Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
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 Air Duct Cleaning in Alpharetta: What to Know First
Guardsman air duct cleaning in Alpharetta runs $450 to $900 for a full system on a typical 2,000 to 3,500 square foot home, and we complete most jobs in half a day. That price covers every supply and return duct, the trunk lines, the plenums, and a video inspection before and after. We’re an independent Guardsman service provider, not a factory-authorized shop, and that means we make calls based on what the ducts actually need, not what a franchise playbook says to sell.
This page is for Alpharetta homeowners who have Guardsman filtration products installed, or a Guardsman-labeled system, and want air duct cleaning done without games on pricing or the work itself. You can reach us at (762) 769-7145. We answer the phone.
How Guardsman Products Fail – and How We Fix Them
Guardsman’s filtration line lives on the air-quality side of the system, and when the ducts behind those filters are dirty or damaged, the products underperform in ways owners often blame on the filter itself. Here’s what we actually find in Alpharetta homes:
- Guardsman media cabinets with collapsed filter tracks. Homes near Alpharetta’s older neighborhoods, especially the two-story builds off Windward Parkway and around Crabapple, have furnace closets that run tight on space. When a 4-inch media filter gets forced into a 1-inch slot or the track is bent, the filter doesn’t seal. Air bypasses the filter entirely. We see it on Guardsman media cabinets regularly. Our techs identify the bypass, correct what’s correctable, and clean the ducts so the system starts breathing through the filter again instead of around it.
- Guardsman electrostatic filters caked from deferred duct cleaning. When supply ducts haven’t been cleaned for six or eight years, the dust load concentrates on the electrostatic filter elements. They choke out, airflow drops, and the blower motor runs longer to compensate. The filter gets blamed. The ducts were the source. After a full negative-air cleaning, static pressure drops and the same filter performs again.
- Return-side leakage pulling attic air into the system. This is a big one in Alpharetta specifically. Attic temperatures here run over 130 degrees in July, and return ducts in unconditioned attic space pull hot, dusty air through any gap at the connections. Guardsman filtration can’t keep up with that volume. We seal and mastic the return ducts as part of our process, which does more for air quality than any filter change.
- Guardsman UV and purification units installed downstream of dirty coils. If the evaporator coil hasn’t been maintained and the ducts are carrying particulate, a Guardsman UV lamp or purification module gets coated and loses effectiveness. We flag this on video inspection, so you can see it before anyone spends money on a lamp replacement.
- Furnace filters saturated because the return plenum was never cleaned. In Alpharetta homes from the late 1990s through the mid-2000s, the return plenum often sits in a finished basement ceiling or a crawlspace where construction debris was swept during the build. That debris cycles through the system, and the Guardsman filter catches it, but only until the filter loads up. Cleaning the plenum resets the system. We check every return and every register, not just the easy ones.
Styles & brands we work with




Our Guardsman Air Duct Cleaning Process
Every Guardsman job follows the same discipline, start to finish. No shortcuts, no skipped registers.
- 1
The call. A live person answers at (762) 769-7145. We schedule a window and we arrive inside it.
- 2
The walkthrough. We locate every register and return, check the filter setup, and note what type of Guardsman product is on the system and where it sits.
- 3
The written price. Before any equipment comes off the truck, you have a written price for the whole job. That number does not move.
- 4
The cleaning. We run a Rotobrush rotary brush through every supply and return line, connected to a Nikro negative-air machine under constant vacuum. No dust gets pushed into the house.
- 5
The video proof. Before-and-after camera footage of your duct interior. If we can reach it, we show it to you. If we couldn’t clean it, we say so.
- 6
The closeout. We walk the job with you, leave the site clean, and your 365-Day Done Right Promise is in writing before we pull out of the driveway.
See the difference
Before
After
Before
After
Before
AfterWhat Guardsman Air Duct Cleaning Costs in Alpharetta
Here are the real numbers we quote in Alpharetta, in writing, before work starts:
- Full system cleaning, 2,000 to 2,500 sq ft: $450 to $650
- Full system cleaning, 2,500 to 3,500 sq ft: $600 to $900
- Return-only cleaning, single system: $250 to $400
- Supply-only cleaning, one floor: $300 to $500
- Duct sealing on top of cleaning (mastic, accessible sections): $200 to $500, quoted after inspection
- Video inspection, standalone: $75 to $150, credited back if you book the cleaning
What moves the price: number of registers, duct accessibility, whether we’re sealing as we go, and whether there’s a second system. Older Alpharetta two-story homes with basement runs and attic returns trend toward the higher end. The price we write down is the price you pay. Call (762) 769-7145 for a free estimate.
Why Alpharetta Homeowners Call Hollis Air Duct Alpharetta for Guardsman Work
We’ve been cleaning ducts since 2004, and we carry the same professional-grade equipment commercial crews run: Rotobrush rotary brush systems, Nikro negative-air machines, and filtration products from Honeywell, Aprilaire, Abatement Technologies, and Guardsman. When a Guardsman owner calls us, they’re not getting a hardware-store shop vac and a flashlight. They’re getting the right tool for the job, and a technician who knows how that job interacts with the filtration products already on the wall.
Our techs are background-checked and uniformed. Our phones are answered by a real person, 24/7, not a callback queue. Every job gets a written price before we touch anything, and every repair is backed by the 365-Day Done Right Promise in writing. If the work fails within a year, we come back and make it right at no charge, including a free second visit. And if your system has Lennox, Trane, or Carrier components mixed in, we service those too. That’s the practical reality of Alpharetta homes: mixed systems are the norm, and we don’t pretend otherwise.
FAQs
No. Routine air duct cleaning does not void a Guardsman product warranty, provided the work is done with negative-air equipment and doesn’t damage the ductwork or the filtration cabinet. We’re an independent Guardsman service provider, so we handle the care and feeding of the system while your manufacturer warranty stays between you and Guardsman. We’ll flag anything that looks like an active warranty claim while we’re in there.
Most Alpharetta jobs are scheduled within 5 to 7 business days when we’re not in the spring and fall rush. If you’re flexible on time of day, we can often do better. Call (762) 769-7145 and we’ll give you a straight answer, not a range.
After. Always after. The cleaning stirs up the debris it removes, and whatever gets airborne needs a fresh filter to catch. We recommend running the system for 30 minutes post-cleaning with a new filter in place. If you need a Guardsman filter at the time of service, ask us to bring one. We’ll tell you exactly what it costs before we install it.
It can be. When return ducts are restricted, the blower works harder and the electrostatic filter’s charged plates gather more stress. We’ve seen it in Alpharetta homes where the return plenum was never cleaned and the filter was doing all the heavy lifting. We’ll video-inspect the return side and show you what’s actually there before anyone blames the filter.
The equipment, the method, and the honesty. Most cheap specials run a brush without a negative-air machine and cover a fixed number of vents. If your house has more vents, the price moves. Our price is written for the whole system before we start, it covers every register and return, and we put the 365-Day Done Right Promise in writing. In Alpharetta, the cheap route usually ends up being the expensive route. Call (762) 769-7145 for a free estimate on the real number.
Written by Roy Castellanos, Owner, Hollis Air Duct Alpharetta at Hollis Air Duct Alpharetta, serving Alpharetta and nearby areas.