Duct Sealing in Frisco - Tested First, Written Price Second

Fast, Reliable Duct Sealing Across Frisco

Duct sealing in Frisco typically runs $450 – $1,200 for a whole-house system, and most jobs are scheduled within a few business days. If your upstairs rooms stay hot while your downstairs freezes, or your energy bills spike every summer, separated or leaking ductwork is likely the cause. Call Hollis Air Duct Cleaning at (361) 326-5060 for a free written estimate before any work starts.

Call (361) 326-5060

We serve Frisco from our Dallas-Fort Worth dispatch office, with crews who know the local housing stock. From Stonebriar to Newman Village to the newer builds along the Dallas North Tollway, we’ve sealed ducts in the tight attics and two-story layouts that define this market. Frisco’s clay soil and nonstop summer cooling loads create problems that out-of-town crews miss. We don’t.

Why Hollis Air Duct Cleaning Is Frisco’s Preferred Duct Sealing Company

Hollis has been part of the Garrison Partners family since 2004. That track record predates most competitors in the Dallas-Fort Worth market, and it matters because duct sealing done wrong fails fast in North Texas attics. Our Duct Sealing in Frisco work is backed by the 365-Day Done Right Promise: if the seal fails or airflow drops within a year, we return and make it right at no charge, including a free second visit.

Our technicians are background-checked, uniformed, and expected to follow The Garrison Code on every job: arrive inside the quoted window, price in writing before touching anything, complete the work by the book, and leave the site clean. No estimates that balloon once we’re inside. No callbacks that go to voicemail. Phones are answered by a live person 24 hours a day, 7 days a week.

Frisco homeowners aren’t shopping for the cheapest bid. They’re shopping for the bid they can trust. We give one flat price per system, agreed before work starts. No per-vent pricing. No add-ons at the door. And we show before-and-after photos of your own ducts so you see what was done.

Air Duct Sealing in Frisco

Air Duct Sealing in Frisco means finding and closing every leak in your supply and return ductwork, then verifying the fix with a pressure test. In this market, that often starts with repair work. Frisco’s explosive growth has produced thousands of homes under 20 years old where builders used flexible ductwork that becomes kinked, crushed, and dust-clogged. Because of tight roof trusses and the need to maintain static pressure in high-performance modern systems, cleaning often requires re-routing and re-sealing attic runs, not just vacuuming.

Our Duct Sealing process begins with a camera inspection of accessible ductwork. We locate crushed runs, separated joints, and gaps where mastic has dried or tape has failed. Then we clean before we seal. Trapping construction dust and debris inside sealed ducts is a common shortcut that later clogs your air handler and blower motor. We don’t do it.

When Frisco Homes Need Sealing, Not Just Cleaning

If your HVAC runs constantly but can’t hold temperature, or certain rooms never cool evenly, leaks are pulling conditioned air into your attic. In Frisco’s two-story homes with long flex runs, this is almost always a joint separation or crush point, not dirty registers. We fix the structure first, then seal.

What the Job Actually Involves

We apply duct sealing mastic, a thick paste that hardens into a permanent bond, reinforced with mesh tape at joints. For flex duct connections, we use mechanical fasteners plus mastic, never tape alone. North Texas attic heat destroys tape within a season. We also test static pressure before and after to prove airflow improved.

Duct Sealing Services in Frisco

Duct Sealing Services in Frisco cover the full repair-and-seal workflow: inspection, source removal cleaning, joint repair, re-routing of crushed runs, mastic application, and post-job pressure verification. A typical whole-house sealing in Frisco runs $450 – $1,200 depending on accessibility, the extent of damage, and whether re-routing is needed. We agree to one flat price per system before any work starts.

Our crews carry professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, plus filtration products from Honeywell, Aprilaire, and Guardsman. These are the same tools commercial crews use, not hardware-store gear. For Frisco’s newer homes with high-efficiency systems, maintaining correct static pressure is critical. A sealed duct with the wrong diameter or too many turns can choke airflow as badly as a leak.

Re-Routing and Re-Sealing Attic Runs

Because Frisco sits on the Blackland Prairie with expansive clay soils, foundation movement is common. Our tech was called to a two-story home in the Newman Village neighborhood where the upstairs supply registers had weak airflow and the system seemed to run constantly. Using a camera inspection, we found a crushed flex duct run in the attic, likely from foundation shift, plus several separated joints. We re-routed and sealed the damaged run with mastic and mesh, then performed source removal with negative pressure and HEPA filtration to clean the entire supply and return ducts. The homeowner immediately noticed stronger airflow and quieter operation.

Why We Clean Before We Seal

Sealing dirty ducts traps years of dust, pollen, and construction debris inside. In Frisco, where new developments kick up constant particulate, this buildup is significant. Trapped debris eventually breaks loose and clogs your air handler, blower motor, and evaporator coil. Our negative-air method pulls debris out under controlled suction before any sealant goes on.

Trusted Brands We Service in Frisco

Hollis stocks duct sealing materials and filtration products from Aprilaire, Abatement Technologies, and Guardsman, with parts available for fast turnaround on Frisco jobs. We don’t order mastic or mesh after we arrive. Our vans carry what we need for same-visit completion on most sealing and re-routing work. For homeowners near the Frisco Star or along Preston Road, that means no waiting on parts while your attic sits open. We also source Honeywell and Aprilaire filtration upgrades when sealing reveals your system needs better particle control. Every material spec is written on your estimate before work begins.

Common Duct Sealing Problems We See in Frisco Homes

• Crushed flex duct from foundation shift. Frisco’s clay soil expands and contracts with moisture, stressing slab and pier foundations. We’ve found attic duct runs separated at joints or flattened where piers have settled, especially in the 75034 and 75035 zip codes. These require re-routing before sealing can restore airflow.
• Tape failures in attic heat. Builders and handymen often seal flex duct with foil tape that dries and peels within one North Texas summer. We remove failed tape entirely and replace it with mastic and mechanical fasteners that survive 140-degree attic temperatures.
• Hidden separations behind tight truss bracing. Frisco’s newer two-story homes use engineered roof trusses with minimal clearance. Some crews seal only the joints they can reach, leaving leaks that waste conditioned air. Our camera inspection finds these hidden gaps before we quote the job.
• Sealing without cleaning first. This is the most expensive shortcut. Trapped construction dust, common in Frisco’s ongoing new development, hardens inside sealed ducts and later destroys blower motors. We always clean with negative pressure and HEPA filtration before applying sealant.

Pricing for Duct Sealing in Frisco, TX

We Also Serve Cities Near Frisco

Hollis crews regularly travel to Prosper, Aubrey, Little Elm, and Celina for duct sealing and repair work. These communities share Frisco’s clay soil challenges and newer housing stock, and our Dallas-Fort Worth dispatch coordinates scheduling across all four. If you’re outside Frisco city limits but in the surrounding area, the same flat-price guarantee and 365-Day Done Right Promise apply.

FAQs About Duct Sealing in Frisco