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.
Guardsman Dryer Vent Cleaning in Aurora: What to Know First
CleanRun provides independent Guardsman dryer vent cleaning in Aurora for homeowners who want the job quoted in writing before any work starts. Most Guardsman exhaust systems we see in Aurora homes are cleaned and documented same-day, with a flat price per system that does not change once the crew is on site. Call (720) 513-5159 for a free written estimate.
This page is for Aurora homeowners with Guardsman dryer vent products who have noticed longer dry cycles, a hot laundry room, or the burning smell that comes from lint bypassing a compromised transition hose. We work on Guardsman GDM series vent kits, the GDM-8 through GDM-12 rigid duct lines, and the flexible transition assemblies that ship with most Guardsman laundry packages sold through regional appliance distributors in Colorado. As an independent Guardsman service provider, we are not affiliated with or authorized by Guardsman Manufacturing, but we stock the fittings and know the failure patterns specific to their product line.
How Guardsman Products Fail - and How We Fix Them
- GDM-8 and GDM-10 rigid duct kits develop separation at the crimp joints after 3-5 years. The crimp-and-twist connection Guardsman uses at the elbow joints loosens with thermal cycling, especially in Aurora’s dry climate where static pressure changes seasonally. Lint collects at these gaps and creates a restriction point. We cut back to solid metal, replace with a proper draw-band coupling, and photograph the joint before closing the wall.
- GDM flexible transition hoses harden and crack near the dryer connection. The vinyl-foil laminate Guardsman shipped on pre-2019 units degrades faster in Colorado’s low humidity and high UV exposure if the laundry room has south-facing windows. We replace with an all-metal semi-rigid transition, which is what Guardsman’s own installation guidelines now specify for warranty compliance on new installs.
- GDM-12 extended-run kits show sagging in horizontal runs over 15 feet. The strap spacing in the original kit instructions allows droop in ceilings with blown insulation, common in Aurora builds from 2015-2020 near the E-470 corridor. The sag creates a lint trap at the low point. We add support strapping every 4 feet and install a cleanout tee where the run changes elevation.
- Guardsman bird guard louvers stick open or jam shut. The plastic hinge pin on the GDM-BG series seizes with lint dust in Aurora’s dusty spring conditions, or the flapper gets wedged by a wasp nest. A stuck-open guard invites birds; stuck-shut forces back-pressure that trips the thermal limit on the dryer. We clean the mechanism, lubricate with high-temp silicone if the plastic is sound, or replace with a metal-hinged guard that uses the same 4-inch collar.
- GDM wall caps with single-flapper design show backdraft in windy conditions. Aurora’s spring wind events, particularly in the open terrain east of Buckley Space Force Base, can force the lightweight Guardsman flapper open and blow lint back into the cap mesh. We document this with a smoke pencil during the inspection, then install a weighted damper cap or relocate the termination to a sheltered wall face when structurally feasible.
Our Guardsman Dryer Vent Cleaning Process

