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
AfterTrusted Duct Repair & Sealing for Fort Worth Homeowners
Fort Worth Duct Repair & Sealing typically costs $280-$890 depending on the scope, with most single-room repairs completed in under three hours and whole-system sealing jobs taking a full day. Since 2013, CleanRun Air Duct Cleaning Fort Worth has repaired and sealed ductwork in more than 52,000 homes across Tarrant County, every job starting with a written price before any panel comes off and ending with a documented photo record of every duct run. Call (817) 520-8797 for a free estimate with no obligation to book.
Fort Worth’s clay-heavy soils and wide temperature swings, from 20°F winter mornings to 105°F summer afternoons, put unusual stress on residential duct systems. The expansion and contraction cycles loosen joints in metal trunk lines, crack mastic seals in attic runs, and collapse flexible duct in crawl spaces, particularly in neighborhoods like Wedgwood, Tanglewood, and the older ranch homes near Camp Bowie Boulevard where original ductwork often dates to the 1970s and 1980s. We’ve photographed separated plenum connections in Benbrook that were blowing 30% of conditioned air into attic insulation, and we’ve found flex duct in Saginaw so deteriorated that the inner liner had peeled away entirely, leaving only the fiberglass shell. These are not rare cases. In our experience, roughly 40% of Fort Worth homes built before 2005 have duct leakage above 20%, the threshold where energy waste becomes measurable on monthly bills.
Our approach is straightforward: we inspect with a camera, show you what we found, quote a written price, and document every repair with before-and-after photos. No $79 coupon that balloons to $800. No verbal estimates that change when the technician is already in your attic. Haven Standard Clause 1 requires the written price. Haven Standard Clause 6 requires the photo record. Tomas Reyes established this practice in 2013 and it has not changed.
What Our Duct Repair & Sealing Service Includes
Duct Sealing
Duct sealing closes the gaps, cracks, and disconnected joints that allow conditioned air to escape before reaching your rooms. In Fort Worth, we most often seal supply plenums that have pulled away from air handlers in attic installations, a problem accelerated by our region’s thermal cycling. CleanRun uses mastic sealant and metal-backed tape rated for high-temperature applications, not the cheap foil tape that degrades in Texas attics within two summers. Every sealed joint is photographed before and after, and the customer receives those images as part of the standard job record.
Flex Duct Repair
Flex duct, the insulated flexible tubing common in residential construction since the 1990s, collapses, tears, or separates at its connection collars over time. In older subdivisions like those off McCart Avenue or in the Berkeley Place area, our Duct Repair & Sealing - Haltom City crews have also handled similar cases nearby, and here in Fort Worth we’ve replaced flex duct runs that squirrels had chewed through and repaired others where the support strap had failed, causing a 20-foot run to sag and collect condensation. CleanRun installs new flex duct with proper slope and support spacing per manufacturer specifications, typically using Nikro equipment for debris extraction before the new run goes in.
Metal Duct Repair
Galvanized steel ductwork, found in homes built before 1990 and in many commercial conversions, rusts at seams and can separate at drive cleats. Fort Worth’s humidity spikes in spring and fall create condensation inside uninsulated metal runs, particularly in pier-and-beam homes with crawl space ductwork. We cut out corroded sections, fabricate replacement pieces on-site, and seal with high-temperature mastic. For metal repairs in historic districts like Fairmount or Ryan Place, where original ductwork may be embedded in plaster or tight framing, we use Rotobrush camera systems to inspect before cutting access.
Duct Insulation
Insulation around ductwork degrades, gets torn by rodents, or was never adequate for our climate to begin with. In Fort Worth, R-6 insulation is the current code minimum for attic ductwork, but many homes still have R-4 or uninsulated metal runs that sweat profusely in July. CleanRun replaces damaged insulation with formaldehyde-free fiberglass wrap or closed-cell foam insulation depending on the application, and we photograph the full length of every insulated run so you can verify complete coverage. Proper insulation in a Fort Worth attic can reduce cooling load by 15-20% according to Department of Energy modeling for our climate zone.
Mastic Sealant Application
Mastic is a thick, fiber-reinforced paste that remains flexible after curing, making it superior to tape for sealing duct joints that experience vibration or thermal movement. We apply mastic with a brush or caulking gun to all longitudinal seams, transverse joints, and register boots, then allow proper cure time before pressurizing the system. In Fort Worth’s new construction market, we’ve found that even recently built homes in Walsh, Mira Vista, and Viridian often have duct leakage of 12-18% because builders relied on tape alone, a problem our North Richland Hills Duct Repair & Sealing teams see across the region as well. Our mastic application typically reduces leakage to below 5%.
