New-install, replacement and repair of insulated flexible duct and sheet-metal systems — Title 24 compliant, HERS-verified. CA Lic. 1037982 · Carrier Authorized Dealer.
Air Conditioning › Ductwork Installation
Ductwork is the part of your HVAC system you cannot see, and it usually fails quietly. A 30-year-old flex duct in a Tracy or Manteca attic has been baked at 130-plus degrees every summer for decades; the joints separate, the inner liner cracks, the insulation thins. The California Energy Commission estimates that leaky, uninsulated ducts can cut delivered system efficiency by 20 to 30 percent — you pay for air at the air handler that never makes it to your living room. Stockton and Lodi homes near agricultural areas pull dust through gaps in the return side that ends up coating the indoor coil and circulating through your home. Newer Tri-Valley and Mountain House construction generally has cleaner systems but still benefits from periodic inspection because builder-grade duct seals fail over time. Replacing a failed duct system, often at the same time as an AC or furnace replacement, restores delivered efficiency to design specification and noticeably evens out room-to-room comfort.
Don\'t have ductwork at all? A ductless mini-split system is almost always the better path for older Bay Area homes built without ducts.
Our ductwork process is data-driven, with measured results before and after.
AC Services Elite is a Carrier Authorized Dealer, so the equipment we install is genuine Carrier — engineered for reliability and efficiency and backed by Carrier's full manufacturer warranty. Our technicians are factory-trained on Carrier systems, which means correct sizing, correct installation, and warranty protection you cannot get from a non-authorized installer.
Central Valley housing produces some of the toughest ductwork conditions in California. Tracy, Stockton and Manteca attic temperatures regularly exceed 130 degrees in summer, which accelerates aging of flex duct, mastic, and insulation. Many homes in these cities were built with builder-grade duct systems in the 1970s through 1990s that are now well past their service life. East Contra Costa cities like Antioch, Pittsburg and Brentwood share the heat-load profile and the duct-aging story. Closer to the coast, Bay Area craftsman housing in Oakland and Berkeley was built without duct systems entirely, and we rarely retrofit ducts there — ductless mini-split heat pumps deliver better results with less invasive installation. For everything in between, modern insulated duct systems sealed to Title 24 standards perform within design specification and qualify for HERS-verified rebate programs through PG&E.
Replace failing ductwork and stop losing 30% of your bill.
(209) 268-2659Monday to Saturday, 8 AM to 8 PM · 24/7 for emergencies
Get a Free EstimateMany of the homes we service in Tracy, Stockton and Manteca have ductwork that is 25 to 50 years old — flex duct that has collapsed, joints that have separated, or insulation that has shed over decades in hot attics. A duct system that leaks 20 to 30 percent of its conditioned air wastes a substantial share of every PG&E dollar. We perform a duct inspection and pressure test as part of the diagnostic, and we recommend repairs when the system is sound and replacement when it is not. You receive a written estimate with the test results so the decision is based on data.
A typical whole-home duct replacement in a single-story Tracy or Stockton home runs one to three days, depending on attic access, register count, and whether we are reusing or relocating the main trunk line. Two-story homes and homes with crawlspace runs take longer. We sequence the work to keep your AC or heating system operational at the end of each day when possible.
We install insulated flexible ducts, rigid sheet-metal trunk lines, and fiberglass duct board where appropriate, sealed with mastic and metal-backed tape rather than the cloth tape that often fails in older systems. For Central Valley attics that hit 130+ degrees in summer, we use higher R-value insulation rated for the climate. Every install meets California Title 24 and is documented for HERS verification.
Yes, often substantially. The California Energy Commission estimates leaky and uninsulated ducts can cut delivered system efficiency by 20 to 30 percent. Replacing a failed duct system in a 1980s Tracy or Manteca home can drop summer PG&E bills meaningfully and dramatically improve airflow to rooms that have never cooled well. Real-world savings depend on the condition of the old system; we measure that during the diagnostic.
Yes. California requires a permit for duct replacement, and many cases require post-install HERS verification by a third-party rater. We pull the permit, perform the work to Title 24 standards, and coordinate the HERS test, then provide you with the documentation needed for any utility rebate.
Yes, but it is invasive in older homes without attic or crawlspace access. For Bay Area craftsman and bungalow housing in Oakland, Berkeley and similar neighborhoods, a ductless mini-split system is almost always the better path. For newer-construction homes, additions, or homes with sufficient attic space, a full duct installation paired with a Carrier system delivers strong whole-home performance.
We replace and install residential ductwork across San Joaquin, Alameda, Contra Costa, Santa Clara, San Mateo and Stanislaus counties. Find your city for local details, or call (209) 268-2659.
Reach out and our team will help you stay comfortable all year round.
