Ductwork Repair in Bel Air: Comfort Starts with the Duct System

Bel Air's estate homes and multi-level custom builds create unique duct challenges. Ductwork often spans 60 to 100 feet from the air handler to the farthest bedroom, threading through two-story attics, crawlspaces, and unconditioned bonus rooms. Long runs amplify every small leak. A 5% leak near the unit becomes a 20% energy loss by the time conditioned air reaches the far wing. Add Bel Air's summer attic temperatures, regularly above 130°F, and those leaks force your AC to work overtime against extreme heat.

Many homes here were built in the 1950s through 1980s with flexible ductwork that has deteriorated or disconnected at fittings. Rodents, roof work, and decades of thermal cycling take a toll. We inspect the full run, seal leaks with mastic and metal-backed tape, and replace collapsed sections. For homes with zoned systems serving guest houses or lower-level suites, we verify damper function and balance airflow. Our crews know the access points, the common leak zones, and the estate layouts across Bel Air and the Upper Westside.

California's Title 24 energy code requires duct leakage testing for new installs and full replacements, and the standard is strict: less than 6% total system leakage. Most untouched duct systems we test in Bel Air fail that threshold, with leakage rates between 15% and 30%. That means up to a third of the air your system produces never reaches the room, it leaks into attics, walls, or crawlspaces. You pay to cool air that heats back up before it arrives. Sealing ducts typically cuts cooling costs by 15% to 25% and improves comfort in rooms that have always felt too warm.

We use a calibrated duct blaster to measure total leakage, then seal joints, plenums, and register boots to meet Title 24 standards. If you're replacing your AC or adding ductwork, testing is mandatory and we handle the compliance paperwork. Many local utilities and the California Energy Commission offer rebates for duct sealing when paired with system upgrades. We walk you through eligibility and submit documentation on your behalf. Written estimate before we start, no surprise charges at the end.