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.
Nikro Air Duct Cleaning in Alpharetta: What to Know First
Independent Nikro air duct cleaning in Alpharetta typically runs $450 – $850 for a full system, and most jobs are completed in half a day. That’s the honest price posture: we write the number down before any work starts, and it doesn’t move at the door. This page is for Alpharetta homeowners with Nikro equipment who want their ductwork cleaned by a crew that actually knows the brand. If that’s you, call (762) 769-7145 for a free estimate.
How Nikro Products Fail – and How We Fix Them
The Nikro name shows up most often in Alpharetta on industrial and commercial negative-air machines, but plenty of residential systems in this area run Nikro filtration components or Nikro-built duct runs. Here’s what we see across the brand and how we address it on a duct cleaning job.
- Nikro negative-air units losing suction mid-job. On the Nikro NP series and similar negative-air machines, a clogged pre-filter or a worn internal gasket drops static pressure fast. We see this on Alpharetta homes where drywall dust from renovations got pulled into the ductwork. Our fix: replace the pre-filter, inspect the gasket seating, and verify suction with a manometer before we call the job done.
- Filter rack bypass on Nikro media filter housings. Nikro filter racks, like those paired with their air scrubbers, can develop a gap where the filter doesn’t seat flush. That lets unfiltered air skip around the media and coat the supply ducts with dust. We check filter seating on every Nikro job and correct any bypass before cleaning begins.
- Loose duct collars on Nikro supply plenums. On older Nikro duct runs, the sheet-metal collars where flex duct attaches can work loose over time, especially in Alpharetta’s humidity swings. Loose collars pull attic air and insulation into the system. We re-secure and seal collars with mastic as part of the cleaning, because cleaning a leaky system is wasted labor.
- Return-side buildup on Nikro systems in two-story Alpharetta homes. Roy Castellanos has spent years cleaning ducts in older two-story houses near Windward Parkway, and the return-side debris on Nikro systems there tells a story: long runs, sharp bends, and years of deferred maintenance. The buildup restricts airflow and shortens filter life. We run a rotary brush through every return, not just the easy ones.
- Blower wheel fouling on Nikro air handlers. When Nikro air handlers run with dirty ducts, the blower wheel collects a layer of dust that throws off balance and cuts airflow. We pull the blower assembly, clean the wheel by hand, and verify amperage draw after reassembly. That’s a step most duct cleaning crews skip.
Styles & brands we work with




Our Nikro Air Duct Cleaning Process
- 1
Call and schedule. A live person answers. We book a window, put it in writing, and confirm before we roll.
- 2
On-site inspection. The tech checks every register, every return, and the air handler. Nikro systems get a filter rack and collar check before any cleaning starts.
- 3
Negative-air setup. We connect a Nikro-compatible negative-air machine to the main trunk to keep dust from entering your living space during the cleaning.
- 4
Rotary brush cleaning. We run a Rotobrush rotary brush system through supply and return ducts, including flex runs and hard pipe, agitating years of buildup loose.
- 5
Component work. Blower wheel, filter housing, and any collars that need mastic get addressed while the system is open.
- 6
Video inspection and walkthrough. We show you before-and-after footage of your own ducts, then leave the site clean and hand you the written guarantee.
See the difference
Before
After
Before
After
Before
AfterWhat Nikro Air Duct Cleaning Costs in Alpharetta
Here are the prices we quote, in writing, before work begins. No per-vent games. No coupon price that triples once the van is in your driveway.
- Full system cleaning (single HVAC system, typical Alpharetta home): $450 – $650
- Two-system homes or systems with long flex runs: $650 – $850
- Nikro filter housing reseal or collar repair, added to cleaning: $75 – $150
- Blower wheel pull and clean: $125 – $175
What moves the price: the number of systems, the amount of buildup, whether the blower wheel needs pulling, and whether any collars or filter racks need mastic work. Call (762) 769-7145 for a free estimate, and the number we quote is the number you pay.
Why Alpharetta Homeowners Call Hollis Air Duct Alpharetta for Nikro Work
We’ve been doing this since 2004, as part of the Garrison Partners family, and the standard hasn’t changed: show up inside the window, write the price before work starts, do the job by the book, and leave the site clean. That’s The Garrison Code. Every job is covered by our 365-Day Done Right Promise. If something isn’t right within a year, we come back at no charge. That includes a free second visit. Our techs are background-checked, uniformed, and trained on Nikro equipment specifically. And if you have Lennox, Trane, or Carrier components in the same system, we know those too. One crew, one written guarantee, no moving targets.
FAQs
No. As an independent Nikro service provider, we clean existing ductwork and components without altering the manufacturer’s equipment warranty. We use cleaning methods that meet industry standards, and we never modify Nikro components in a way that would void coverage. If you have a specific warranty question, call (762) 769-7145 and we’ll tell you what we’re seeing.
For filter housings, gaskets, and collars attached to Nikro equipment, OEM parts fit correctly the first time, which matters when you’re sealing against air leaks. In some cases, a quality aftermarket filter media works fine. We’ll quote you both options when both make sense, and we’ll tell you which one we’d put in our own home.
We run a video inspection before and after every Nikro duct cleaning job in Alpharetta. You see the buildup, then you see the same ducts clean. No edited highlight reel. The footage is of your system, shot on the same visit.
Every three to five years for most Alpharetta homes is realistic. If you renovated, have pets, or live near construction, sooner. If your returns have never been touched in a two-story home, the answer is now. Call (762) 769-7145 for an honest read on what your system actually needs.
Yes. We handle commercial duct cleaning for Nikro negative-air and media-filtration setups across Alpharetta, including supply and return cleaning, video inspection, and filter rack repairs. Pricing is written upfront, and the 365-Day Done Right Promise applies to commercial work the same as residential.
Written by Roy Castellanos, Owner, Hollis Air Duct Alpharetta at Hollis Air Duct Alpharetta, serving Alpharetta and nearby areas.