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 Duct Repair & Sealing in Schertz: What to Know First
We provide independent Nikro duct repair and sealing in Schertz, TX, with most residential jobs completed in a single scheduled visit and a written price delivered before any panel comes off. Our typical turnaround from call to completion is 3-5 business days for standard repairs, though we keep common Nikro flex duct and collar fittings in stock for faster resolution. As an independent Nikro service provider, we are not affiliated with or authorized by Nikro Corporation, but we service their equipment daily in Schertz homes from the newer builds off Roy Richard Drive to older installations near Cibolo Creek.
This page is for homeowners who have found a Nikro label on their air handler, duct collar, or flex run and need someone who recognizes the product line without a Google search. Call (830) 402-5110 for a free written estimate.
How Nikro Products Fail - and How We Fix Them
- Nikro SL4000 Series flex duct collar separations. The SL4000’s barbed collar-to-flex connection loosens over thermal cycles, especially in Schertz’s 100°F-plus summer attic runs where daily expansion and contraction work the clamp free. We remove the failed clamp, inspect the barb for fatigue cracking, and reinstall with a stainless worm-gear clamp and mastic seal per the original engineering - not a zip-tie patch.
- Nikro PD-8 and PD-10 portable duct cleaning system supply hose abrasion. These units use a corrugated suction hose that chafes against attic joists and truss edges. The abrasion isn’t cosmetic; it creates negative-pressure leaks that reduce extraction efficiency and deposit attic debris into living spaces. We sleeve the damaged section with reinforced flex or replace the run, then photograph the repair for the job record.
- Nikro 860284 and 860285 HEPA vacuum adapter gasket hardening. The EPDM gasket on these adapter collars stiffens after 6-8 years in Texas heat, losing its seal to the main trunk. Air leaks here bypass filtration entirely. We stock the correct replacement gasket profile and torque to manufacturer spec - no silicone caulk substitute that voids any remaining warranty coverage.
- Nikro flex duct inner liner collapse in long horizontal runs. The 25-foot and 35-foot flex runs common in Schertz’s 2015-2020 builds sag between supports when the wire helix fatigues. The collapse creates a dead zone where condensation pools and mold follows. We replace with supported hard pipe where span exceeds 8 feet, or re-support with proper hanger spacing and a new flex run where access demands it.
- Nikro main trunk longitudinal seam separation at plenum junction. The snap-lock seam on Nikro’s galvanized trunk line can walk open when the plenum shifts on its platform, a pattern we see in homes where the original installer skipped seismic strapping. We reseat the seam, apply fiber-reinforced mastic, and add a drive cleat for mechanical backup - not just more mastic on top of a moving joint.
Our Nikro Duct Repair & Sealing Process

- 1
Camera inspection and written scope. We run a borescope through every accessible duct run and photograph what we find. The customer sees the images before any price is discussed.
- 2
Written price under Haven Standard Clause 1. The scope, the parts list, and the total are delivered in writing. No work begins until the customer holds the document.
- 3
Parts decision: OEM Nikro or verified equivalent. We stock common Nikro collars, gaskets, and flex profiles. Where OEM is back-ordered, we source aftermarket parts that match the original specification and document the substitution on the job record.
- 4
Repair and seal with negative-pressure verification. Every joint receives mastic or foil tape appropriate to the temperature rating. We test with a manometer to confirm the system holds design static pressure.
- 5
Documented Photo Record and final walkthrough. Before-and-after images of every repaired run are delivered as standard. The customer signs the completed scope and receives the 365-Day Done Right Promise in writing.
- 6
Cleanup and departure. We leave the attic, closet, or crawl space as found, with all debris removed.
Before
AfterWhat Nikro Duct Repair & Sealing Costs in Schertz
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Single flex duct run replacement (Nikro collar to register) | $340-$580 | Length, attic accessibility, whether the plenum collar is reusable |
| Main trunk seam repair with mastic and mechanical reinforcement | $280-$460 | Linear feet of seam, plenum access, need for platform re-anchoring |
| HEPA adapter gasket replacement (860284/860285 series) | $180-$260 | Gasket availability, concurrent filter replacement |
| Multiple-run sealing with negative-pressure test | $520-$890 | Number of runs, extent of collar replacement, duct accessibility |
These are whole-system prices, not per-vent teaser rates. Every estimate is free, written, and valid for 30 days. Call (830) 402-5110 to schedule.
Why Schertz Homeowners Call CleanRun Air Duct Cleaning Schertz for Nikro Work

We’ve been working Schertz long enough to recognize which builders used Nikro equipment in which subdivisions, and what fails first in each. The 365-Day Done Right Promise applies to every repair, backed in writing, not subject to manager approval. Our technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews, and they arrive with Nikro-compatible parts rather than a prayer that the supply house has stock.
When a Nikro part is obsolete or back-ordered, we also service Lennox, Trane, and Carrier systems, so we’re not learning another brand’s anatomy on your clock. The before photo does the talking. We just bring the camera.
Tomas Reyes, who leads the crew, picked up his trade fundamentals at Apex Technical School in Long Island City and has spent the better part of two decades documenting what actually lives inside residential ductwork. In Schertz, that documentation has included everything from construction debris left in new builds to the gradual separation of Nikro flex collars that owners only notice when their utility bill climbs.
FAQs
No. Nikro’s limited warranty on duct materials covers manufacturing defects, not installation or service by independent technicians. We use warranty-safe practices, document any OEM parts installed, and flag manufacturing defects we find so the customer can pursue Nikro directly if coverage applies. For a free written assessment of your specific system, call (830) 402-5110.
Replacement is warranted when the inner liner is degraded throughout the run, when multiple collar failures indicate systemic undersizing, or when the original flex has exceeded its 15-20 year service life. Repair suffices for isolated collar separations, single-run damage, or seam failures in otherwise sound trunk lines. Our borescope inspection shows which category applies. Call (830) 402-5110 to schedule.
Common collars, gaskets, and adapter profiles remain available; some legacy flex duct sizes are discontinued. We stock current Nikro-compatible parts and source verified equivalents for obsolete sizes, documenting any substitution on the job record. We never install a part we cannot verify matches the original pressure and temperature rating. For parts availability on your specific model, call (830) 402-5110.
Single-run repairs are typically completed in 2-3 hours. Multi-run sealing or main trunk work may extend to a full day. We schedule by the job, not by the hour, so the technician stays until the negative-pressure test passes and the photo record is complete. For scheduling in Schertz, call (830) 402-5110.
The standard deliverable includes the written scope with final price, before-and-after photographs of every duct run accessed, the negative-pressure test result, and the 365-Day Done Right Promise. These are delivered electronically within 24 hours of job completion. For questions about our documentation standard, call (830) 402-5110.
Written by Tomas Reyes, Owner & Lead Technician, CleanRun Air Duct Cleaning Schertz at CleanRun Air Duct Cleaning Schertz, serving Schertz and nearby areas.




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