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 HVAC Cleaning Across Littleton
HVAC cleaning in Littleton typically costs $450-$850 for a full system, with coil cleaning alone running $180-$320 depending on access. Most jobs take 4-7 hours, and we schedule within 3-5 business days. If you’re in Littleton and your registers have been blowing dust or your allergies worsen every time the heat kicks on, the ducts and coils are usually the culprit. Call us at (806) 606-6902 for a written price before any work starts.
We know Littleton homes. We know the Chinook winds that push fine granitic dust off the foothills and into return vents. We know the 1970s tract-home ductwork in Columbine and Ken Caryl that’s never been opened. Tomas Reyes and the CleanRun crew serve Littleton with equipment you can verify and documentation you can hold us to.
Why CleanRun Air Duct Cleaning Is Littleton’s Preferred HVAC Cleaning Company
We built CleanRun in 2013 on a simple position: the duct cleaning industry has a reputation problem, and the fix is documentation. Every job we perform in Littleton starts with a written price, delivered before a single panel comes off. Every job ends with a photographed record of the inside of every duct run, before and after. You see what we saw. You decide whether the work was done.
Our technicians are background-checked, uniformed, and identified by name before they arrive. That’s Haven Standard Clause 3: Verified Crews. We carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, names you can look up independently. In Littleton, we’ve worked through the specific failure modes this housing stock produces: mineral dust stratification in original galvanized trunks, crushed flex-duct branches, and post-wildfire particulate settled deep in evaporator coils.
We’re not the cheapest option in Littleton. We’re the option that puts the price and the proof in writing, backed by the 365-Day Done Right Promise. If the work isn’t right, we make it right. That’s a written guarantee on every job, not a manager’s discretion.
Our HVAC Cleaning Services in Littleton

We focus on the components that actually determine whether your system moves clean air or recirculates whatever accumulated in 40 years of foothills weather. Here’s what we service most often in Littleton.
Evaporator Coil Cleaning
In Littleton’s semi-arid climate, suspended particulates stay airborne longer and migrate into the air handler, where they collect on the evaporator coil. We remove the coil, document its condition with photos, and clean it with professional-grade coil cleaning solutions. A typical evaporator coil cleaning in Littleton runs $180-$320, depending on access and how long the buildup has been cooking on.
After a Jefferson County wildfire smoke event, we routinely find a fine gray film across the coil face. That film insulates the coil and cuts heat transfer efficiency. Cleaning restores airflow and temperature differential. We photograph it before and after so you can see the difference.

Air Handler Cleaning
The air handler is where Littleton’s wind-driven particulates first accumulate. We open the unit, vacuum the blower compartment, clean the housing, and inspect the drain pan and motor. In older Littleton homes with original air handlers from the 1980s and 1990s, we often find enough fine dust packed around the blower motor to affect RPMs.
Air handler cleaning in Littleton typically runs $120-$220 as part of a full-system clean. If we find moisture damage or biological growth, we document it and give you a written scope for remediation before any additional work proceeds.

Condenser Cleaning
The outdoor condenser unit takes a beating in Littleton. Cottonwood seed from the South Platte corridor, windblown clay dust from exposed soils, and grass clippings from every mow cycle all pack into the coil fins. We wash the condenser coil from the inside out, clear debris from the housing, and check refrigerant line insulation.
Condenser cleaning alone runs $100-$180 in Littleton. If the unit sits near open space or against the foothills exposure in Ken Caryl, expect more buildup than a comparable unit in Denver’s eastern suburbs. We’ll show you the before photo.

Heat Exchanger Cleaning
Dust on a heat exchanger isn’t just an efficiency issue. In a gas furnace, built-up debris on the exchanger surface can produce a burning smell during the first cold snap of fall. We clean the exchanger surfaces, inspect for cracks or corrosion, and document everything. In Littleton homes with original 1970s and 1980s furnaces, this is where we sometimes find problems that have nothing to do with cleaning. We’ll tell you what we see, in writing, with photos. Heat exchanger cleaning runs $150-$250. If we find a crack, that’s a safety issue and a different conversation. We won’t clean over a hazard.

What happens when you call
- 1
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.
Before
AfterTrusted Brands We Service in Littleton
We work on all major residential systems, and we carry parts and filters sized for the brands most common in Littleton homes. That includes Honeywell electronic air cleaners, Aprilaire media cabinets, and Guardsman UV systems installed during the 1990s and 2000s remodeling wave. If you have a Honeywell media cabinet that hasn’t been opened in a decade, we can replace the media and document the condition of the plenum while we’re in there. Having compatible media and filters on the truck means we don’t have to leave a Littleton job half-finished to chase a part across town.
Our HVAC Cleaning team uses HEPA-filtered negative-pressure extraction equipment that meets NADCA standards for source removal. That matters in Littleton’s older homes, where decades of accumulated particulates need to be pulled out, not just stirred up.
Common HVAC Cleaning Problems We See in Littleton Homes

