps. During Front Range wildfire smoke events, homeowners who seal up and recirculate indoor air drive ultrafine particulate deep into duct systems, where low humidity causes it to bind to interior surfaces rather than remaining suspended. Technicians working eastern-facing neighborhoods near the Cherry Creek corridor consistently find heavy reddish-brown clay-dust accumulation in return plenums even in homes with 30-day filters changed on schedule.
Our Main Centennial Services
Centennial homeowners call us most often for deep duct cleaning and dryer vent maintenance, though duct repair and sealing is increasingly common in the area’s aging housing stock.
Air Duct Cleaning in Centennial
We clean every duct run in Centennial homes with negative-pressure extraction, photographing the interior of each line before and after. The clay-dust loading in this market means return plenums often require additional agitation. Every job gets a written price before work starts and a documented photo record at completion. Air Duct Cleaning in Centennial covers full-system cleaning for ranch, two-story, and finished-basement configurations.
Dryer Vent Cleaning in Centennial
Dryer vent cleaning in Centennial addresses lint accumulation that accelerates in dry, windy conditions. We run a rotary brush through the full vent line to the exterior termination, inspect for proper airflow, and document the before-and-after condition. This service is quoted in writing before arrival. Dryer Vent Cleaning in Centennial is typically scheduled alongside duct cleaning.
Duct Repair & Sealing in Centennial
Aging flex duct in Centennial’s 1980s-1990s homes sags, separates at joints, and leaks conditioned air into unfinished spaces. We locate leaks with pressure testing, seal accessible connections with mastic or metal tape, and replace degraded flex runs where necessary. All repair scope is priced in writing before work begins. Duct Repair & Sealing in Centennial restores system efficiency without full replacement.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
BeforeAfterHVAC Cleaning in Centennial
Centennial’s combination of aging equipment, chronic low humidity, and heavy particulate loading means HVAC components work harder and foul faster than in more sheltered markets. Evaporator coils in Piney Creek ranches often carry a mat of bonded dust that restricts airflow and drives up energy bills, while blowers in Willow Creek two-stories accumulate clay particulate that throws off balance and increases amp draw. CleanRun’s HVAC Cleaning service addresses each component with equipment matched to the contamination type, always with a written price delivered before work starts.
Evaporator Coil Cleaning
Signs you need it
Ice formation on the coil, weak airflow from registers, or a system that runs continuously without reaching setpoint.
What it costs in Centennial
Evaporator coil cleaning in Centennial typically ranges $180-$280.
How we do it
We access the coil through the plenum, apply foaming cleaner, rinse with low-pressure water capture, and photograph the fin condition before and after.
Blower Cleaning
Signs you need it
Unusual vibration or noise from the air handler, uneven heating or cooling across zones, or visible dust puffing from registers at startup.
What it costs in Centennial
Blower cleaning in Centennial typically ranges $150-$240.
How we do it
We remove the blower assembly, clean the wheel and housing with compressed air and contact vacuum, balance the assembly, and document amp draw before and after.
What HVAC Cleaning Costs in Centennial
| Item | Typical range in Centennial |
|---|---|
| Evaporator coil cleaning | $180-$280 |
| Blower cleaning | $150-$240 |
| Condenser cleaning | $120-$200 |
How do I know my HVAC components actually need cleaning?
We inspect the coil, blower, and condenser with a borescope camera during our initial assessment, and we show you the footage before quoting any work. If the components are clean, we say so and charge nothing for the look.
Can HVAC cleaning reduce my energy bills in Centennial?
Yes, a fouled evaporator coil or unbalanced blower can increase amp draw by 15-30%, and cleaning typically pays for itself in one or two seasons at Centennial’s utility rates. We measure amp draw before and after so you have the numbers in writing.
Air Quality & Sanitizing in Centennial
Centennial’s low humidity and high particulate environment create a specific air quality profile: dust binds to duct interiors instead of staying airborne, but the same dryness that traps particulate also suppresses active mold growth unless a moisture event occurs. Where we find mold in Centennial, it’s almost always in sagging flex-duct low points or at poorly sealed basement rim joists where upslope wind drives humid air against cold surfaces. Air Quality & Sanitizing addresses these conditions with treatments matched to what’s actually present, priced in writing before application.
