When an air conditioner gives out during an LA heat wave, the first question is usually what a new one will cost. AC replacement cost in Los Angeles depends on your home, and knowing what drives the number makes AC installation and replacement quotes much easier to read.
Quick Answer: AC Replacement Cost in Los Angeles
A full central system replacement in Los Angeles, new AC and furnace together, runs about $15,000 to $20,000 with us. Your exact number comes after a load calculation and a look at your ducts and electrical. A handful of factors set the price: the size of the system your home needs, the type of equipment, its SEER2 rating, the condition of your ducts and electrical service, and the permit. And sometimes the right job is replacing a failed compressor, not the whole system.
The Biggest Factors in AC Replacement Cost in LA
Most of the gap between two quotes comes from five places, starting with your home’s layout and ductwork.
System Size
A like-for-like swap of the old tonnage isn’t always right. An AC that’s too large cycles on and off rapidly, wears components faster, and never runs long enough to dehumidify the air. One that’s too small runs constantly and may overheat. A proper load calculation sets the size.
Equipment Type
System type changes the equipment and the labor:
- Central split systems fit homes with existing ductwork and whole-house cooling needs.
- Heat pumps heat and cool from a single system, which makes them a strong option in LA’s mild climate.
- Ductless mini-splits suit older homes, additions, and properties without ductwork.
- Packaged units are common for condos and smaller homes where rooftop or ground-level installation is required.
If you’re replacing an aging furnace too, price a heat pump system at the same time, since one unit covers both jobs.
Ductwork
ENERGY STAR estimates that a typical house loses about 20 to 30 percent of the air moving through its ducts to leaks, holes, and poorly connected ducts, and the result is higher utility bills. A new AC on old, leaky ducts still pays for that loss. Depending on what the inspection finds, the quote may include sealing or new ductwork.
Electrical and Site Conditions
Our installation process includes electrical and duct compatibility checks, because a new system has to match what’s already in the house.
Permits
In the City of Los Angeles, replacing an AC unit with one of the same size and type is on the LADBS express permit list, so no plan check is required. The state’s Energy Code applies too: the California Energy Commission says split, mini-split, and packaged systems must comply with the Building Energy Efficiency Standards when they’re installed. Our installation process includes permit coordination when required.
Repair or Replace: Where Cost Tips the Decision
We’ve covered the AC replacement warning signs in another post, so this is just the money side. Replacement deserves a serious look when a single repair approaches half the cost of a new system, or when the system runs on phased-out R-22. The EPA ended production and import of R-22 (HCFC-22) in 2020, and the remaining supply is scarce and costly.
The age, warranty, and single-component tests for repairing instead of replacing are on our AC repair page. A failed compressor can go either way. We handle full compressor replacement, but a major compressor failure on an older system is also one of the cases where replacement may be recommended. If you’re not sure which side you’re on, book a diagnostic with our AC repair technicians first.
What’s Included When We Replace Your AC
Honesty is how we work, and it starts with the estimate. Replacement estimates are free and no-obligation. On installation day, our team:
- Arrives within the scheduled window
- Protects floors and landscaping
- Removes and properly disposes of the old equipment
- Installs and connects the new indoor and outdoor units
- Completes electrical and refrigerant connections
- Runs commissioning tests, including airflow, pressure and thermostat programming
- Walks you through how the system operates
You get all the documentation, including warranty registration. Every installation also goes through our three-stage quality process, ending with a review by a senior QA specialist who wasn’t involved in the project. We’re a licensed California HVAC contractor, led by two California-registered professional engineers. After the install, a maintenance plan adds annual tune-ups and priority service.
Planning Your AC Replacement Cost in Los Angeles
AC replacement cost in Los Angeles comes down to the right size, the right equipment type, the efficiency tier, the state of your ducts and wiring, and the permit. We replace residential systems across Los Angeles, Beverly Hills, Santa Monica, Culver City, Torrance, Long Beach, Manhattan Beach, Sherman Oaks, Studio City and Orange County, and we handle commercial and industrial cooling too.
When you’re ready, contact A/C Control for a free replacement estimate. If your current system needs a diagnosis first, you can schedule a service visit online.
AC Replacement Cost FAQs
Do I need a permit to replace my AC in Los Angeles?
In the City of Los Angeles, a same-size, same-type AC replacement is an express permit with no plan check.
How much should I pay up front?
CSLB says the down payment on a home improvement job should never exceed 10 percent of the contract price or $1,000, whichever is less, unless the contractor has a Blanket Performance and Payment Bond on file with CSLB.
Is it worth recharging R-22 before I replace the system?
Usually not if there’s a major leak. A major leak on an R-22 system usually ends in replacement, and recycled R-22 is scarce and costly, so get the replacement quote before you pay for a recharge.
Should I replace my AC with a heat pump instead?
Price both. A heat pump heats and cools from one system, so if your furnace is aging too, one installation can cover both jobs.

