When Van Nuys residents need duct repair, LC Heating & Air delivers same-day service backed by 20+ years of working in the LA market. Van Nuys is the geographic and commercial heart of the San Fernando Valley, home to the Van Nuys Courthouse, the Valley's main government center, and a mix of residential neighborhoods that range from well-maintained single-family blocks to dense apartment corridors along major boulevards. The 91401, 91405, and 91411 zip codes encompass one of the Valley's most diverse housing markets, and LC Heating & Air services all of them. That local knowledge means our technicians arrive knowing what equipment and access challenges to expect — cutting diagnostic time and getting repairs done faster.
### The Hidden Cost of Leaky Ducts in LA Homes The Department of Energy estimates that typical residential duct systems lose 20–30% of conditioned air through leaks before it reaches the living space. In Los Angeles, where AC runs heavily from May through October, that means you're paying to cool your attic rather than your living room every summer. Duct repair is one of the highest-return HVAC improvements a Los Angeles homeowner can make — and it directly addresses the most common cause of comfort complaints (uneven temperatures, rooms that are always too hot or too cold).
Overview
### Signs Your Ducts Need Repair Most homeowners have no idea their ducts are leaking because the leaks are hidden in attics, crawl spaces, and wall cavities. We identify duct problems through a combination of airflow measurements (comparing what the equipment produces to what each room receives), duct pressurization testing, and visual inspection of accessible duct sections. Common damage we find: disconnected duct sections at joints and take-offs, torn flex duct inner liners, crushed flex duct from attic access foot traffic, failed mastic at supply plenums, and deteriorated tape joints on older sheet metal ductwork.
### Repair Methods Duct repair methods depend on the type of damage and duct material. Disconnected flex duct sections are reconnected and sealed with mastic and foil tape. Torn inner liners require section replacement. Sheet metal joints are sealed with mastic. For systems with widespread small leaks throughout the distribution system, Aeroseal duct sealing (an internal pressurized sealing process) can address leaks that aren't accessible for manual repair.
### Before and After Documentation We document duct leakage before and after repair using duct blaster testing — a pressurization test that quantifies total duct leakage as a percentage of system airflow. This gives you measurable proof that the work improved your system's performance.
Local HVAC Challenges
Van Nuys has a high proportion of multi-family buildings — apartment complexes and duplexes — where HVAC systems serve multiple units and maintenance has often been deferred. We frequently encounter systems that are 20+ years old, running on R-22 refrigerant that is no longer manufactured, with ductwork that has never been sealed or cleaned. For landlords and property managers, we provide building-wide assessments that prioritize the most impactful upgrades and spread costs across a practical timeline.
Neighborhood Context
Van Nuys' mix of single-family homes and rental properties creates a wide range of HVAC needs. For homeowners, we provide the same thorough service and honest recommendations we deliver everywhere. For rental property owners, we understand the balance between investment in equipment and return through reduced tenant complaints and lower utility costs. We stock parts for the most common residential equipment found in Valley apartments and can often complete repairs in a single visit.
Why Choose Us
Call (323) 970-3113 for same-day duct repair in Van Nuys. We answer 24/7 — emergencies and scheduled appointments alike. Licensed, insured, CSLB #1073586.
Our duct repair process in Van Nuys
What Van Nuys customers say about duct repair
Verified reviews from homeowners in Van Nuys and nearby neighborhoods who used our duct repair service.
“Sunday evening, 95 degrees, AC completely dead. LC answered immediately and had a tech here in 90 minutes. Got us cooling again that night. Wouldn't go with anyone else.”
“AC wouldn't turn on at all. LC came same morning, found a tripped high-pressure safety switch due to dirty condenser coils. Cleaned the coils, reset the switch, tested everything. Done in 90 minutes.”
“Our AC stopped working during a heat wave and LC had a technician here within two hours. He diagnosed a bad capacitor, had the part on his truck, and fixed it on the spot. Fair price, no upsell. Will use again.”