Whole-home duct cleaning
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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.
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AfterHow Much Does Duct Repair & Sealing Cost in Fort Worth?
Duct repair and sealing in Fort Worth typically runs $350 to $1,850, with most homeowners paying between $550 and $1,100 for a complete inspection plus targeted sealing and repair on a standard 1,800 to 2,400 square foot home. If you’re looking at full duct replacement rather than repair, that number climbs to $3,000 to $7,000 depending on home size and duct accessibility. The single biggest cost driver is how much of your ductwork is accessible versus hidden behind finished walls or in tight attic spaces that are common in older Fort Worth neighborhoods like Fairmount and Ridglea Hills.
Before you call around for quotes, here’s what actually moves the needle on price in Tarrant County: whether it’s mastic sealing versus full replacement, how many linear feet of duct need attention, and whether your plenum boxes need rebuild work. Call (817) 730-6759 and we’ll give you a written price before a single panel comes off.
Duct Repair & Sealing Cost Breakdown (2026)
Here’s a straight answer for the Fort Worth market, based on what we see week in and week out across neighborhoods like Arlington Heights, Meadowbrook, and the Alliance corridor:
| Service | Typical Fort Worth Price | What’s Included |
|---|---|---|
| Duct inspection & diagnostic | $75 – $150 (often waived with repair) | Camera or visual inspection of accessible duct runs, leak detection, airflow measurement |
| Targeted duct sealing (small leaks) | $200 – $450 | Mastic sealing of 2-4 visible joint leaks, foil tape reinforcement at boots |
| Whole-home duct sealing | $600 – $1,200 | Mastic application at accessible joints, registers, and plenum connections for a ~2,000 sq ft home |
| Duct repair (single section) | $150 – $400 per section | Replacing crushed, disconnected, or torn flex duct or sheet metal section |
| Plenum box repair or rebuild | $300 – $800 | Rebuilding or resealing supply/return plenum connections at the air handler |
| Full duct replacement | $3,000 – $7,000 | Complete removal and installation of new flex or rigid duct for a 1,800-2,400 sq ft home |
| Duct sealing + insulation wrap | $900 – $2,400 | Sealing all accessible joints plus adding R-6 or R-8 insulation around duct runs |
These numbers reflect the 2026 Fort Worth market, where attic ductwork in single-story ranch homes tends to be easier (read: cheaper) to access than the vertical chases and second-story runs common in newer builds near Chisholm Trail Parkway or the Walsh development.
Note on materials: Fort Worth homes built pre-1990 often have sheet metal ducts that benefit from mastic sealing, while newer homes use flex duct that sometimes needs section replacement rather than repair. Flex duct is cheaper to replace per linear foot but more prone to tears from attic heat and rodent activity, both of which we deal with frequently in Tarrant County.
If you’re comparing quotes, ask the company what sealing method they use. Mastic applied with a brush is the gold standard because it cures into a hard, permanent shell. Foil tape alone fails within a few seasons in uninsulated Fort Worth attics where summer temperatures can exceed 140°F. At Cardinal Air Duct Fort Worth, we write the method into your quote so you know exactly what you’re paying for before we start.
What Affects Duct Repair & Sealing Pricing in Fort Worth
Every house is different, and the spread between a $350 job and a $1,850 job comes down to a handful of real factors. Here’s what actually moves your quote:
- Accessibility. Ductwork in an open attic or basement crawl is quick to reach. Ducts buried behind finished ceilings or wedged into tight joist bays (we see this constantly in older Camp Bowie-area homes) take more labor hours and can double the cost of a simple seal job.
- Number of leaking joints. Sealing two visible boot connections is cheap. Sealing twenty joints across a sprawling ranch in Wedgwood or Candleridge takes a full crew day and proportionally more material.
- Duct material. Sheet metal ducts respond beautifully to mastic sealing and rarely need replacement. Flex duct gets brittle in North Texas heat cycles and often tears at the collar connections, requiring section replacement rather than just resealing.
- Home size and duct length. A 1,400 sq ft home in Haltom City may have 300 linear feet of duct. A 3,200 sq ft home in Mira Vista could have 700+. More duct equals more joints, more potential leaks, and more time.
- Plenum condition. The supply and return plenums where ducts meet the air handler are high-pressure zones. If they’ve separated or rusted, the repair is more involved than a simple duct seal. In humid Fort Worth spring seasons, rusted plenums in ventilated attics are a common culprit.
- Airflow rebalancing. After sealing, some homes need register adjustments or damper tuning to restore balanced airflow room to room. That’s an extra service line some companies skip, but it matters if one bedroom has always run hot.
One more local factor that most national guides miss: Fort Worth sits in a climate zone that puts real stress on duct sealants. Mastic provides better long-term performance than tape in our extreme attic temperature swings, and the low-quality seal jobs tend to fail within two summers. That’s why our written guarantee covers every repair for a full year, and if a seal fails, we come back and redo it at no charge. No invoice games, no fine print.
How to Save on Duct Repair & Sealing
There are right ways and wrong ways to trim the bill on duct work. The right ways preserve your system and your indoor air quality. The wrong ways just push the problem six months down the road. Here’s what we tell our Fort Worth customers:
- Bundle sealing with a duct cleaning. If your ducts need to be cleaned anyway (and in Fort Worth, with our pollen-heavy spring and construction dust, many do), doing sealing in the same visit saves on the second trip charge. You’re already paying for technician time and equipment setup.
- Target the leaks you can prove. A diagnostic inspection that identifies the specific leaking joints can bring a quote down from whole-home sealing to targeted work. Some homes really only have 3-4 problem areas. Ask for camera documentation.
