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 San Antonio: What to Know First
Nikro air duct cleaning in San Antonio runs $400 – $850 for a full residential system, and we complete most jobs in half a day. As an independent Nikro service provider, we clean the ductwork connected to Nikro-branded HEPA vacuum systems and filtration units rather than repairing the machines themselves – but since we run Nikro HEPA extraction equipment on our own trucks, we know exactly how these systems behave under San Antonio’s dust load. If you own a Nikro unit and your ducts haven’t been cleaned in years, call (254) 347-3897 for a written quote before any work starts.
This page is for San Antonio homeowners and commercial property managers whose HVAC or duct system involves Nikro equipment – whether that’s a Nikro HEPA vacuum used for allergen control, or a whole-home filtration setup tied to your ductwork – and who want a cleaning crew that understands the machine, not just the ducts. Omar Haddad and his crew have pulled decades of San Antonio dust out of systems exactly like yours.
- Key takeaways: Full Nikro-compatible duct cleaning runs $400 – $850 for most San Antonio homes; we run Nikro HEPA vacuums ourselves; every job includes before-and-after photos; written price before we start; 365-Day Done Right Promise on the whole booking.
How Nikro Products Fail – and How We Fix Them
Nikro builds serious HEPA filtration and vacuum extraction equipment – the kind used in mold remediation and lead abatement, not just duct cleaning. But in San Antonio, where the HVAC runs nine months a year and cedar season turns every filter into a brick, even Nikro gear gets pushed past its design assumptions. Here’s what we actually see:
- Nikro HEPA units starving for airflow on San Antonio return plenums. The Nikro NS series and similar HEPA vacuums rely on steady negative pressure, but San Antonio homes with undersized returns or clogged filter racks choke the machine. Symptom: the unit runs hot and the suction drops. Our fix: we clean the return side first, confirm static pressure, and only then run the Nikro extraction – so the machine works with clean airflow, not against a blocked duct.
- Dust caking in supply ducts downstream of Nikro filtration units. Homeowners assume a Nikro filter means clean ducts. It doesn’t. The filter catches what reaches it, but San Antonio’s limestone dust and sheetrock fines settle in supply runs before the filter sees them. We regularly pull three to five pounds of fine white dust from supply ducts in homes where the Nikro unit itself is perfectly fine.
- HEPA filter bypass on older Nikro WS-series units. When the pre-filter gets clogged, air finds the path of least resistance around the gasket. You get the sound of a working vacuum and none of the filtration. We check gasket seating and pre-filter condition on every Nikro-related job before we touch the ductwork, because extracting dust with a bypassing HEPA just recirculates it into the living room.
- Return duct contamination from San Antonio’s allergy seasons. Mountain cedar in winter, oak in spring, ragweed in fall – your return ducts collect it all. Nikro systems are often installed precisely because someone in the house has allergies, but a dirty return duct keeps feeding allergen particles back into the air stream. We run the full Nikro extraction on return and supply sides so the filtration system isn’t fighting a contaminated duct run.
- Commercial Nikro setups with neglected branch lines. We see this in medical offices and small commercial buildings around San Antonio: the main trunk gets cleaned, and the branch lines get skipped. Dust and debris settle in low-flow branch runs, then break loose when airflow patterns change. We clean every branch line with the same Nikro HEPA extraction standard, then camera-verify the result.
Styles & brands we work with




Our Nikro Air Duct Cleaning Process
Here’s how a Nikro job goes start to finish, whether you’re in Alamo Heights or out near Helotes:
- 1
Call and talk to a live person. You reach us at (254) 347-3897 – no phone tree, no voicemail. We ask about your system, your square footage, and any Nikro equipment in play, then give you a written price range before we ever book the visit.
- 2
On-site walkthrough and camera inspection. Our technician – uniformed, background-checked, name known before arrival – runs a video scope through your supply and return ducts. You see what we see: dust layers, debris, any Nikro filter bypass issue, and exactly which runs need work.
- 3
Written price, handed to you. After the inspection, we write the price down. It doesn’t change at the door, and nothing gets touched until you approve it. If the scope is smaller than expected, the price drops – never the reverse.
