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.
Honeywell Duct Sealing & Repair: The Fort Worth Owner’s Guide
If you have a Honeywell duct sealing system or a Honeywell-compatible duct component that’s failed, we stock and install the replacement parts Fort Worth homeowners need, with most sealing and repair jobs running between $180 and $450 installed. We can usually match your part the same day you call, because our trucks carry the Honeywell-compatible gaskets, mastic, UL181 foil tapes, and register boots that handle Texas attic heat without failing. Most owners discover the problem the same way: a whistling sound behind a wall, a dusty room that never seems to cool, or a register that’s blowing weak air while the rest of the house feels fine.

Morton’s Air Duct Cleaning is an independent service provider. We’re not affiliated with Honeywell, but we install and repair their duct sealing products alongside parts from Lennox, Trane, and Carrier every week across Fort Worth. The difference is we tell you the flat price before the work starts, and we back it with our 365-Day Done Right Promise.
Which Honeywell Models This Applies To
Most Honeywell duct sealing work in Fort Worth falls into two buckets. First, the Honeywell TrueZONE system dampers and bypass components that manage airflow between rooms. Second, the Honeywell UV and air quality systems that mount into your ductwork, along with the sealing collars, gaskets, and boots those units require. If you have a TrueZONE panel with rectangular dampers, the round damper models (like the ZD series) are a common failure point, and we replace those on a regular basis.
To match your part, look for the model sticker on the motor housing or the damper face. TrueZONE dampers are labeled with a ZD prefix plus a size code that tells you the duct diameter, usually 6 to 16 inches. If the sticker is gone, measure the duct opening itself, not the damper frame, because the frame is always larger than the air path. For TrueZONE systems, OEM Honeywell parts are worth the extra cost when it comes to the zone panel itself, since aftermarket control boards often misread the static pressure sensor. For the mechanical dampers and sealing collars, we use OEM or factory-equivalent parts from our suppliers, and either way the price is on the table before we touch the duct.
Styles & brands we work with




Signs Your Honeywell Duct Sealing or Damper Is Failing
- One room is always hot while the rest of the house is fine. This usually means the TrueZONE damper for that zone is stuck closed or the sealing gasket around the damper has hardened and cracked. We see this often in older Fort Worth ranch homes where the dampers were installed in the attic and have baked in the heat for a decade.
- You hear a rattling or tapping in the ductwork when the system turns on. A failing damper motor will chatter as it tries to open or close, and a stripped gear inside the actuator makes a distinct clicking sound. The noise usually comes from the wall or ceiling nearest the register.
- The air smells musty in one room only. Failed sealing around a duct boot lets attic air, dust, and sometimes pest droppings get pulled into the air stream. In Fort Worth, attics can reach 140°F in August, and that superheated air mixing with conditioned air also creates condensation. A musty smell from one register is a classic sign that the seal has broken and the duct is pulling attic air.
- Your energy bill is climbing without a change in usage. A stuck-open damper or a failed seal around a register boot means conditioned air is leaking into the attic. The system works harder to hold temperature, and the bill creeps up month over month.
- The system makes a whooshing or banging sound when the AC kicks on. A bypass damper with a failed spring or weight assembly slams open and closed with the pressure change. In two-story Fort Worth homes, this is often the bypass between the upstairs and downstairs zones.
Replacement Cost & What’s Included
Here’s what Honeywell duct sealing and damper repair typically costs in Fort Worth, fully installed:
| Service | Typical Installed Price |
|---|---|
| Single damper motor replacement (TrueZONE ZD series) | $180 – $260 |
| Damper and motor assembly replacement | $220 – $320 |
| Duct sealing package (register boots, joints, and plenum, per system) | $280 – $450 |
| TrueZONE panel diagnosis and repair (no part replacement) | $120 – $180 |
The range comes down to access, part type, and how much sealing material the job needs. A damper in a wide-open attic is faster than a damper buried behind a knee wall in a second-story playroom. Labor and materials are combined into one flat price per system or per damper, and you’ll see that price in writing before any work starts. Paul Adeyemi established this way of quoting back when he first started cleaning ducts out of a van after trade school, and it’s how Morton’s Air Duct Cleaning has operated in Fort Worth ever since. If the part fails within a year, we’re back to replace it under the 365-Day Done Right Promise, no argument.

See the difference
Before
After
Before
After
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AfterDIY or Call Us?
You can safely do two things yourself: write down the model number from the zone panel and the damper sticker, and check whether the damper moves freely by watching it through the register when the system cycles. That’s about it. The dangerous part of Honeywell TrueZONE repair is the wiring and the actuator spring. The motors run on 24V AC, which by itself is low voltage, but the control panel is wired into your furnace board, and a wrong connection can short the board and leave you without AC in a Fort Worth August. If you suspect a stuck damper, don’t force the blade by hand. The actuator has a spring-loaded return that can snap back. Call (682) 432-0424, and we’ll look at it the same visit and quote a firm price before anything is replaced.
FAQs
In Fort Worth’s climate, TrueZONE dampers typically last 8 to 12 years before the motor or the sealing gasket fails. The heat in an unventilated attic is the main killer. Newer Fort Worth builds with conditioned or spray-foamed attics tend to get a few extra years out of the same parts, but here in Texas, 10 years is a good run. If your system is older than that and showing symptoms, we recommend replacing the damper motor and gasket in one visit. Call (682) 432-0424 for an exact quote, and we’ll match the right part before we schedule anything.
Sometimes the sealing gasket can be replaced and the damper blade cleaned up without a full motor swap, but if the motor is chattering or the gears are stripped, repair is a temporary fix at best. We’ll tell you honestly which route makes sense for your system, because the wrong call means another service visit three months later. Either way, you’ll see the written price before we start.
Most single-damper replacements take 60 to 90 minutes from the second the crew walks in with shoe covers on. A full duct sealing package across the whole system runs 2 to 4 hours depending on the house and attic access. We plan the work around your schedule, including nap hours if you have a little one at home, and the crew uses quieter tools where it matters.
Yes. Our Fort Worth trucks carry the common TrueZONE damper sizes, replacement gaskets, mastic, and UL181 foil tape, plus compatible parts for Lennox, Trane, and Carrier systems. If we don’t have your exact size on the first visit, we source it and come back, but we’ll know which one you need before we arrive because we ask for the model information when you call. A live person answers 24 hours a day.
Call Morton’s Air Duct Fort Worth for Honeywell Duct Sealing & Repair
If your Honeywell TrueZONE damper is rattling, a room won’t cool, or you think the ducts are leaking into the attic, call (682) 432-0424. You’ll get a live person on the phone, a firm written quote before any work begins, and a crew that puts down drop cloths and wears shoe covers from the moment they step inside. We’ll send you photos of the clean-up before we leave, and the 365-Day Done Right Promise covers the work. That last part is how Paul runs things around here: I tell you what I’ll do, and then I do exactly that – nothing more on the invoice, nothing less in the work.
Written by Paul Adeyemi, Owner, Morton’s Air Duct Fort Worth at Mortons Air Duct Fort Worth, serving Fort Worth and nearby areas.