Whole-home duct cleaning
Dryer vent cleaning
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Sanitizing & deodorizingWhole-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 Vent Sanitizing: The Las Vegas Owner’s Guide
If you’re looking for Guardsman vent sanitizing in Las Vegas, here’s the straight answer: we stock Guardsman sanitizing products on our trucks and install them as part of a full system cleaning or as a standalone service, typically running $89 to $189 depending on home size and the condition of your ductwork. Most jobs are completed in a single visit, and you’ll get a written price before we touch anything. The usual way people find us is simple: their AC has been running hard through a Las Vegas summer, the vents are blowing a musty or sour smell, and the standard cleaning they had done last year didn’t address what’s actually growing inside the plenum and supply lines.
Guardsman makes a specific line of EPA-registered sanitizers and deodorizers built for HVAC systems. We’re an independent provider, not affiliated with Guardsman, but we work with their products because they hold up in desert conditions where interior coil moisture meets 110-degree attic heat. That combination is exactly what turns a minor dust problem into a biological one, and it’s the main reason a vent sanitizing call in Las Vegas is different from the same job in, say, Portland.
Which Guardsman Models This Applies To
Guardsman’s HVAC product line splits into two main categories: the aerosol fogging products (like their Air Freshener and Odor Counteractant lines) and the liquid sanitizer concentrates used in spray or ULV applications. The compatibility question most owners face is whether their system can be treated with the aerosol fogger or needs the liquid application. Systems with flexible ductwork, for example, should not be fogged with certain aerosol products because the propellant can degrade older flex liner. We check that before anything gets applied.
The model number on a Guardsman product label will tell you what you’re dealing with. Look for the EPA registration number on the can or jug, not the marketing name. Guardsman’s sanitizer products are registered for HVAC use specifically, and that registration matters in Nevada because state code requires any antimicrobial applied inside ductwork to be registered for that purpose. We handle the product selection, so you don’t need to decode labels. But if you’ve got a partially used Guardsman product sitting in the garage from a previous service and you’re wondering if we’d use it, the answer is no: we only apply product from our own sealed inventory, so we know exactly what’s going into your air stream.
For OEM versus aftermarket: Guardsman is itself a specialty product line, so there’s not much of a knockoff market the way there is for, say, Trane or Lennox parts. What you’re really choosing between is a Guardsman chemical product and a competing chemical product like Abatement Technologies’ line. We carry both and will recommend whichever matches your system’s material and your household’s sensitivity concerns. If someone in the house has COPD, asthma, or chemical sensitivities, that changes the recommendation before we spray anything.
Styles & brands we work with
Signs Your Guardsman Vent Sanitizing Is Failing
- Musty smell returns within weeks of a prior sanitizing. This usually means the sanitizing was applied without first removing the organic material feeding the odor. Sanitizer is a surface treatment, not a cleaner. If the source load is still there, the smell comes back as soon as the product dissipates.
- Black or gray dust accumulating around supply registers. That’s often microbial growth mixing with normal desert dust, and it’s a sign the sanitizing wasn’t applied to the full run length, typically because the technician fogged from one access point and called it done.
- Increased allergy symptoms when the AC runs, despite a recent cleaning. In Las Vegas, the dead giveaway is waking up congested during summer when you’ve been symptom-free during the day. The AC has been cycling allergens through the bedroom vents all night.
- Visible moisture staining inside the plenum or at register boots. In our climate, this usually points to a coil pan drainage issue or a duct leak pulling humid garage air. Sanitizer won’t fix the moisture source, and any product applied will be the first thing washed away.
- A chemical or solvent smell lingering more than 48 hours after a fogging. This means too much product was used or the system wasn’t allowed to ventilate properly. A proper application should leave little to no residual chemical odor within a day.