Mold Treatment
Signs you need it
Musty odor at startup, visible spotting on registers or duct interior, or recent water intrusion in basement zones.
What it costs in Centennial
Mold treatment in Centennial typically ranges $280-$450 depending on affected duct length and accessibility.
How we do it
We collect a surface sample for lab identification, apply EPA-registered fungistat to affected runs with mechanical agitation, and verify clearance with post-treatment photography.
UV Light Installation
Signs you need it
Recurring microbial growth after cleaning, high occupancy with allergy-sensitive residents, or desire for continuous surface treatment at the coil.
What it costs in Centennial
UV light installation in Centennial typically ranges $320-$480 for a single-lamp system at the evaporator coil.
How we do it
We mount a Honeywell or Aprilaire UV-C lamp at the coil location, wire to the air handler’s 24V circuit, and verify irradiance with a meter at installation.
What Air Quality & Sanitizing Costs in Centennial
| Item | Typical range in Centennial |
|---|---|
| Mold treatment | $280-$450 |
| UV light installation | $320-$480 |
| Bacteria sanitizing | $180-$320 |
Is mold common in Centennial’s dry climate?
Active mold is less common than in humid markets, but when we find it, it’s typically in sagging flex-duct low points or at basement rim joists where wind-driven moisture meets cold surfaces. We sample before treating so you pay only for what’s necessary.
How long does UV light installation take?
Most single-lamp installations at the evaporator coil take 90-120 minutes, including wiring, testing, and documentation. We schedule these with or without a full duct cleaning.
Brands We Service in Centennial
CleanRun stocks filters, UV lamps, and replacement media for Honeywell, Aprilaire, and other major brands, with most parts available for next-day installation in Centennial. Our brands page lists the full equipment roster including Rotobrush and Nikro cleaning systems.
Pricing for Air Duct Cleaning in Centennial, CO
| Service | Typical range in Centennial |
|---|---|
| Standard air duct cleaning (per system) | $380-$620 |
| Dryer vent cleaning | $120-$180 |
| Evaporator coil cleaning | $180-$280 |
| Blower cleaning | $150-$240 |
| Condenser cleaning | $120-$200 |
| Mold treatment | $280-$450 |
| UV light installation | $320-$480 |
| Bacteria sanitizing | $180-$320 |
| Duct repair & sealing (per hour) | $140-$190 |
| Full duct replacement quote | Written after inspection |
Price in Centennial is driven primarily by system accessibility, the number of zones, and contamination level, not by home square footage alone. CleanRun delivers one flat price per system agreed before work starts, with no per-vent add-ons or post-arrival upsells.
Neighborhoods We Serve in Centennial
CleanRun crews work throughout Centennial’s developed areas, with scheduling coordinated from our Denver office for efficient routing across the metro.
- Willow Creek
- Piney Creek
- Cherry Creek East
- Homestead
- The Hills
Most Centennial appointments are available within 3-5 business days of call, with emergency scheduling for active system failures.
Service Area - Cities Near Centennial
CleanRun serves homeowners throughout the south metro, with regular routes to Denver, CO, Englewood, CO, Greenwood Village, CO, and Thornton, CO. Dispatch is coordinated from our Denver office; all service areas receive the same written pricing, documented photo records, and 365-Day Done Right Promise.
Serving Centennial, CO - Our Local Coverage Area
We’re based in the Centennial 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 Centennial
No permit is required for standard duct cleaning or HVAC component maintenance in Centennial. Duct modifications that alter the building’s structural envelope or involve gas appliance venting may require Arapahoe County permit review; we flag these during inspection and handle the paperwork if needed.
Standard appointments are typically available within 3-5 business days. We do not maintain artificial scheduling scarcity; call (720) 799-2292 and we will offer the next available slot that works for your calendar.
Most Centennial HOAs do not regulate interior duct maintenance. If your HOA requires contractor insurance certificates or has exterior work rules, we provide documentation on request under Haven Standard Clause 2: Transparent Operations.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Centennial Customers Say
"My allergies genuinely improved. They also told me the ducts did not need sealing, which I had been quoted for elsewhere."
- Petra K."On time, professional, and explained what the readings meant without talking down to me."
- Warren E."Thorough job on the ducts and the dryer vent. Left the house clean and the paperwork was clear."
- Rafael I.