Air Leak Repair
Air leaks in duct systems show up as hot rooms, excessive dust, or utility bills that spike without explanation. We locate leaks using a combination of blower door testing and theatrical smoke, then repair each source methodically. In one 2019-built home in Keller, we traced a 22% leakage rate to a single disconnected return duct in the attic that the builder’s crew had never secured. The homeowner had been cooling their attic for three years. After repair and verification testing, their August electric bill dropped $87. We documented the entire process with photos and written test results, delivered as part of the job record.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Signs You Need Duct Repair & Sealing Right Now
- Uneven temperatures from room to room. If your master bedroom in Fort Worth runs 8 degrees warmer than the hallway in July, the duct delivering air to that room is likely leaking, blocked, or undersized. This is not a thermostat problem and cannot be fixed by closing vents elsewhere in the house.
- Dust accumulation around registers despite regular filter changes. When return ducts pull air from attic or crawl space through gaps in the duct wall, they draw in fiberglass particles, soil, and insect debris. The camera often shows a dark ring of filtration staining on the ceiling around the register, a telltale sign we’ve documented in hundreds of Fort Worth homes.
- Utility bills that rise without corresponding rate increases or usage changes. A duct system leaking 25% of its air forces your HVAC equipment to run longer to achieve the thermostat setpoint. In Fort Worth’s summer peak, that extra runtime translates directly to kilowatt hours. We’ve seen $40-$120 monthly increases directly attributable to duct leakage that homeowners had tolerated for years.
- Whistling, rattling, or whooshing sounds when the system runs. These noises indicate high-velocity air escaping through a gap, a collapsed internal liner flapping in the airflow, or a disconnected duct banging against framing. The specific sound helps us diagnose the failure before we enter the attic, and we explain what we expect to find before we inspect.
- Musty or chemical odors when the HVAC first cycles on. Leaky return ducts in musty crawl spaces or hot attics pull in odors that distribute throughout the house. In Fort Worth’s older neighborhoods with pier-and-beam construction, like parts of Arlington Heights and Westcliff, this is particularly common. Sealing the return path eliminates the odor source; masking it with air fresheners does not.
BeforeAfterOur Duct Repair & Sealing Process - Step by Step
- 1
System inspection with video documentation. We access your attic, crawl space, or mechanical closet and feed a camera through every accessible duct run. The video feed is displayed on a tablet so you can see what we see: separated joints, collapsed flex, rust holes, or insulation damage. This inspection is included in every estimate and produces the first half of your before-and-after photo record.
- 2
Leakage testing and written scope. Where accessible, we perform a pressure test to quantify total duct leakage as a percentage of system airflow. We then write a specific scope of work: which runs will be sealed, which will be replaced, what materials will be used, and the flat price for the complete job. Haven Standard Clause 1 requires this written price before any work begins. You approve it, or you pay nothing and we leave.
- 3
Repair and sealing execution. Our technicians, background-checked and uniformed per Haven Standard Clause 3, execute the approved scope using professional-grade equipment. Metal repairs are fabricated on-site. Flex duct is supported at proper intervals. Mastic is applied to specified thickness and allowed to cure. We do not rush this step; a proper mastic cure in a 140°F Fort Worth attic requires patience.
- 4
Post-repair verification and photo documentation. After work is complete, we re-inspect every modified run with the camera and photograph each repair from multiple angles. These images, combined with the pre-repair footage, constitute your Documented Photo Record, delivered as a standard deliverable on every job since 2013.
- 5
Written warranty and final documentation. We provide a written invoice with the flat price paid, the scope completed, the test results if applicable, and the 365-Day Done Right Promise. If any sealed joint fails, any repaired run separates, or any workmanship defect appears within one year, we return and correct it at no charge. This is a written guarantee, not a policy subject to manager approval.
How Much Does Duct Repair & Sealing Cost in Fort Worth?
See our guide on how much Duct Repair & Sealing costs: for a typical single-system Fort Worth home, mastic sealing of accessible joints and register boots runs $450-$780. Flex duct replacement, when a run has collapsed or been damaged, costs $180-$340 per run depending on length and access difficulty. Metal duct repair, including fabrication and sealing, typically falls between $280-$520 per section. Whole-system duct sealing with aerosolized sealant, appropriate for homes with extensive leakage throughout inaccessible ductwork, ranges from $1,200-$2,400 depending on system size and pre-test leakage rates.
