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.
Before
After
Before
After
Before
AfterHoneywell Duct Repair & Sealing in San Antonio: What to Know First
CleanRun Air Duct Cleaning San Antonio provides independent Honeywell duct repair and sealing across Bexar County, with most jobs completed in a single scheduled visit and a written price delivered before any panel comes off. We’re not affiliated with Honeywell, but we’ve worked on their equipment in San Antonio homes since 2013 and stock the parts that fail most often in this climate. Typical Honeywell duct repair and sealing in San Antonio runs $340-$780 for a whole system, depending on whether we’re sealing accessible joints or replacing collapsed flex runs in the attic. Call (726) 600-7155 for a free estimate with a written price you can compare.
This page is for homeowners who see uneven temperatures between rooms, hear whistling from registers, or noticed their Honeywell air cleaner or ventilator working harder than it should. The problem is usually in the ductwork, not the unit itself.
How Honeywell Products Fail - and How We Fix Them
- TrueDRY dehumidifier duct collars crack at the plenum connection. The DR65 and DR90 series use a plastic collar that stiffens after years of San Antonio attic heat cycling. We replace it with a galvanized transition piece and seal with mastic rated for the temperature swing, not tape that’ll peel by August.
- Whole-home ventilators (ERV/HRV) pull flex duct flat at the intake elbow. The ERV100H and similar units need a straight run of at least 18 inches before any bend. In Alamo Heights retrofits we often find the installer squeezed the intake through a 2×4 chase. We reroute with rigid duct or a sweep elbow and support it properly so the ventilator doesn’t starve itself.
- Media air cleaner cabinets leak at the door gasket. The F100 and F200 series have a foam gasket that compresses permanently after 3-4 filter changes. Air bypasses the filter, carrying attic dust straight to the coil. We replace the gasket, check cabinet squareness, and seal any gaps with foil tape rated for HVAC use.
- Zone damper actuators bind in metal trunk lines. Honeywell’s HZ432 panel works fine, but the dampers in galvanized trunks can seize where rust forms at the shaft bearing. We free the damper, treat the shaft with anti-seize, and replace the actuator if the gears are stripped. Full damper replacement is rare; the metal frame usually outlasts the motor.
- Flex duct in tract homes near Stone Oak collapses at the takeoff. This isn’t a Honeywell defect, but their ventilators and cleaners move more air than the original flex was sized for. The increased static pressure pulls the inner liner away from the collar. We install a mechanical connection, not just a zip tie, and upsize the flex if the CFM calls for it.
Our Honeywell Duct Repair & Sealing Process
- 1
Camera inspection first. We scope every duct run from the register back to the plenum. The camera goes in first. Then we talk. You’ll see the photograph before we write a number.
- 2
Written price delivered. Haven Standard Clause 1: one flat price per system, agreed in writing before work starts. No per-vent pricing, no add-ons after we’re in the attic.
- 3
Parts decision: OEM or verified aftermarket. For Honeywell-specific components like ERV collars or damper actuators, we use OEM when the warranty is active. For universal items like flex duct or mastic, we use trade-grade equivalents you can verify: Abatement Technologies, Guardsman, or Honeywell’s own line.
- 4
Repair and seal. We repair or replace the failed component, then pressure-test the system. Sealing is done with brush-applied mastic on metal, proper mechanical connections on flex, and foil tape only where the manufacturer specifies it.
- 5
Documented photo record. Every run is photographed before and after. The images are delivered as part of your job record, dated and labeled by location.
- 6
365-Day Done Right Promise activated. Backed in writing. If it’s not right, we make it right.
BeforeAfterWhat Honeywell Duct Repair & Sealing Costs in San Antonio
| Service | Typical Range |
|---|---|
| Single register reseal (mastic, accessible) | $180-$260 |
| Flex duct replacement, one run (up to 25 ft) | $280-$420 |
| TrueDRY collar replacement with transition | $340-$480 |
| Whole-system seal (mastic + tape, accessible trunk) | $520-$680 |
| ERV/HRV intake reroute with rigid duct | $580-$780 |
What moves the price: attic accessibility, whether the duct is flex or metal, and how many takeoffs need attention. Homes built 2015-2020 in areas like Cibolo Canyons or The Dominion often have tighter attic clearances that add labor time. We price by the system, not by the vent, so a twelve-register house and a six-register house pay the same for the same scope of sealing work.
Call (726) 600-7155 for a free estimate. We’ll put the number in writing before you decide.
Why San Antonio Homeowners Call CleanRun Air Duct Cleaning San Antonio for Honeywell Work
We’ve logged thousands of hours in San Antonio attics since 2013, including tract homes near Stone Oak where flex duct collapses and dust accumulation tend to be textbook examples of what we document on every job. Our crew knows Honeywell’s product line well enough to tell you whether your ERV100H needs a collar, a reroute, or just a gasket - without guessing.
The 365-Day Done Right Promise is backed in writing on every job, not stated in marketing copy and forgotten. Our technicians are background-checked, uniformed, and identified by name before arrival - Haven Standard Clause 3: Verified Crews. We also service Lennox, Trane, and Carrier systems, so if your Honeywell component interacts with another brand’s equipment, we don’t need to call a second contractor.
Every job includes the Documented Photo Record: dated, labeled, delivered. You can verify what was done without climbing into the attic yourself.
FAQs
No, independent service does not void the manufacturer’s warranty on the equipment itself, provided the repair is done to code and uses compatible parts. We use OEM components for warranty-active systems and document the part numbers in your job record. If your TrueDRY or ERV is still under Honeywell’s original warranty, we’ll note that before ordering parts. Call (726) 600-7155 and we’ll check the install date against the coverage period.
Repair is usually sufficient when the duct is intact but leaking at joints, collars, or seams. Replacement makes sense when flex duct is torn, crushed, or delaminated inside, or when metal duct has rusted through. The camera shows the difference clearly: a leak looks like a gap or tape failure; damage looks like torn liner or holes. We’ll show you both and explain which applies to your system. Estimates are free.
Common items like F100 gaskets, DR65 collars, and HZ432 actuators are stocked by regional HVAC suppliers we buy from regularly. Less common items, like older ERV cores, may need a two-day order. We tell you before we write the price whether a part is on the van or needs to be ordered, so you’re not surprised by a return visit.
Most single-component repairs, like a TrueDRY collar or media cabinet reseal, take two to three hours. A whole-system seal on a single-story home takes four to five hours. We schedule by the job, not by the hour, so the price doesn’t change if we hit an unexpected snag. Call (726) 600-7155 for a time estimate based on your specific setup.
The $79-$129 coupons usually cover a visual inspection and tape applied to the registers you can reach from a ladder. They don’t include attic work, mastic on the plenum, or pressure testing. Our price covers the full system, photographed, with a written guarantee. If you have a competitor’s written estimate, we’ll provide a free second opinion under Haven Standard Clause 2 and put our number next to theirs.
Ready to see what’s actually happening in your ductwork? Call CleanRun Air Duct Cleaning San Antonio at (726) 600-7155 for a free estimate with a written price delivered before any work begins. We’ll bring the camera.
Written by Tomas Reyes, Owner, CleanRun Air Duct Cleaning San Antonio at CleanRun Air Duct Cleaning San Antonio, serving San Antonio and nearby areas.