Air Duct Repair & Sealing in Cerritos, CA

When we pressure-test ductwork in Cerritos, the leaks are almost never where the homeowner guessed. They are at the plenum seams, at the register boots, and at the joints nobody could see — including in newer homes near Cerritos Towne Center that were never sealed properly at the build. Cerritos is a meticulously planned 1970s city of larger tract and custom homes around Towne Center and the Auto Square, with a lot of two-story plans running zoned or dual systems. Mild coastal humidity is gentle on the equipment, but the long duct runs needed to reach upstairs bedrooms are where the performance quietly disappears — and the secondary system in a two-zone house tends to go years without anyone looking at it.

What we run into in Cerritos is shaped by long two-story trunk runs where the upstairs zone loses most of its airflow, and secondary systems that go unserviced for years. So the work starts with a diagnostic rather than a guess — we walk the accessible runs, check static pressure and airflow at the registers, and find where the loss actually is instead of sealing whatever is easy to reach. Repairs get made with mastic and fiberglass mesh, never tape, which fails fast in an attic this hot.

Attic temperatures across Cerritos are the reason tape repairs do not last. Homes in Shadow Park and Cerritos Towne Center and the Auto Square area routinely show us three or four generations of failed tape on the same joint, each applied by somebody who assumed the last attempt was the problem.

We quote in writing, document the work with before and after photos, and leave the site cleaner than we found it. That is the whole promise, and it applies to every job we take in Cerritos. Call (562) 521-8478 to schedule.