- Mineral dust stratification in 1970s galvanized trunks. Chinook wind events off the Jefferson County foothills deposit fine granitic and clay particulates that layer inside original sheet-metal supply trunks. Standard agitation tools skip right over this caked-on material. We pre-inspect with camera before touching anything.
- Crushed or disconnected flex-duct branch lines. The 1970s-1990s tract-home boom in Columbine and southwest Littleton used flex duct for branch runs. Thirty to fifty years later, we find crushed lines under slab penetrations and disconnected runs at the boot. Cleaning alone doesn’t fix airflow when the duct is physically compromised.
- Post-wildfire smoke particulate in air handlers and coils. Littleton sits directly in the path of smoke events from Pike National Forest and the Front Range. That fine combustion particulate settles deep in the evaporator coil and blower assembly. It requires specialized coil cleaning and upgraded filtration to remove properly, not just a surface wipe.
- Return-side leakage pulling attic and crawlspace air. In Littleton’s older construction, return ducts frequently leak, pulling unfiltered attic air and insulation fibers into the system. We identify this during cleaning and provide a written scope for sealing work under Haven Standard Clause 1: written price before any work starts.
Pricing for HVAC Cleaning in Littleton, CO
We don’t do per-vent pricing and we don’t run $79 coupons. We give you one flat price per system, in writing, before we start. Here’s what that looks like in Littleton’s market:
| Service | Typical Littleton Price Range |
|---|---|
| Full HVAC cleaning (ducts, air handler, coils) | $450-$850 |
| Evaporator coil cleaning (standalone) | $180-$320 |
| Blower cleaning (part of full service) | Included |
| Condenser cleaning | $100-$180 |
| Air handler cleaning (standalone) | $120-$220 |
| Heat exchanger cleaning | $150-$250 |
| Duct sealing (per access, if needed) | $200-$600 |
What affects your price in Littleton: the age of your ductwork (original 1970s galvanized takes longer to clean properly), whether flex-duct branches are crushed or disconnected, and whether post-wildfire particulate requires specialized coil treatment. We give you the number before work begins, and that number doesn’t change unless we find something that requires your written approval to address. Free second opinion on any written estimate? Yes. Bring a competitor’s quote and we’ll put our number next to it in writing.
We Also Serve Cities Near Littleton

We serve homeowners throughout the southwest metro, including Englewood, Parker, Denver, and Aurora. Crews are dispatched from our Denver office, and Littleton jobs are scheduled locally with no added travel fees. If you’re in one of these nearby communities, you’ll get the same written pricing, documented photo record, and 365-Day Done Right Promise we provide in Littleton.
Serving Littleton, CO - Our Local Coverage Area
We’re based in the Littleton 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 - HVAC Cleaning in Littleton

A Littleton home typically needs HVAC cleaning every 3-4 years, versus every 5 years in Denver’s eastern suburbs. The difference is geographic: Chinook winds from the Front Range drive fine granitic and clay particulates into return vents, and at 5,350 feet with low humidity, those particles stay suspended longer and migrate deeper into the system before settling. Add wildfire smoke particulates from Jefferson County fires, and Littleton systems accumulate contamination noticeably faster. If you’re seeing visible dust on registers within weeks of cleaning, your return side likely has a leak pulling in attic or crawlspace air. That’s something we’ll identify during the job. Call (806) 606-6902 and ask for Tomas Reyes for a written assessment.
We find layered mineral dust stratification inside original galvanized supply trunks, crushed flex-duct branches, and disconnected runs that have been that way for decades. In a 1980s split-level in the Columbine area west of Santa Fe Drive, we pulled the registers and found the supply trunks coated with distinctly banded foothills dust, each layer corresponding to a different decade of Chinook events. The camera inspection showed crushed flex branches and multiple disconnects. We performed source removal with HEPA filtration, sealed the leaks, and reset airflow to NADCA standards. The homeowner had no idea the system had never been cleaned. That’s the norm in this housing stock, not the exception. If you’re in Columbine or southwest Littleton and haven’t had your ducts inspected, call us at (806) 606-6902 for a written price before any work begins.
Yes. Wildfire smoke particulate that enters your HVAC system settles into the evaporator coil, blower assembly, and duct lining, where it remains long after the outdoor air clears. Combustion particulates are fine enough to bypass standard filters, and they embed in the coil’s condensation film, creating a paste that hardens as it dries. Removing it requires specialized coil cleaning, not just surface wiping. In Littleton, where wildfire smoke events from Pike National Forest and the Front Range are a recurring seasonal reality, we recommend checking your coil and filter media after any significant smoke event. If you can smell smoke inside when no smoke is outside, the particulate is already in the system. We document what we find with photos before and after. Call (806) 606-6902 for a written quote.
Because cleaning removes the debris but doesn’t fix the leaks that let debris in. In Littleton’s 1970s-1990s tract homes, original flex-duct branches crack, separate at the boot, or get crushed under slab penetrations. Every gap pulls unfiltered air from attics, crawlspaces, and wall cavities, which re-contaminates the system within months of a cleaning. We document every gap we find, then quote sealing work as a separate line item with a written price. Cleaning without sealing in an older Littleton home often means you’re paying to clean the same dust twice. We’d rather show you the leak, quote the fix, and let you decide. That’s Haven Standard Clause 1 in practice. For a written assessment of your duct system, call (806) 606-6902.
NADCA is the National Air Duct Cleaners Association, and its standards define proper source removal: using negative-pressure extraction to pull contaminants out of the system, not just loosen them. For a Littleton HVAC cleaning job, meeting NADCA standards means the equipment creates suction at the source while agitation tools dislodge debris from duct walls, all with HEPA filtration on the exhaust. It also means the technician accesses and cleans every component: supply and return ducts, registers, plenum, air handler, blower, and coils. Not every company in Littleton works to NADCA standards, and the difference is visible in the after photos. We photograph every run before and after and deliver the record as part of the standard job file. If you want the standard in writing, call us at (806) 606-6902 and ask for a written scope.
If your Littleton home’s HVAC system hasn’t been cleaned in years, or you’ve noticed dust accumulating faster than it should, call (806) 606-6902. Tomas Reyes and the CleanRun team serve all of Littleton, from Columbine to Ken Caryl to downtown. Every quote is written, every job is photographed, and every promise is in writing.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning, serving Littleton since 2013.




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