Stop Losing Conditioned Air Through Hidden Leaks

Aeroseal Duct Sealing in Hereford for rooms that never reach the right temperature

Deaf Smith Comfort Air performs Aeroseal duct sealing in Hereford for homes and businesses where conditioned air is escaping long before it reaches the rooms that need it. The problem is rarely the thermostat or the equipment—it is the duct system itself, where cracks, holes, and disconnected joints allow treated air to bleed out into attics, wall cavities, and crawlspaces instead of flowing into living spaces. A single persistently warm bedroom in summer or a back office that never quite heats evenly in winter is a reliable sign that the ducts connecting those spaces are leaking.

Aeroseal works by pressurizing the duct system and introducing a water-based polymer mist that travels through the air stream. As the mist reaches a leak point, the polymer particles accumulate at the edges of the gap and bond together, sealing the breach from the inside without requiring walls or ceilings to be opened. This approach reaches joints and cracks that no technician could access through conventional methods, and the process generates a diagnostic report that documents leak levels before and after the seal is complete.



Arrange an on-site evaluation to measure current duct leakage and identify which zones in your property are receiving the least airflow.

The sealing process begins with a pre-test that pressurizes your duct system and calculates exactly how much air is escaping and where. That baseline measurement drives everything that follows. Sealant registers and vent openings are temporarily blocked so the polymer mist circulates only through the duct interior, building up at leak sites rather than escaping into rooms. The result is a sealed system verified by a second pressure test that shows the reduction in leakage as a measurable figure, not an estimate.

After Aeroseal is complete, rooms that previously ran several degrees warmer or cooler than the thermostat setting begin tracking much closer to the target temperature. Deaf Smith Comfort Air clients frequently notice that their system cycles less frequently once the duct losses are eliminated—more of each running cycle's output is reaching conditioned space rather than dissipating into unconditioned areas. The before-and-after report gives you a documented record of what changed and by how much.



Research consistently shows that a typical residential duct system loses between 20 and 30 percent of its conditioned air through leaks. In a single-story home with a long duct run to a back bedroom, that loss is concentrated at the far end of the system, which is exactly why distant rooms are the first to show temperature problems. Aeroseal addresses those losses at every point along the run, not just at accessible joints near the air handler.

Answers About How the Work Is Done

Property owners in Hereford often have detailed questions about what the Aeroseal process involves before scheduling—particularly how a system sealed from the inside compares to conventional duct tape or mastic repairs applied from outside.

What does the pre-test measurement actually tell you about your duct system?

The pre-test pressurizes the ducts to a known level and calculates the total volume of air escaping per minute. That figure tells you the percentage of your system's capacity being lost before it ever reaches a register, which is the number Aeroseal is specifically designed to reduce.

How does the polymer sealant reach leaks inside walls and attic runs?

The sealant particles travel suspended in the airstream and only bond when they contact an edge—the boundary of a crack or gap where airflow is disrupted. Leaks inside enclosed wall cavities and attic chases are sealed through this process without any demolition or access cutting.

Why does duct sealing matter more for homes with longer duct runs?

In properties where the air handler is centrally located but supply runs extend to rooms at the far end of the structure, every leak along the run reduces static pressure, so the farthest registers receive the weakest airflow. Sealing the full run restores balanced delivery across all zones.

What should you check in the finished work to confirm the seal held?

The post-process report generated by the Aeroseal equipment shows the before and after leakage rates as measured values. You can compare those numbers directly and verify the reduction without relying on a visual inspection of areas that were never accessible to begin with.

How does the condition of older ductwork in Hereford-area properties affect the sealing process?

Many homes in the Texas Panhandle were built with flexible duct systems or sheet metal runs that have accumulated decades of joint separation and liner deterioration. Aeroseal is effective in both material types, though heavily deteriorated flex duct with large physical disconnections may require mechanical repair before the sealing process begins.

Contact Deaf Smith Comfort Air to review your current duct performance and determine whether Aeroseal is the right fit for your home or commercial property in Hereford.