- Check for rebates. Oncor and TXU Energy occasionally run efficiency rebate programs that include duct sealing. Eligibility changes year to year, but it’s worth a five-minute search before you commit. We’ll note any active programs when we provide your estimate.
- Address plenum issues early. A small plenum separation that costs $300 to reseal will, if ignored, stress the blower motor and eventually become a $1,500 repair. Catch it at the inspection stage.
- Avoid the cheapest quote without understanding why. If one Fort Worth contractor quotes $180 for whole-home sealing and another quotes $950, the difference is almost always materials and method. Foil tape in a 140°F attic is not the same product as brush-applied mastic. Ask what sealant they use and whether it’s included in the written scope.
We give free estimates, and the number we write down is the number you pay. No pressure, no add-ons at the door. Call (817) 730-6759 and get a real price this week.
Is Duct Sealing Worth It in Fort Worth?
Short answer: if your energy bills spike in July and August, yes. Studies from the Department of Energy consistently show that leaky ducts waste 20 to 30 percent of the air your HVAC system produces. In a Fort Worth summer, that’s money literally leaving through your attic. The question isn’t whether to seal, it’s how much of the system needs it. A $500 targeted seal job on a badly leaking plenum can pay for itself in two Texas summers.
FAQs – Duct Repair & Sealing Cost
How much does duct sealing cost per linear foot in Fort Worth?
Duct sealing in Fort Worth typically runs $4 to $8 per linear foot for accessible ductwork using brush-applied mastic, including labor and materials. A standard 300-linear-foot home falls in the $1,200 to $2,400 range for whole-home sealing, though targeted repairs on 20 to 40 linear feet can run $200 to $400 total. Call (817) 730-6759 for an exact quote on your duct layout, and you’ll get a written price before any work starts.
Is it cheaper to repair or replace ductwork?
Repair is nearly always cheaper. Sealing and section repair runs $350 to $1,850, while full duct replacement in a typical Fort Worth home costs $3,000 to $7,000. Replacement only makes sense when ducts are severely crushed, contaminated with mold, or beyond the reach of targeted repairs. We’ll show you photo proof either way so you’re making a decision based on what’s actually in your attic, not what a salesperson says is in your attic.
Can you repair ducts the same day in Fort Worth?
Yes, and we offer 24/7 scheduling because a torn duct in July isn’t something you want to sleep on. Most targeted repairs and small sealing jobs are same-day once we’ve inspected the system. Call (817) 730-6759 and a live person answers, day or night, no phone tree.
How much does it cost to fix one leaking duct in a Fort Worth attic?
A single leaking duct section or boot connection runs $150 to $400 depending on whether it’s a simple reseal or a section replacement. If the leak is at the plenum connection, expect $300 to $500 because that joint carries higher static pressure and needs a more durable seal. Most single-leak visits clock in under $400 total.
Does homeowners insurance cover duct repair in Fort Worth?
Sometimes. If the duct damage comes from a covered peril like a roof leak, fire, or a fallen tree, your policy may kick in. Wear and tear, age, and rodent damage are almost never covered. We provide documentation of the damage and cause, which helps if you’re filing a claim. Most Fort Worth homeowners handle duct sealing out of pocket because it falls under maintenance.
What’s included in a duct sealing quote from Cardinal Air Duct Fort Worth?
Every quote includes the inspection findings, the specific joints or sections we’ll seal or replace, the sealant method and brand (we use commercial-grade mastic, not foil tape), the linear footage, and a written price that does not change. You’ll also get before-and-after photos of the work, and every repair carries a written guarantee for a full 365 days. If the seal fails, we return and fix it free. That’s the 365-Day Done Right Promise, and it applies to every job we do.
Why Fort Worth Homeowners Trust Cardinal Air Duct for Duct Repair
We’re part of the Relay Home Co. family, founded in 2005, and we operate under the Relay Visibility Guarantee. That’s not a marketing slogan. It means when you book with us, you receive a live trackable arrival time, before-and-after photo documentation of the actual work in your actual ducts, and a digital invoice you can pay from your phone. You’ll know the technician’s name before they arrive, because our techs are background-checked and arrive in uniform with professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies. No shop-vac shortcuts, no mystery pricing, no four-hour windows.
Omar Haddad leads our Fort Worth operation, and the standard he holds us to is simple: every customer gets a written price before work begins, a written guarantee on every repair, and a free second visit if anything isn’t done right within 365 days. That’s it. That’s the whole promise.
Get Your Free Duct Repair Estimate in Fort Worth
You’re welcome to keep comparing quotes, but if you want a straight number and a straight answer, call us. We pick up 24/7. The estimate is free, the price is written before any work starts, and the work is backed for a full year. Call (817) 730-6759 and ask for Omar’s team. We’ll get your ducts sealed, your air flowing, and your energy bill headed back down where it belongs.
Written by Omar Haddad, Owner at Cardinal Air Duct Fort Worth, serving Fort Worth since 2005. This guide reflects 2026 pricing in the Tarrant County market and is updated regularly. For your exact written quote, call (817) 730-6759.
What Our Customers Say
"Rebooked in a tap for next year. Simple. Reminder text goes out when it is time again, so I do not have to track it."
- Lee F."Booked a slot in the app, got a reminder text, and watched the crew's van on the map as it came. Cleaned all the vents and the main trunk. Easy from start to finish."
- Rob J."Paid by text link and got a receipt right away. Hassle free."
- Nina P.