Aeroseal Duct Sealing, Explained for Phoenix Homeowners

It reaches leaks a hand cannot, which matters in a flat attic buried in insulation. It does not fix disconnected runs, crushed flex or undersized returns. Which approach suits a given house depends on the leak test and a look at the ducts, not on a preference.

Signs include a room that never cools, a filter that loads within days, long runtimes and a dusty smell after monsoon storms. The only real answer is a leakage test. Our airflow testing page explains what the numbers mean.

If the ducts leak meaningfully, sealing reduces the conditioned air lost to the attic, which reduces runtime. We do not promise a figure; the savings depend on the leak rate, the attic temperature and your rate plan. The summer electric bill field note covers where the money usually goes.

Yes. A sealed duct system is a sealed duct system, and we service the equipment and ducts around it like any other. If leakage has crept back, we retest and hand-seal whatever has opened.

If the jacket is cracked and the liner is tearing, sealing buys a little time on a material that is failing everywhere at once. Sound ducts with leaky joints are worth sealing. We put both options in writing after seeing the attic, following the repair-versus-replace framework.

Sealing ducts tightens the distribution, not the house, so it does not starve the system of air. It can reveal an undersized return that leakage was quietly masking. That is why we measure static pressure before and after and address the return if needed.