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.
Why Denver Homeowners Choose Trane Air Duct Cleaning
CleanRun Air Duct Cleaning Denver provides independent Air Duct Cleaning, repair, and sealing service for residential and light-commercial systems across the metro area. We are not affiliated with or authorized by Trane - we are an independent Trane service provider that trains specifically on Trane cabinet geometries, return plenum designs, and coil configurations. Our crews have cleaned and sealed thousands of Trane installations across the Front Range, and every job starts with a written price before work begins and ends with a documented photo record of every duct run.
Denver’s mile-high elevation forces Trane blower motors to run longer cycles than at sea level, accelerating dust accumulation inside ductwork. The Front Range’s intensifying wildfire seasons - including the December 2021 Marshall Fire that hit Louisville and Superior just 20 miles from downtown - drive residents to seal windows and run HVAC continuously during smoke events, embedding fine ash deep into duct systems. That combination means Trane systems here work harder and collect more debris than identical units in coastal cities, which is why many homeowners search for Trane repair in Denver. We account for that in how we clean, what we inspect, and what we document.
Call (720) 799-2292 for a written estimate.
Why Trust CleanRun Air Duct Cleaning Denver for Your Trane Air Duct Cleaning?
Our technicians know the difference between a Trane XR14 cased coil cabinet and an XL16i multi-position air handler without reading the nameplate twice. Tomas Reyes, who leads CleanRun, grew up in Queens and picked up his trade fundamentals at Manhattan’s Apex Technical School before doing ductwork in commercial and residential buildings across the Northeast. He and his crew have been servicing Denver homes and businesses for over a decade, including jobs in Capitol Hill and nearby Trane service in Englewood where older furnace systems and original galvanized duct runs keep the work honest. Tomas still photographs every register, plenum, and main trunk line before and after a job, so customers see exactly what was collected and where it was sitting.
We stock OEM-equivalent Trane filter cabinets, cased coil gaskets, and mastic sealants for common Denver installs, plus quality aftermarket flex duct, dampers, and blower components when they meet or exceed Trane’s spec. Our equipment roster includes Rotobrush, Nikro, Abatement Technologies, Honeywell, Aprilaire, and Guardsman - brands customers can verify independently. Every technician is background-checked and uniformed under Haven Standard Clause 3: Verified Crews. The 365-Day Done Right Promise applies to every Trane job in writing, not as a verbal courtesy.
Here is what the camera found. Here is what it costs to fix it. You decide.
Common Trane Air Duct Cleaning Problems We Fix in Denver

- Return plenum and filter-cabinet bypass on Trane cased coils. On XR and XL split systems with matching cased coils, air leaks past the filter slot and pulls attic or garage dust directly onto the coil face and blower compartment. In Denver’s dry climate, that dust includes fine prairie soil that stays suspended rather than clumping. We find this unsealed from the factory more often than homeowners expect. The camera shows a clean filter with a dirty coil - the signature of bypass.
- Fiberglass duct board deterioration in Trane trunk lines and branch runs. Denver’s roughly 40% annual relative humidity dries the facing on fiberglass duct board faster than in humid regions. The interior surface cracks and sheds particles that collect on the evaporator coil and blower wheel. Homeowners notice gray fibers loading their filter within weeks. We wrap exposed duct board and replace deteriorated sections with sheet metal or lined flex.
- Spine Fin coil fouling on Trane XR/XL outdoor units. Trane’s all-aluminum Spine Fin condenser coils trap cottonwood seed and Great Plains fines between the fins during Denver’s late spring cottonwood season. That raises head pressure and short-cycles the system. The coil needs specific cleaning technique - high-pressure wash from the correct angle - to avoid fin damage. We photograph the fouling before touching it.
- EZ Fit and cased coil cabinet gasket failures at the supply plenum transition. On ComfortLink II communicating systems like the XV20i and XC20, these leaks unload static pressure and unbalance room airflow. One zone starves while another over-conditions. We pressure-test the cabinet, seal with mastic rated for the temperature range, and verify airflow balance at each register.
- Gravity-furnace octopus trunk lines in Capitol Hill and Congress Park conversions. Original uninsulated sheet-metal trunks from early 1900s gravity systems, retrofitted for forced air during 1960s and 70s Trane conversions, create horizontal dead-end runs where debris and occasionally mouse nesting material has compacted undisturbed for 50+ years. Our techs find these almost exclusively in Denver neighborhoods that kept the original trunk rather than tearing it out. The camera shows material you cannot reach with a standard vacuum.
Before
AfterTrane Parts & Our Repair-vs-Replace Approach
We use OEM-equivalent Trane filter cabinets, cased coil gaskets, and mastic sealants when they match the cabinet exactly. For flex duct, dampers, and blower components, we source quality aftermarket parts that meet or exceed Trane’s published specifications - we will show you the spec sheet if you ask. If a Trane coil or blower is heavily fouled but the cabinet and heat exchanger are sound, we clean and seal rather than upsell replacement. On older XB and XR systems with Spine Fin coil damage, we show you the photos and let you decide. Haven Standard Clause 1: written price before any work starts, every time. Call (720) 799-2292 for a written estimate with no obligation.
Our Trane Service Process - Step by Step