- 4
Containment and cleaning. We seal off the work area with Abatement Technologies containment where needed, cut access points, and run our Rotobrush rotary brush system plus Nikro HEPA negative-air extraction. The loosened debris goes straight into the HEPA vacuum – not back into your house.
- 5
Before-and-after photo proof. You get photos of your own ducts, before and after. If you can’t see the difference, we didn’t do the job right.
- 6
Final walkthrough and the 365-Day Done Right Promise. We walk the system with you, confirm airflow at the registers, and leave you a digital invoice payable from your phone. Every job is backed for a full year: if it’s not right within 365 days, we come back and correct it at no charge.
See the difference
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AfterWhat Nikro Air Duct Cleaning Costs in San Antonio
Most standard single-family homes in San Antonio fall between $400 and $850 for a full Nikro-compatible duct cleaning, including all supply and return runs. A larger two-story home or one with long flex-duct runs in the attic can push toward $1,200. What moves the price: total number of duct runs, how much contamination has built up, whether you have a Nikro filtration unit that needs pre-filter and gasket checked, and whether we’re also cleaning the air handler and coil. Commercial jobs are quoted per building. We hand you the written price after the camera inspection and before any work starts – that number is the number, no add-ons at the end. Call (254) 347-3897 for a free estimate on your system.
Why San Antonio Homeowners Call Cardinal Air Duct San Antonio for Nikro Work
We run Nikro HEPA extraction equipment on our own trucks, so when we show up to clean ducts tied to a Nikro system, we’re not learning the equipment on your dime. We also service homes with Lennox, Trane, and Carrier HVAC setups, so we understand how your Nikro filtration or vacuum integrates with the broader system rather than treating the ducts in isolation. Every booking operates under the Relay Standard: a live trackable arrival window, before-and-after photo documentation, and a digital invoice you can pay from a link – built for phone-first San Antonio homeowners who don’t want a four-hour arrival window. And the 365-Day Done Right Promise covers every single job, not select ones. If the work isn’t right within a year, we return and make it right at no charge. Clean ducts, straight answers, real price – that’s the whole pitch. Omar Haddad built Cardinal Air Duct San Antonio around it.
FAQs
No – as an independent Nikro service provider, we clean the ductwork connected to your Nikro equipment, not the machine’s internal components. We do check the pre-filter and HEPA gasket seating while we’re there and flag any bypass issues, but we recommend Nikro-certified service for internal repairs. Before any work starts, we’ll tell you exactly what we’ll touch and what we won’t. Call (254) 347-3897 with your unit’s model number and we’ll walk you through it.
Every three to five years for most San Antonio homes, with one caveat: if anyone in the house has serious allergies or a respiratory condition, or if your Nikro filtration unit exists specifically for allergen control, every two to three years is more realistic. San Antonio’s cedar and oak seasons load return ducts with fine particulate that the Nikro filter never sees until it’s already settled in the duct run.
Dust in the living space often comes from contaminated ductwork downstream of the Nikro filter – supply runs, branch lines, and the air handler itself. The Nikro unit catches what returns through it; it can’t clean what’s already settled in the supply ducts or what’s blowing off a dirty coil. That’s why we clean the entire path, not just the return side. Call (254) 347-3897 and we’ll camera-inspect the full system to find where the dust is actually coming from.
For our own Nikro HEPA vacuums, yes – we run OEM filters and pre-filters because a bypassing aftermarket filter defeats the whole purpose of HEPA extraction. On your duct system itself, parts like access caps and register boots are typically universal, and we’ll tell you upfront what we’re using and why it meets or exceeds spec. Written price before any work starts, every time.
Most residential jobs are scheduled within a week, and the cleaning itself is typically done in half a day. Commercial Nikro-related duct cleanings in San Antonio are quoted per building, and we’ll give you a firm written price after the walkthrough. Call (254) 347-3897 to get on the schedule – a live person answers.
Written by Omar Haddad, Owner, Cardinal Air Duct San Antonio at Cardinal Air Duct San Antonio, serving San Antonio and nearby areas.