Replacement Cost & What’s Included
In Las Vegas, Guardsman vent sanitizing as a standalone service runs $89 to $189 depending on the number of supply runs, access to the plenum, and whether we’re treating the full system or just affected branches. If it’s bundled with a full air duct cleaning, which is how we recommend doing it, you’re looking at $350 to $650 for the complete package on a typical single-family home. The sanitizing portion is a smaller line item because the labor overlaps with the cleaning access work already being done.
We put the price in writing before any work begins, and that price doesn’t change between the estimate and the invoice. Every sanitizing treatment includes: removal of accessible organic debris before application, application using either ULV fogging or direct spray (matched to your duct material), a dwell time appropriate for the product, and before-and-after photos of the plenum and representative supply runs. The work is covered by our 365-Day Done Right Promise. If the odor returns within a year and it’s tied to what we treated, we come back at no charge under a free second visit.
See the difference
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After
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After
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AfterDIY or Call Us?
Here’s where we’ll be honest with you. You can replace a return filter, vacuum your register faces, and wipe down the visible boot with a household cleaner. Those are owner-level tasks and worthwhile between professional services. What you shouldn’t do is buy a Guardsman-style fogger online and run it through your system yourself. Fogging a duct system requires sealing the supply side properly, controlling dwell time, and knowing what materials are in your ductwork. Overspray onto a hot heat exchanger or heat strip creates a fire risk. Getting the product concentration wrong means either doing nothing useful or leaving a chemical residue that circulates for weeks.
If the smell is coming from inside the ductwork, not from a dirty register or filter, that’s the signal to call us at (725) 726-5532. Marcus Veale has been cleaning systems in Las Vegas long enough to know that a sanitizer without a proper cleaning is just expensive air freshener. If you can’t see what we cleaned, we didn’t do the job right.
FAQs
In Las Vegas, a properly applied Guardsman sanitizing typically lasts 12 to 18 months before organics can re-establish, based on what we see across systems we’ve treated and revisited. That’s longer than a fog-only treatment because we remove the food source first, and it’s shorter than what you might get in a humid climate where the problem is year-round mold pressure rather than seasonal dust accumulation. If you’re going more than two years without a return odor issue, you’re in good shape. Call (725) 726-5532 for an exact quote, and we’ll give you a written price before anything is sprayed.
Sometimes, yes: if the odor is isolated to a single branch run or the return plenum, we can re-treat just that section rather than the full system. That said, a spot re-treatment only makes sense when the rest of the system was properly cleaned at the same time; otherwise you’re chasing smells through the ductwork one run at a time. We’ll inspect first and show you photos of what we find before recommending a scope of work.
Most standalone Guardsman vent sanitizing jobs in Las Vegas take 60 to 90 minutes, including setup, access work, application, and the required dwell and ventilation period. If we’re doing a full air duct cleaning in the same visit, the full appointment runs 3 to 5 hours depending on home size. We’ll tell you the expected time when we give you the written price, so you can plan the rest of your day around it.
We stock Guardsman sanitizing products alongside our other air-quality lines from Honeywell, Aprilaire, and Abatement Technologies, and we carry them on our service vehicles. That means if you call us on a Tuesday with a musty smell that’s been getting worse, we’re not making you wait a week for a product delivery to arrive. We also work with parts and equipment from Rotobrush and Nikro for the cleaning side, so the tech who arrives knows the tools as well as the chemistry.
Ready to See What’s Actually in Your Vents?
We’re Linden Air Duct Las Vegas, and we’ve been serving Las Vegas and nearby areas since 2004 as part of the Threshold Group family. Every technician who walks up to your door has been background-checked, identity-verified, and photo-badged, and you’ll get their name and photo before they arrive. The person answering the phone is a live human being, 24/7. Call us at (725) 726-5532 and we’ll walk through what you’re smelling, what it usually costs, and when we can get to you. No pressure, no bait pricing. Just a straight answer and a written quote.
Written by Marcus Veale, Owner, Linden Air Duct Las Vegas at Linden Air Duct Las Vegas, serving Las Vegas and nearby areas.