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 HVAC Cleaning in Marietta: What to Know First
Nikro HVAC cleaning in Marietta runs $180 – $520 depending on which components need work, and most jobs are finished in a single visit. We clean evaporator coils, blowers, air handlers, condensers, and heat exchangers on Nikro systems across Cobb County, and every quote is handed to you in writing before we touch a single panel. Our techs are trained on Nikro’s HEPA extraction equipment and the ductwork attached to it, so the cleaning actually holds.

This page is for Marietta homeowners with a Nikro system who want straight answers: what fails, what it costs, and how we fix it. Call (762) 216-4075 for a free estimate.
How Nikro Products Fail – and How We Fix Them
We’re an independent Nikro service provider, not an authorized dealer, which means we can tell you exactly where these machines collect dirt and what happens when they do. Here’s what we see on Nikro jobs in Marietta:
- Nikro industrial HEPA units (the 3000-series and similar) lose suction when the primary filter clogs with fine Georgia clay dust. You’ll hear the motor pitch change before you notice airflow drop. We inspect and clean the filter housing, pre-filters, and impeller fins during every service, because a HEPA vacuum that’s choking is just moving dust around, not collecting it.
- Nikro negative-air machines with carbon filters develop odor bleed-through when the carbon bed saturates, especially in Marietta’s humid summers when HVAC runtimes spike. We replace saturated carbon media and clean the blower wheel so the unit actually scrubs instead of recirculating the smell.
- Nikro extraction arms and hose systems crack at the flex points after years of hot attics and cold crawlspaces. A small split drops static pressure enough to leave fine particulate in the duct runs. We pressure-test the line, replace cracked sections, and verify suction at the distal end before calling the job done.
- Nikro coil-cleaning attachments wear at the spray nozzles, which leads to uneven chemical distribution on evaporator coils. You get clean patches next to still-fouled fins. We inspect nozzle condition and replace worn tips so the coil gets full, even coverage every time.
- Blower motor bearings on Nikro units in Marietta attics fail faster than ground-mounted systems because attic temperatures routinely hit 130°F in August. We pull the blower, clean the wheel, check bearing play, and flag any bearing that’s starting to growl before it seizes and takes the motor with it.
Styles & brands we work with




Our Nikro HVAC Cleaning Process
Every Nikro job follows the same sequence, whether we’re cleaning a residential air handler or a full negative-air system:
- 1
Visual inspection and static pressure reading. We open panels, check the blower, coil, filter, and drain pan, and take a before photo. We also check for water staining around the air handler, which tells us if a dirty coil has been freezing up.
- 2
Filter and pre-filter assessment. We check filter size, MERV rating, and how clogged the current filter is. If the filter is collapsed or bypassing, we flag it in the quote.
- 3
Containment setup. We use Abatement Technologies containment equipment to keep loosened debris from leaving the work area. This isn’t a courtesy; it’s a negative-pressure floor we run so your living room doesn’t get dusted.
- 4
Mechanical cleaning with Rotobrush and Nikro extraction. We brush the duct runs and use Nikro HEPA vacuum extraction to pull loosened material out at the source. The Nikro unit holds the pressure differential so debris goes into the vacuum, not back into your home.
- 5
Component-level cleaning. Evaporator coil, blower wheel, condenser coil, heat exchanger, and drain pan each get cleaned with the appropriate chemical and tool. We do not shortcut this by fogging everything and calling it done.
- 6
Post-work verification. We take after photos, re-check static pressure, run the system for at least 15 minutes, and confirm the coil temperature drop is where it should be. You get the photos and the invoice before we leave.
See the difference
Before
After
Before
After
Before
AfterWhat Nikro HVAC Cleaning Costs in Marietta
Most standard Nikro HVAC cleanings in Marietta run $180 – $520, with the spread driven by system size and what’s actually dirty. Here’s the breakdown:
| Scope of Work | Typical Range |
|---|---|
| Evaporator coil cleaning (single system) | $150 – $280 |
| Blower wheel and housing cleaning | $80 – $160 |
| Condenser coil cleaning (outdoor unit) | $90 – $180 |
| Full air handler cleaning (coil, blower, drain pan, cabinet) | $220 – $390 |
| Complete system clean (ducts, air handler, condenser) | $380 – $520 |
What moves the price: accessible attic systems are faster than crawlspace work, heavy microbial growth on the coil adds chemical and dwell time, and older Nikro units with frozen-coil damage need de-icing and a full drain-line flush before cleaning starts. You get one flat price per system before any work begins and it does not change at the door. Call (762) 216-4075 for an exact quote.
Why Marietta Homeowners Call Cardinal Air Duct Marietta for Nikro Work
Omar Haddad and his crew have worked on Nikro systems from the Historic Marietta Square to East Cobb and Powder Springs, and they run every job with the same standard: written price first, photos after, and a full-year guarantee on the work. The 365-Day Done Right Promise means if your Nikro cleaning isn’t right within 365 days, we return and correct it at no charge. If a repair fails, we come back free. You’ll know your tech’s name before they arrive, they’ll be in uniform, and you’ll get a live trackable arrival window through The Relay Standard. We also work on Lennox, Trane, and Carrier systems, so if your Nikro unit sits beside another brand, we can handle the whole HVAC picture in one visit. Dirty ducts don’t fix themselves, let’s just get it done right.
FAQs
No. Regular cleaning using non-damaging tools and OEM-compatible chemicals will not void your Nikro warranty, provided the work is done correctly. We use Nikro’s own extraction equipment and Rotobrush brushes sized to the duct, and we never cut access holes in ductwork. If you have an extended warranty with specific service requirements, call (762) 216-4075 and we’ll confirm the job meets them before we start.
Every 3 to 5 years for most Marietta homes, but homes with shedding pets, recent renovation work, or smokers should consider every 2 years. Georgia’s pollen load in spring plus summer humidity creates a sticky film on coils that captures more particulate than dry climates do, so your Nikro unit works harder here than it would elsewhere.
Yes. If your ductwork was cleaned recently and only the coil or blower is fouled, we’ll scope and price just the components. We’ll still inspect the ducts and tell you honestly if they need work, but we will not upsell a duct cleaning you don’t need. The written price covers what you approved, nothing else.
You get before-and-after photos of every component we clean, including the coil face, blower wheel, and duct interior, delivered to your phone as part of The Relay Standard. If the after photo doesn’t look clean, you don’t pay until it does. And if a problem recurs within 365 days, we come back free.
Usually. Musty odors on startup are typically from biological growth on the evaporator coil or in the drain pan, which is exactly what a full HVAC cleaning removes. If the odor persists after a proper cleaning, the source may be in the duct liner or return air path, and we’ll trace it before recommending anything further. Call (762) 216-4075 and we’ll get it diagnosed.
Written by Omar Haddad, Owner, Cardinal Air Duct Marietta at Cardinal Air Duct Marietta, serving Marietta and nearby areas.