Book a service call now for a 5-star experience.If some rooms never cool down, your bills keep climbing, or your AC runs nonstop, your ductwork is often the hidden culprit. LA Heating & Air designs, installs, and replaces HVAC ducts and vents across Los Angeles and the San Fernando Valley. Leaky or undersized ducts can waste up to 30 percent of the air your system produces, so we size, seal, and route the ducts properly the first time. Your $99 service call is waived when you approve the work.
Call (818) 660-1062 for available same-day service.
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Your ductwork is the delivery system for every bit of heated and cooled air in your home. When ducts leak, sag, or are the wrong size, comfort and efficiency drop fast.
Most homeowners never see their ducts, so problems hide in the attic or crawlspace for years while bills climb. Here is when new duct installation or replacement makes sense.
Here are the signs Los Angeles homeowners should watch for:
Across Los Angeles, many homes still run original ductwork from the 1960s to 80s that has pulled apart at the seams. New, properly sealed ducts often do more for comfort than a bigger AC.
Whether you need a full new duct system or targeted fixes, we handle the whole job and explain your options clearly.
New duct installation - For new construction, room additions, or ADUs, we design and install a complete duct system sized to the space.
Duct replacement - We tear out failing, leaky, or undersized ducts and replace them with properly sized, sealed runs.
Duct sealing and repair - We seal leaks at joints and connections and repair crushed or disconnected sections to restore airflow.
Vent and register installation - We add, move, or replace supply and return vents so each room gets the airflow it needs.
Return air and zoning - We add return air capacity and zoning so the system breathes properly and balances temperatures between rooms.
We do not just hang ducts. We design the system, seal it, and verify airflow so it actually performs.
Design and load calculation - We measure your home and run the numbers so the ducts are sized for real airflow, not guesswork.
Install and seal - We route the ducts cleanly, connect and seal every joint with mastic, and insulate runs in unconditioned spaces.
Balance and test - We set the registers, check static pressure and airflow at each room, and confirm the system is balanced before we leave.
We install the right duct type for your home and budget, and we tell you what we would put in our own house.
Insulated flex duct - Cost-effective and flexible for attics and tight runs. Properly supported and sealed, it performs well and installs cleanly.
Sheet metal duct - Durable rigid metal trunks and runs for long-lasting airflow, ideal for main lines and exposed installs.
Ductboard and lined duct - Rigid insulated board that quiets airflow and insulates in one step, a good fit for certain layouts.
Registers and grilles - We finish the job with clean supply registers and return grilles matched to your rooms and airflow needs.
Ductwork pricing depends on the size of your home, how much duct is involved, and how easy the attic or crawlspace is to access.
Most duct repairs and sealing jobs run a few hundred dollars. A partial duct replacement is typically $1,500 to $4,000, and a full new or replacement duct system for a home usually runs $3,000 to $7,500 depending on size and complexity.
Sealing leaks and adding return air are often the highest-value fixes. They can lower your bills and even out room temperatures without replacing the whole system.
Older Los Angeles homes with cramped attics or dated materials can add labor, and we will flag that up front before any work starts.
Our $99 service call is waived when you approve the installation, so the diagnostic does not stack on top of the job.
You get a firm flat price before any work begins. No surprises, and no pressure.
New ducts and sealing can also improve the value of a heat pump or AC upgrade, since a tighter system performs better and may qualify for larger rebates. We will point you to the current programs.
Add it up and properly sized, sealed ductwork is one of the best comfort and efficiency investments you can make, often more impactful than simply buying a bigger AC.