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 Air Quality & Sanitizing in Alexandria: What to Know First
CleanRun provides independent Guardsman air quality and sanitizing service in Alexandria, with most jobs scheduled within a few business days and completed in a single visit. A typical Guardsman UV light installation or whole-system sanitizing runs $340-$780, and we deliver a written price before any work starts - Haven Standard Clause 1. This page is for Alexandria homeowners who own a Guardsman air purifier, UV system, or whole-home sanitizer and need service that preserves their warranty while delivering documented results they can see. Call (240) 318-7712 for a free estimate.
How Guardsman Products Fail - and How We Fix Them
- Guardsman GUV-100 series UV lamps lose output after 9,000 hours. The 254-nanometer germicidal output drops below effective levels while the lamp still glows blue, so homeowners think it’s working. We measure actual UV-C output with a calibrated radiometer - not visual inspection - and replace with Guardsman-specified 17-inch T5 UV-C lamps or verified equivalents that match the ballast draw.
- Guardsman PureAir 2000 electronic air cleaners develop ozone byproduct when collector cells crack. The ionizing wires and aluminum plates in these units can arc if a cell develops a hairline fracture, producing ozone above safe thresholds. We photograph the collector assembly under magnification, replace cracked cells with OEM Guardsman parts or certified aftermarket equivalents, and verify post-repair ozone levels with a handheld meter.
- Guardsman APCO-X whole-home in-duct purifiers see reduced effectiveness when the carbon matrix saturates. The photocatalytic oxidation matrix binds VOCs and odors, but Alexandria’s humidity swings - especially in spring and fall - accelerate saturation. We pull the APCO-X, weigh the carbon core against factory spec, and replace only when depleted rather than on a rigid calendar.
- Guardsman REME-HALO units in older Alexandria homes develop grounding faults. The REME-HALO’s ionized hydroperoxide output requires a stable ground path, and knob-and-tube remnants or aluminum branch wiring in Del Ray and Rosemont basements create intermittent faults. We test ground impedance at the HVAC junction box before condemning the unit - often the fix is electrical, not the sanitizer itself.
- Guardsman polarized media filters in the PMP series load unevenly in systems with poor return airflow. The 1-inch and 4-inch polarized mats need laminar flow to charge evenly; pinched flex duct or undersized returns cause channeling. We map static pressure across the filter bank, identify the restriction, and correct the duct geometry before installing replacement media - otherwise the new filter fails the same way.
Our Guardsman Air Quality & Sanitizing Process

- 1
System identification and scope. We record the exact Guardsman model, serial, and install date, then photograph the current unit in place - including any warning lights or error codes on digital models.
- 2
Written price delivery. Before any panel comes off, we provide a fixed price for the full scope. Haven Standard Clause 1: no work starts without a signed written estimate.
- 3
Diagnostic with documentation. We test lamp output, measure airflow, check electrical draw, and photograph internal conditions. The duct doesn’t lie - we just show you what’s in it.
- 4
Parts decision and repair. OEM Guardsman parts when warranty preservation matters; quality aftermarket when the unit is out of warranty and the part meets manufacturer spec. We note the choice on the work order.
- 5
Post-repair verification. We retest the same parameters, run the system through a complete cycle, and photograph the installed components. The customer receives the before-and-after photo record as a standard deliverable.
- 6
Written guarantee. The 365-Day Done Right Promise goes on the invoice before we leave. If it’s not right, we make it right.
Before
AfterWhat Guardsman Air Quality & Sanitizing Costs in Alexandria
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Guardsman UV-C lamp replacement (single) | $180-$290 | Ballast condition, access difficulty, lamp spec (standard vs. high-output) |
| Guardsman collector cell cleaning or replacement | $240-$420 | Cell count, crack severity, OEM vs. aftermarket |
| Guardsman APCO-X/REME-HALO service or replacement | $340-$780 | Duct access, electrical grounding condition, core saturation level |
| Whole-system sanitizing with Guardsman component | $420-$680 | System tonnage, duct run count, contamination type (mold vs. bacterial) |
| Guardsman polarized media filter replacement with airflow correction | $290-$520 | Filter size, static pressure issues, duct modification needed |
These are whole-system prices, not per-vent teaser rates. Every estimate is free, written, and fixed before work begins. Call (240) 318-7712.
Why Alexandria Homeowners Call CleanRun Air Duct Cleaning Alexandria for Guardsman Work

We’ve been servicing Alexandria since 2013, and we’ve learned that Guardsman equipment - particularly the APCO-X and REME-HALO lines popular in 2018-2023 new construction - rewards technicians who read the manual instead of improvising. Tomas Reyes and our crew are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. We also service Lennox, Trane, and Carrier systems, which matters when your Guardsman sanitizer is integrated with a multi-brand HVAC setup common in Alexandria’s mixed-era housing stock. Every job ends with a Documented Photo Record and the 365-Day Done Right Promise in writing. No manager approval needed - it’s on the invoice.
FAQs
No - as an independent Guardsman service provider, we use OEM-specified parts and follow manufacturer procedures, which preserves warranty coverage. We document parts numbers and installation methods on your work order so you have proof if a warranty question ever arises. Call (240) 318-7712 if you need a copy of our service documentation standards.
We measure before and after. For UV systems, that’s radiometer readings at specified distance. For whole-home sanitizers, it’s airflow patterns and - where mold or bacteria was suspected - visual documentation of colony reduction. You receive the photo record and test results as standard deliverables, not upon request.
Replace when repair costs exceed 60% of a new unit installed, or when the technology has been superseded by a meaningfully more effective Guardsman line. We provide both numbers in writing and let the homeowner decide. No replacement pressure - Haven Standard Clause 1 applies to either path.
Common Guardsman UV lamps, collector cells, and carbon cores are stocked by regional distributors we pull from daily. Specialty REME-HALO first-generation ballasts or discontinued PMP series media may take 3-5 business days. We tell you which category your part falls into before you sign the estimate.
UV lamps every 9,000 operating hours - typically 12-14 months in Alexandria’s heating-plus-cooling climate. Carbon-based units like the APCO-X every 2-3 years unless you notice return odors. Electronic air cleaners need annual cell inspection. We note your install date and send a maintenance reminder; no subscription required.
Written by Tomas Reyes, Owner & Lead Technician, CleanRun Air Duct Cleaning Alexandria at CleanRun Air Duct Cleaning Alexandria, serving Alexandria and nearby areas.




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