Whole-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
CleanRun Duct Repair & Cleaning provides independent Nikro air duct cleaning in San Antonio, with most residential systems completed in a single scheduled visit and whole-home pricing starting at $380 for a standard single-system home. We are not affiliated with or authorized by Nikro. Every job begins with a written price delivered before any panel comes off, and every duct run is photographed before and after so you can verify the work against what was promised.
This page is for San Antonio homeowners who own Nikro air duct cleaning equipment or have Nikro-integrated HVAC systems and need service from a crew that knows the difference between a Nikro HP20 and an SL4000 without reading the label twice. If you’re seeing reduced suction, unusual motor noise, or debris left behind after a cleaning cycle, we can diagnose it and show you the cause before you commit to anything. Call (726) 600-7155 for a free estimate.
How Nikro Products Fail - and How We Fix Them
- HP20 Portable Vacuums: The bypass motor on the HP20 is prone to thermal shutdown in San Antonio’s summer heat, especially when operators run extended cycles on long duct runs in two-story Stone Oak homes. The motor housing lacks adequate ventilation for 95°F+ attic work. We test amperage draw at the plenum inlet under load and replace the motor assembly with an OEM-spec unit or a verified aftermarket equivalent rated for continuous duty.
- SL4000 Truck-Mounted Systems: The rotary lobe blower seal degrades faster in high-humidity climates, which means San Antonio’s spring and fall shoulder seasons when attic moisture spikes. Seal failure shows up as oil migration into the filtration path and loss of negative pressure. We replace the seal kit with OEM Viton seals and verify vacuum recovery with a digital manometer before the truck leaves your driveway.
- UV2000 Air Scrubber Attachments: The UV-C lamp ballast fails intermittently after 18-24 months of San Antonio’s hard-water mineral dust, which coats the lamp sleeve and forces the ballast to overdrive. We pull the sleeve, photograph the scaling, and replace both lamp and ballast with matched-wavelength components - mixing brands here reduces efficacy and voids remaining warranty coverage.
- Flex Duct Adapters (All Nikro Portable Lines): The injection-molded collar on Nikro’s flex duct adapters cracks at the set-screw points when repeatedly attached to the crushed flex common in 2015-2020 Alamo Ranch and Boerne-area tract builds. We machine a brass-threaded replacement collar in-house and document the fit with a photo - the OEM part is backordered frequently, and our fix outlasts it.
- HEPA Filter Housings (HP20, SL4000): The gasket channel on Nikro HEPA housings warps from heat cycling in unconditioned San Antonio garages, breaking the seal and dumping fine particulate back into the living space. We check gasket compression with a feeler gauge and replace the housing only when distortion exceeds 1/16 inch - otherwise we install a continuous silicone gasket that maintains seal through temperature swings.
Our Nikro Air Duct Cleaning Process

- 1
Call intake and scheduling. A live person answers, confirms your Nikro model if known, and notes any symptoms - reduced suction, motor heat, visible debris at registers. We schedule a two-hour arrival window, no “sometime between 8 and 5.”
- 2
On-site inspection with photo documentation. The technician introduces themselves by name, scopes every duct run with a camera, and shows you the image before writing anything. The camera goes in first. Then we talk. Haven Standard Clause 1: Written Price Before Work Starts.
- 3
Written scope and pricing. You receive a single-page document with line-item costs for labor, any parts (OEM or specified aftermarket), and the 365-Day Done Right Promise. No per-vent pricing, no open-ended hourly rates. You approve or decline - no pressure.
- 4
Cleaning and repair execution. We use Nikro-compatible equipment from our roster - Rotobrush for agitation, Abatement Technologies HEPA filtration, Nikro vacuum recovery - matched to your system’s specifications. Every register, return, and trunk line is photographed before and after.
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Post-job verification and deliverables. The technician runs a negative-pressure test to confirm seal integrity, reviews the photo record with you on a tablet, and leaves printed documentation: scope, photos, warranty terms, and itemized receipt.
- 6
365-Day follow-up accountability. The Done Right Promise is dated and signed. If suction drops, a seal fails, or debris reappears where we cleaned, we return and make it right - no dispatch fee, no “manager approval.”
Before
AfterWhat Nikro Air Duct Cleaning Costs in San Antonio
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Standard residential duct cleaning (single system, up to 12 runs) | $380 - $620 | Accessibility of attic plenum, presence of crushed flex duct, additional returns |
| Nikro HP20 motor replacement or seal repair | $180 - $340 | OEM vs. aftermarket motor, extent of thermal damage to housing |
| SL4000 blower seal service | $260 - $480 | Single seal vs. full lobe rebuild, oil contamination cleanup required |
| UV2000 lamp and ballast replacement | $140 - $280 | Single lamp or paired installation, mineral scaling severity |
| Commercial system (multi-zone, 20+ runs) | $780 - $1,400 | System count, access constraints, after-hours scheduling |
These are whole-system prices agreed before work starts - not teaser rates that balloon once the truck arrives. San Antonio’s clay soil and limestone substrate mean older homes near Terrell Hills and Olmos Park often have settled ductwork with gaps we photograph and seal, which can add $120-$240 to the scope if you approve it. Call (726) 600-7155 for an exact quote - estimates are free.
Why San Antonio Homeowners Call CleanRun Duct Cleaning San Antonio for Nikro Work

We’ve been at this since 2013, and in that time we’ve learned that Nikro equipment owners in San Antonio have specific expectations: the machine should run hard in 100-degree attics, the filter seal should hold through humidity swings, and the company that services it should know the part number without a lookup. Tomas Reyes and our crew have logged thousands of hours on Nikro, Rotobrush, and Abatement Technologies equipment, including tract homes near Stone Oak where flex duct collapses and dust accumulation are textbook examples of what we document on every job.
Our technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. We also service Lennox, Trane, and Carrier integrated systems, so when your Nikro cleaning reveals an HVAC issue beyond the ductwork, we can diagnose it without calling a second contractor. Every job carries the 365-Day Done Right Promise in writing, and every estimate can be compared to a competitor’s quote through our Free Second Opinion - Haven Standard Clause 7.
FAQs
No. As an independent Nikro service provider, we use OEM-spec or equivalent parts and document serial numbers and installation dates, which satisfies warranty record requirements. Warranty coverage is voided only by unauthorized modifications or incorrect parts - we photograph every component before installation so there’s no dispute.
Replacement becomes the honest recommendation when repair costs exceed 60% of replacement value or when the unit has suffered thermal damage to the motor housing. We show you the damage photograph and both numbers in writing before you decide. Call (726) 600-7155 and we’ll scope it.
Common wear items - seals, lamps, filters - we stock. Specialized motor assemblies or discontinued HP20 components may require 3-5 business days. We tell you availability before you approve the scope, not after we’ve started disassembly.
Residential units used annually should have blower seals and filter housings inspected every 24 months; commercial units on quarterly cycles need annual service. San Antonio’s hard water mineral dust and high attic temperatures accelerate wear - we document this with photos from your actual system, not generic schedules.
Yes. We isolate the Nikro vacuum from the HVAC blower using sealed plenum ports, never the return grille, to prevent pressure imbalance that can damage sensitive Carrier or Trane control boards common in San Antonio’s newer builds. The method is photographed and included in your job record.
Written by Tomas Reyes, Owner, CleanRun Air Duct Cleaning San Antonio at CleanRun Air Duct Cleaning San Antonio, serving San Antonio and nearby areas.




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