- 1
Written estimate on arrival. The technician identifies the Guardsman series from the wall cap or interior label, measures total duct length and elbows, and delivers a flat price in writing before touching a tool. Haven Standard Clause 1.
- 2
Photo documentation of the full run. We feed a borescope through every accessible section of the Guardsman duct, capturing the lint load at each elbow and any joint separation. The customer sees these images before work proceeds.
- 3
Negative-pressure extraction with rotary brushing. We seal a Nikro HEPA vacuum to the duct line and run a Rotobrush through each segment, agitating the lint without damaging the thin-wall aluminum that Guardsman uses in its GDM rigid kits.
- 4
Parts replacement with OEM or verified aftermarket. If a Guardsman elbow, cap, or transition is compromised, we show the customer the part number and offer either a Guardsman OEM replacement or a compatible aftermarket fitting that meets the same UL 2158A standard. The choice and price are noted in writing before installation.
- 5
Airflow verification and final photo set. We measure exhaust velocity at the wall cap with an anemometer, compare to the dryer manufacturer’s spec, and photograph the cleaned duct interior. The second photo set, the written scope, and the 365-Day Done Right Promise are delivered as a single job record.
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AfterWhat Guardsman Dryer Vent Cleaning Costs in Aurora
| Service | Typical Range |
|---|---|
| Standard Guardsman vent cleaning (single-story, up to 15 ft run, 1-2 elbows) | $189 - $269 |
| Extended GDM-12 run cleaning (second story, 15-25 ft, 3+ elbows, cleanout install) | $279 - $389 |
| Transition hose replacement (all-metal semi-rigid, including draw bands) | $45 - $85 |
| Wall cap or bird guard replacement (OEM Guardsman or metal-hinged equivalent) | $65 - $125 |
| Sagging run re-support with added cleanout tee | $120 - $195 |
What moves the price: total duct length, number of elbows, accessibility (crawl space vs. finished basement ceiling), and whether the Guardsman components need replacement or just cleaning. We do not quote per-vent or per-foot. One flat price per system, agreed in writing, covers the complete job. Free estimates. Call (720) 513-5159.
Why Aurora Homeowners Call CleanRun Air Duct Cleaning Aurora for Guardsman Work

We’ve cleaned Guardsman vent systems in Aurora since 2013, from the ranch homes near Aurora Hills Golf Course where the original GDM-8 kits are still in service, to the newer builds along the E-470 corridor where extended runs and stick-frame construction create their own problems. Tomas Reyes, our owner and lead technician, keeps the before-and-after photos from every job, and his standard practice is to show you the photo first, then we talk about what comes next.
The 365-Day Done Right Promise applies to every Guardsman job we touch. Our crews are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. We also service Lennox, Trane, and Carrier vent systems, which matters when a home has mixed brands across laundry and HVAC. Equipment on the truck includes Rotobrush, Nikro, and Abatement Technologies systems, plus the Guardsman-specific fittings we stock for common repairs.
FAQs
No. Routine maintenance and cleaning of a Guardsman dryer vent system by an independent service provider does not void the product warranty, provided the work does not modify the original design in a way that creates a hazard. We document our methods and use UL-listed replacement parts when components need swapping, so the warranty record stays clean. For questions about a specific Guardsman warranty claim, call us at (720) 513-5159 and we’ll review the paperwork with you.
Replacement is necessary when the borescope shows corrosion holes in the duct wall, multiple separated joints that cannot be resealed, or a flexible transition that has hardened and cracked through the foil layer. Cleaning alone is sufficient when the metal is sound and the lint load is the only restriction. We show you the camera footage and quote both options in writing before you decide. Call (720) 513-5159 for a free inspection.
We stock common Guardsman OEM caps, elbows, and bird guards, and we also carry compatible aftermarket fittings that meet the same UL 2158A standard for dryer exhaust. We show you both options with part numbers and prices in writing. Some customers prefer the OEM for warranty continuity; others choose the aftermarket metal-hinged cap because it outlasts the original plastic design in Aurora’s wind and UV exposure.
For a typical Aurora household with 2-4 residents doing 4-6 loads weekly, every 18-24 months. Homes with pets, heavy towel laundry, or long GDM-12 runs should schedule annually. The dry climate here does not reduce lint accumulation; if anything, static cling in low humidity causes more lint to adhere to the duct walls at the first elbow. We note the recommended return date on your written job record.
Every CleanRun job includes a Documented Photo Record: before images of the lint load inside your Guardsman duct, after images showing the cleaned metal surface, and an airflow reading at the wall cap with the anemometer result noted. These are delivered as part of your standard job record, not an extra charge. If a competitor’s quote does not include photo documentation, bring it to us for a free second opinion in writing.
Written by Tomas Reyes, Owner & Lead Technician, CleanRun Air Duct Cleaning Aurora at CleanRun Air Duct Cleaning Aurora, serving Aurora and nearby areas.




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