Several factors move these numbers. Attic access is the largest variable; a walk-up attic with decking allows faster work than a scuttle hole over a closet with blown insulation that must be moved. The age and condition of existing ductwork matters because older systems often reveal additional problems once work begins, though our written price covers the approved scope regardless of what we find. The number of HVAC zones increases complexity and material cost. And the specific repair method, whether hand-sealing with mastic or aerosol injection, affects both price and expected leakage reduction.
To avoid overpaying, reject any quote that charges per vent or per linear foot without a capped total. These pricing structures incentivize technicians to find more problems. CleanRun quotes one flat price per system for the agreed scope, period. We also offer a Free Second Opinion on any written estimate from another company; bring us their scope and price, and we’ll put ours next to it in writing with no obligation. Estimates from CleanRun are free and include the camera inspection.
Duct Repair & Sealing Near Fort Worth - Our Service Area
CleanRun serves homeowners throughout Tarrant County and adjacent communities, with particular concentration in Duct Repair & Sealing in Fort Worth, Duct Repair & Sealing in Haltom City, and Duct Repair & Sealing in Lake Worth. We also regularly work in Saginaw, Richland Hills, Watauga, North Richland Hills, Benbrook, Keller, Bedford, Colleyville, and Arlington. Most Fort Worth metro appointments are scheduled within three business days, with written confirmation sent by text and email including the technician’s name and photo per Haven Standard Clause 3. Emergency repairs for complete duct separation or collapsed runs affecting system operation are prioritized same-day when possible.
Serving Fort Worth, TX - Our Local Coverage Area
We’re based in the Fort Worth area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Duct Repair & Sealing in Fort Worth
Duct repair and sealing fixes the physical structure of your duct system, closing leaks, replacing damaged sections, and restoring proper airflow, while duct cleaning removes accumulated debris from inside intact ducts. A duct can be perfectly clean and still leak 30% of its air into your attic, which is why we often recommend sealing before or alongside cleaning for Fort Worth homes with older systems.
Most single-room repairs or localized sealing jobs take two to four hours, while whole-system sealing or multiple flex duct replacements require a full day. We provide a time estimate in writing with the price quote, and we do not charge extra if the job runs longer than expected. Call (817) 520-8797 for an exact quote and time estimate for your specific system.
Typical costs range from $280 for a simple flex duct repair to $2,400 for whole-system aerosol sealing, with most Fort Worth homeowners paying between $450-$780 for standard mastic sealing of accessible joints. The exact price depends on system size, access difficulty, and the specific repairs needed, which is why we inspect with a camera and provide a written flat price before any work begins.
Yes. We regularly repair and seal ductwork connected to Honeywell air cleaners, Aprilaire humidifiers, and all major HVAC equipment brands. Our technicians are trained on the duct integration requirements for these accessories, and we use Guardsman and Rotobrush equipment where appropriate for debris extraction and camera inspection. Whether your system is Honeywell, Aprilaire, or any other make, we can assess and repair the ductwork serving it.
We prioritize calls involving complete duct separation, collapsed runs, or other failures that prevent system operation, and we answer calls with live personnel 24 hours a day. While duct repair is typically a scheduled service, we will dispatch for true emergencies when same-day resolution is possible. Call (817) 520-8797 to describe the situation and we’ll give you an honest assessment of timing.
Every repair and sealing job is backed by the 365-Day Done Right Promise in writing: if the work is not right, we make it right at no additional charge. This covers sealed joints that reopen, repaired runs that fail, and any workmanship defect. The warranty is not subject to manager approval; it is a written guarantee delivered with every invoice.
Clear access to your attic scuttle, crawl space entry, or mechanical closet, and ensure pets are secured away from work areas. You do not need to move furniture or cover belongings; our technicians use drop cloths and containment as needed. We recommend having your most recent electric bill available if you’ve noticed usage spikes, as this helps us correlate symptoms with likely leakage points.
Schedule Your Duct Repair & Sealing Service in Fort Worth Today
Call (817) 520-8797 to speak with a live person and schedule your free estimate. You’ll receive a written flat price before any work begins, a camera inspection of every duct run, and a Documented Photo Record of all work performed, backed by our 365-Day Done Right Promise. No coupons, no surprises, no per-vent pricing. Just documented results you can verify.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Fort Worth, serving Fort Worth since 2013.