- 1
Diagnosis with photo documentation. We photograph every register, plenum, and main trunk line before touching anything. On Trane systems, we specifically inspect the cased coil cabinet for filter bypass, the supply plenum gasket for leaks, and the return trunk for fiberglass deterioration. We note the model and serial, check static pressure at the blower, and deliver a written scope with price before proceeding.
- 2
Cleaning and repair. We use negative-pressure extraction - a vacuum system that pulls debris out of the ductwork rather than blowing it around - combined with Rotobrush or Nikro agitation tools sized to the duct diameter. Trane Spine Fin coils get cleaned with controlled-pressure wash, not generic foaming cleaner. Duct sealing uses mastic rated for the temperature range of that Trane system.
- 3
Testing and verification. We re-check static pressure, verify room-to-room temperature split, and confirm the ComfortLink II zoning system is reading accurate airflow if equipped. The filter-cabinet bypass gets a smoke-pencil test. We do not leave until the numbers match what Trane’s engineering expects for that model at 5,280 feet elevation.
- 4
Warranty documentation. The 365-Day Done Right Promise goes in writing. The photo record - before and after of every duct run - gets delivered as a standard job record. If something is not right, we make it right.
Trane Products We Service & Install in Denver
We work on Trane XR and XL series split systems (XR13, XR14, XL15i, XL16i, XL18i) with matching cased coils and plenums; XB and XR package units (XR13, XR14, XR16) with rooftop or pad-mounted duct connections; ComfortLink II communicating systems (XV20i, XV18, XC20) with variable-speed air handlers and modulating zoning; and S-Series and T-Series furnaces with matching cased coils and multi-position air handlers. We stock common filter cabinets, gaskets, and mastic sealants for fast turnaround on Denver’s most common Trane installs. Equipment from Rotobrush, Nikro, Abatement Technologies, Honeywell, Aprilaire, and Guardsman handles the cleaning and sealing work.
We Also Service These Brands

CleanRun Air Duct Cleaning Denver is not a single-brand shop. We service Lennox and Carrier systems with equal technical depth, and our technicians cross-train on cabinet geometries and coil configurations across manufacturers. The documented photo record, written upfront pricing, and 365-Day Done Right Promise apply regardless of brand.
FAQs - Trane Air Duct Cleaning Service in Denver
No. We are an independent Trane service provider with no manufacturer authorization or affiliation. We train on Trane systems because they are common in Denver, but we do not represent Trane and cannot process factory warranty claims. We can perform warranty-safe maintenance and cleaning that does not void your existing coverage.
No special filter is required, but we recommend checking the filter-cabinet bypass before upgrading filter density. A MERV 13 filter in an unsealed XR14 cabinet pulls more air through the gap, worsening coil fouling. We seal the cabinet first, then match filter grade to the system’s static pressure capability. Call (720) 799-2292 and we will measure it.
The return plenum or filter cabinet is leaking. On Trane cased coils, the bypass ledge is the usual culprit - air takes the path of least resistance and bypasses the filter entirely. We seal this with mastic as standard practice during any return duct cleaning. If the duct board trunk is shedding fiberglass, that continues until it is wrapped or replaced.
Yes, with controlled-pressure wash from the correct angle to avoid fin damage. Spine Fin coils are all-aluminum and more fragile than copper-tube coils. We photograph the fouling first - cottonwood seed, dust, or both - then clean with technique specific to this coil geometry. We do not recommend foaming cleaners that can leave residue between the fins.
Often yes. On XV20i and XC20 systems, a leak at the EZ Fit or cased coil cabinet gasket unloads static pressure and starves the zone farthest from the blower. We pressure-test the cabinet, seal leaks with rated mastic, and verify airflow at each register. Sometimes the duct design itself is undersized for the zone load - we will show you the photo evidence and the static pressure readings.
Yes. XR13, XR14, and XR16 package units with rooftop or pad-mounted duct connections are common in Denver’s light-commercial and multi-family stock. We clean the duct connections, inspect the return plenum for leaks, and service the blower compartment. Access varies by installation - we quote the scope and price in writing after inspection.
Whole-system Trane Air Duct Cleaning in Greenwood Village, CO and across Denver typically runs $380-$620 for a standard residential split system, depending on duct run count, accessibility, and whether the cased coil cabinet needs sealing or the Spine Fin coil needs cleaning. Package units and larger homes run higher. We deliver one flat price per system agreed before work starts - no per-vent pricing, no add-ons after the truck arrives. Call (720) 799-2292 for a written estimate; estimates are free.
Book Your Trane Service in Denver, CO

Call (720) 799-2292 to speak with a live person and schedule your Trane air duct cleaning, repair, or sealing. We will deliver a written price before any work starts, document every duct run with before-and-after photos, and back the work with our 365-Day Done Right Promise. Free second opinion on any competitor’s written estimate.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Denver, serving Denver since 2013.




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