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 Denver: What to Know First
CleanRun provides independent Guardsman dryer vent cleaning in Denver, with written prices delivered before any work starts and a documented photo record of every vent run included as standard. Most Guardsman dryer vent jobs we handle in Denver are completed in a single scheduled visit, with the full scope and price agreed in writing under Haven Standard Clause 1 before a tool comes out of the van.
This page is for Guardsman appliance owners in Denver, Cherry Creek, Stapleton, and surrounding neighborhoods who need vent inspection, lint removal, rerouting, or component replacement - and who want to see what was actually inside their ductwork before paying. Call (720) 799-2292 for a free estimate.
How Guardsman Products Fail - and How We Fix Them
- Guardsman GDV Series: thermal fuse nuisance tripping. The GDV line routes exhaust through a compact elbow assembly that collects lint at the first bend, especially in Denver’s dry climate where static causes fine particles to cling. We remove the elbow, photograph the buildup, and replace with a smooth-radius sweep fitting where clearance allows - documented before and after, with the photo record delivered to you.
- Guardsman ProVent models: sagging flex duct behind the unit. ProVent systems often ship with 4-inch semi-rigid transition duct that compresses or sags when the dryer is pushed back, creating a low point where lint settles. Our camera shows the restriction, we replace with solid aluminum pipe where code permits, and we photograph the new run from the appliance connection to the wall thimble.
- Guardsman external vent caps: broken damper flappers. The plastic damper on Guardsman cap assemblies becomes brittle after seasons of Denver UV exposure and freeze-thaw cycling. A stuck-open flapper lets in cold air and pest entry; stuck-closed, it trips the high-limit. We stock metal replacement caps from Guardsman-compatible suppliers and document the old cap’s condition in the photo record.
- Guardsman GDV long-vent configurations: inadequate airflow at 25+ feet. Guardsman dryers rated for extended vent runs lose effective CFM when lint accumulates in the mid-run, a problem amplified by Denver’s mile-high air density. We measure static pressure at the exterior cap, locate the restriction with a borescope, and perform negative-pressure extraction (suction cleaning using a sealed vacuum connection at the vent termination) rather than compressed air that can compact the blockage deeper.
- Guardsman moisture sensor ducts: false “dry” readings. Some Guardsman units with integrated moisture sensing rely on a clean sensor port in the lint filter housing; when the port is coated with dryer-sheet residue, the control board terminates early and leaves damp loads. We clean the sensor port with a non-residue solvent, verify resistance readings against the service manual range, and note the finding in the written job record.
Our Guardsman Dryer Vent Cleaning Process

- 1
Written scope and price. We inspect the vent path, identify the Guardsman model, and deliver a written price before work begins - Haven Standard Clause 1, no exceptions.
- 2
Documented pre-cleaning inspection. Our technician photographs the vent cap, transition duct, and interior duct runs with a borescope, then shows you what the camera found. Here is what the camera found. Here is what it costs to fix it. You decide.
- 3
Parts decision. We use OEM Guardsman components where the warranty is active or where the part geometry is proprietary; for out-of-warranty units, we source quality aftermarket equivalents and note the choice in writing.
- 4
Cleaning and repair. We perform negative-pressure extraction on the full vent run, replace damaged components, and verify all connections with a metal screw and foil tape - no zip ties, no duct tape.
- 5
Airflow verification and photo record. We measure exhaust velocity at the cap, compare to Guardsman’s published CFM specification for the model, and deliver the before-and-after photo record with the written invoice.
- 6
365-Day Done Right Promise activation. The written guarantee goes into effect when we leave, backed by the job documentation, not subject to manager approval.
Before
AfterWhat Guardsman Dryer Vent Cleaning Costs in Denver
| Service | Typical Range | What Affects Price |
|---|---|---|
| Standard Guardsman vent cleaning (single-story, direct vent) | $189 - $279 | Linear feet of duct, accessibility of cap, amount of lint accumulation |
| Guardsman vent cleaning with rerouting or elbow replacement | $340 - $520 | Wall/floor penetration work, material type (rigid vs. semi-rigid), permit if required |
| Guardsman external cap replacement (bird guard or damper) | $95 - $165 | Cap type, roof vs. wall location, flashing repair |
| Long-vent configuration cleaning (25+ feet, booster fan service) | $420 - $680 | Fan inspection, static pressure testing, multiple access points |
Every price is written and agreed before work starts. No per-vent add-ons, no trip charges, no equipment fees. Call (720) 799-2292 for a free estimate - we put our number next to any competitor’s written quote under our Free Second Opinion policy.
Why Denver Homeowners Call CleanRun Air Duct Cleaning Denver for Guardsman Work

We’ve serviced Guardsman, Lennox, Trane, and Carrier dryer vent systems in Denver since 2013 - over 52,000 homes, every one with a written price first and a photo record at completion. Tomas Reyes and our crew know the difference between a GDV-series elbow and a ProVent transition by sight, and we stock the fittings that fit without improvisation.
Haven Standard Clause 3: Verified Crews means background-checked, uniformed technicians identified by name before arrival. The 365-Day Done Right Promise is written on every invoice, not a website footnote. And because we also service Lennox, Trane, and Carrier systems, we can advise when a multi-brand HVAC-dryer integration issue is the real problem behind your vent symptoms.
FAQs
Will having CleanRun service my Guardsman vent void the warranty?
No. As an independent Guardsman service provider, we perform cleaning and maintenance that does not alter factory specifications or safety controls; warranty coverage for defects in materials or workmanship remains intact. We document our methods in writing if you need to file a claim. Call (720) 799-2292 if you have questions about your specific warranty period.
Can you get OEM Guardsman parts, or only aftermarket?
We source OEM Guardsman components for active-warranty units and proprietary assemblies; for older units, we use quality aftermarket equivalents that meet the same pressure and temperature ratings, noted in writing on your invoice. You see the part before it goes in.
How do I know the vent was actually cleaned, not just vacuumed at the opening?
Our Documented Photo Record shows the interior of every duct run before and after - the lint accumulation at the elbow, the clear passage after extraction, the airflow reading at the cap. You receive these images as part of the standard job record, not upon request.
My Guardsman dryer is taking two cycles to dry. Is it the vent or the appliance?
In Denver’s hard water and high-altitude conditions, we find about 60% of extended dry times trace to vent restriction rather than element failure. We measure exhaust temperature and static pressure at the cap to separate vent from appliance issues before recommending any repair. A free estimate lets us diagnose without commitment.
How often should a Guardsman dryer vent be professionally cleaned in Denver?
For typical Denver households with two to four loads weekly, we recommend inspection every 18 to 24 months; households with pets, heavy linens, or long vent runs (25+ feet) benefit from annual service. The photo record from your last cleaning lets us compare accumulation rates and adjust the interval. Call (720) 799-2292 to schedule.
Written by Tomas Reyes, Owner, CleanRun Air Duct Cleaning Denver at CleanRun Air Duct Cleaning Denver, serving Denver and nearby areas.




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