Airflow Tested, Not Guessed

Ductwork Repair & Sealing in East Texas

A leaking duct system dumps the air you already paid to cool into a 140° attic. We measure the loss, repair and seal the runs, and show you the before-and-after numbers. Serving Canton, Edgewood and Van Zandt County since 1993.

Signs Your Ductwork Is the Problem

Most of the comfort complaints we get in older East Texas homes trace back to the duct system, not the equipment. These are the patterns worth having measured.

One Room Never Cools

A back bedroom that runs five to eight degrees warmer than the thermostat usually has a crushed flex run, a duct that came apart at the boot, or a branch that was never sized for that room. Adding a bigger unit does not fix a run that is not delivering air.

High Bills With a Healthy System

If the equipment tests in spec but runtime is long, the air is going somewhere else. Leaky attic ductwork dumps conditioned air into a 140° attic and pulls the same volume back in through gaps, so the system pays twice for every cycle.

Humidity, Dust and Musty Smells

Return-side leaks pull attic and crawl-space air — insulation fibers, dust, and humidity — straight into the system. That is the usual cause of a house that feels clammy at 74° and of filters that load up in weeks instead of months.

Weak Airflow at the Registers

Undersized returns, kinked flex, and collapsed liner all raise static pressure. High static shortens blower life, freezes evaporator coils, and makes a correctly charged system behave like a failing one.

How We Repair and Seal a Duct System

Four steps, in this order. Nothing gets sealed before we know what the system is actually doing.

Measure First

We take total external static pressure, temperature split, and room-by-room airflow before proposing anything. Those numbers tell us whether the problem is the duct system, the equipment, or the design.

Inspect the Runs

A physical walk of the attic or crawl space: disconnected boots, torn flex, failed mastic joints, sagging runs holding water, missing insulation, and returns that were never large enough for the tonnage installed.

Repair and Seal

Reconnect and support runs, replace damaged flex, seal plenums, boots, and joints with mastic and mesh rather than tape alone, and re-insulate to spec. Tape dries out in an East Texas attic; mastic does not.

Verify the Fix

We re-measure static pressure and register airflow after the work and show you the before-and-after readings. If the numbers did not move, the work is not finished.

Ductwork Repair & Sealing in Edgewood, TX (75117)

Edgewood sits in northern Van Zandt County off I-20 along Highway 80, and much of the housing here is older farmhouses and country property along FM 2965 and FM 859. On those homes the duct system almost always runs through an unconditioned attic or a crawl space, and a good share of it was installed decades ago with cloth or foil tape at the joints.

That tape is usually the failure point we find. It dries, curls off the collar, and leaves an open joint blowing conditioned air into the attic. We see the same pattern in add-on rooms, where a branch was tapped off an existing trunk that never had the capacity for another register — the room stays warm no matter how low the thermostat goes.

Sealing that work with mastic and re-insulating the runs is consistently the cheapest meaningful comfort upgrade on an Edgewood house, and it is the first thing we recommend before anyone spends money on larger equipment. Edgewood is roughly 28 miles from our Eustace shop, so same-day inspections are normal here.

See all HVAC services we provide in Edgewood, TX

Duct Sealing in Canton, TX (75103)

Canton is the Van Zandt County seat on I-20, and the building stock splits between historic in-town houses and rural acreage. In the older in-town homes we frequently find ductwork that was retrofitted into a house built long before central air, with undersized returns and long runs squeezed through tight chases — a combination that pushes static pressure well past what the blower was designed for.

On the commercial side, the shops, restaurants, and rental properties around the First Monday Trade Days grounds carry heavy cooling loads on event weekends. Leaking or undersized duct on a rooftop unit shows up there as a building that cannot hold temperature with a crowd inside, and the fix is almost always on the distribution side rather than the equipment.

Canton is about 18 miles from our Eustace base, which puts us on site in under 35 minutes on most calls. We can schedule duct work in the quiet week between events so it does not interrupt a trade weekend.

See all HVAC services we provide in Canton, TX

What Duct Work Will Not Fix

Sealing a duct system recovers air you are losing. It does not restore a failing compressor, a low refrigerant charge, or a unit that is simply worn out. If our readings point at the equipment instead of the distribution, we say so and price that work instead.

Book an AC tune-up and airflow check Diagnose an AC not blowing cold air Improve indoor air quality and filtration

Get Your Ductwork Inspected

Tell us your city and which rooms are giving you trouble and we will quote the inspection flat-rate up front. Prefer to talk it through? Call (903) 479-3015.

Ductwork Repair & Sealing FAQ

How do I know if my ductwork is leaking?+

The common signs are rooms that never reach the thermostat setting, electric bills that climb while the equipment tests fine, dust that returns days after cleaning, and a house that feels humid even when it is cool. A static pressure reading and an attic inspection confirm it — you do not have to guess.

How much does duct sealing cost in East Texas?+

We quote duct repair and sealing flat-rate and up front after the inspection, so the invoice matches the number you approved. Cost depends on how much of the system needs work: a handful of disconnected boots is a short visit, while a full attic system with failed flex and undersized returns is a bigger job. Call (903) 479-3015 and we will walk you through what drives the price.

Is duct sealing worth it, or should I just replace the ducts?+

If the runs are intact and correctly sized, sealing and re-insulating is the better value by a wide margin. Replacement makes sense when the flex is brittle and torn throughout, when runs are badly undersized for the equipment, or when the layout itself is the problem. We tell you which case you are in and price both.

How long does duct repair take?+

Targeted repairs — reconnecting boots, sealing a plenum, replacing a damaged run — are usually a same-day visit. Sealing and re-insulating a whole attic duct system typically takes one to two days depending on access and the size of the house.

Should I seal my ducts before replacing my AC?+

Yes, or at minimum have them measured first. Sizing new equipment to a leaking duct system locks in the waste and often leads to an oversized unit that short-cycles and never dehumidifies properly. Fixing the duct side first frequently lowers the tonnage you need.

Do you repair ductwork in Edgewood and Canton?+

Yes. Canton is about 18 miles from our Eustace shop and Edgewood is about 28 miles up Highway 80. We run Van Zandt County routes daily, so duct inspections and repairs in both towns are routine scheduling rather than a special trip.

Will sealing my ducts help with allergies and dust?+

It helps with the source rather than the symptom. Sealing the return side stops the system from pulling attic and crawl-space air into your living space, which is where most of the dust and humidity comes from. Pair it with correct filtration and the difference is noticeable.