A new central AC cost in Los Angeles usually lands between about $4,000 and $8,000 for the unit and installation on a straightforward job, and it climbs from there once ductwork, a larger home, or an electrical upgrade enters the picture. That range comes from national pricing data, so treat it as a starting point for Los Angeles.
The number on your quote depends far more on your house than on the brand of the box. An attic that hits 130 degrees in August, ducts that have baked for 20 years, and a panel installed before air conditioning was standard can each move the price by thousands. Here is what actually drives it, what the permit process adds, which incentives are open right now, and how to compare quotes without getting burned.
New central AC cost in Los Angeles: the average range
According to This Old House's installation cost guide, a central air conditioner runs $4,000 to $8,000 installed on average. The same guide lists an air source heat pump at $4,500 to $8,000, and puts ductwork at roughly $1,000 to $2,700 for a 1,000 square foot system.
Size pushes the total up quickly. In that guide's tonnage table, which includes materials, ductwork and a thermostat, a 3 ton system for a 1,800 square foot home averages $8,344, while a 4 ton system for 2,500 square feet averages $12,670. Those are national figures, so treat them as a sanity check on your quote, not a prediction of it.
If you are searching for AC replacement cost in Los Angeles, the honest answer is a range, and the way to narrow it is a measured look at your house. We give free in-home estimates for installations and replacements, in writing, before any work begins.
The factors that move the price
Tonnage and load calculation
Tonnage is cooling capacity, and bigger is not better. An oversized system cools the air fast, shuts off, and never runs long enough to pull humidity out or even out the rooms. It also costs more to buy. The right size comes from a load calculation that accounts for square footage, windows, orientation, insulation and duct losses, not from matching whatever was there before.
Many Los Angeles homes have changed since the original system went in. New windows, a converted garage, or added attic insulation can lower the load enough that the old tonnage is now too big. Ask any contractor how they arrived at the size on your quote.
SEER2 rating
SEER2 is the current efficiency rating, and a higher number costs more up front. The guide above notes that lower rated units are cheaper at purchase but do not save as much on monthly cooling bills. In Los Angeles, where the cooling season runs from spring into late fall, efficiency pays back faster than in a mild coastal climate. In a house used lightly, the premium for the top tier may never return.
Ductwork condition
Ducts are the largest swing item. Many replacements can reuse existing ducts, but in older attics the duct runs are often crushed, disconnected or leaking into a 130 degree space. Sealing or replacing them adds cost, and skipping it means a new system delivers less cooling than it should. If your house never cooled evenly, the ducts are a suspect. A duct inspection tells you what you are working with before you commit.
Attic unit or rooftop package unit
A split system puts the condenser outside and the air handler in the attic or a closet. A package unit combines everything in one cabinet on the roof or beside the house. Package units suit homes with no attic space for an air handler. Roof access, crane time and a curb or platform change the price, so the same tonnage can quote very differently depending on where it has to go.
Electrical panel and wiring
A new system may need a different breaker size, a new disconnect, or a panel upgrade if the old one is full or undersized. This is a common surprise on older homes. Ask whether any electrical work is included or listed separately.
Heat pump or straight AC
A heat pump cools like an air conditioner and also heats, so it can replace both the AC and the gas furnace. Los Angeles winters are short, which makes the heat pump case stronger here than in colder regions. Upfront, the two are close: the guide above shows heat pumps at $4,500 to $8,000 against $4,000 to $8,000 for central AC. If you keep a gas furnace, a standard AC is simpler. If both are old, ask for a heat pump quote beside it. See our AC installation page for the options we install.
No ducts at all
If the home has no ductwork, or the ducts are beyond saving, a ductless mini split can be cheaper than building a duct system. Ductless costs vary widely by number of rooms, so compare it room by room.
The refrigerant change and why it matters now
New residential air conditioners are moving to A2L refrigerants, mainly R-454B and R-32, which sit under the EPA limit. The EPA's Technology Transitions table lists a global warming potential limit of 700 for residential air conditioning and heat pumps with a compliance date of January 1, 2025, and notes there is no installation compliance date for systems whose components were all made or imported before that date.
In practice, a matched new system will be built for the newer refrigerant, so ask your contractor which one your quote uses and whether the indoor coil is included. If you are weighing a repair on an aging system instead, that question belongs in the math. Our guide on AC repair versus replacement walks through it, and if you are leaning toward repair, what an AC repair costs in Los Angeles shows the other side of the comparison.
Permits, Title 24 and HERS verification
Replacing an air conditioner in California is regulated work. In most Los Angeles area jurisdictions a changeout needs a mechanical permit, and California's Title 24 energy code adds testing on top of it. For many replacements that includes duct leakage testing and refrigerant charge verification by an independent, state certified HERS rater who is not the installer.
The thresholds and which tests apply depend on what is being replaced and which edition of the code applies. California's 2025 Energy Code takes effect January 1, 2026 according to the California Energy Commission, so ask your contractor what applies to your permit date.
Here is why that matters on price. A contractor who skips the permit is cheaper on paper, but you carry the risk: no inspection, possible trouble when you sell, and a warranty the manufacturer may refuse to honor. Check that the written estimate says who pulls the permit and whether testing is included. We are a licensed HVAC contractor, CSLB #1154105, bonded and insured.
Rebates and tax credits: what is open and what is not
Incentive programs change fast, so here is what the official pages show today.
The federal Energy Efficient Home Improvement Credit: Energy Star's federal tax credit page says credits are available through December 31, 2025. A system installed now should not count on it.
TECH Clean California: its incentives page lists single-family heat pump HVAC incentives as fully reserved statewide, and single-family HEEHRA rebates as fully reserved as of February 24, 2026, with new reservations waitlisted. A waitlisted project only qualifies if the heat pump is installed after the reservation is approved.
LADWP and SoCalGas: both run efficiency programs that change by year. The amounts change often enough that any number printed here would go stale, so check their rebate pages and your utility account before you sign.
Do not let a salesperson build a quote around a rebate you cannot verify. If a program reopens, you can often apply after the fact, but only if the equipment qualifies.
How to compare quotes and finance the job
Two quotes for the same house can differ by thousands for reasons that never show up in the headline number. When you compare, line up these items.
Tonnage and the reason for it, with the load calculation or at least the method.
Exact model numbers and SEER2 ratings for the outdoor unit, the coil and the air handler.
Ductwork: reused, sealed or replaced, and whether the quote says what it will test.
Electrical work, the permit, and HERS testing: included or extra.
Warranty terms for parts and for labor.
Cheap quotes usually leave something out. A quote that is the same price as another but lists more of the above is the better quote.
We offer financing options for new system installations, so a replacement does not have to come out of a single month's budget. If you are unsure whether to replace at all, we are straightforward about it. We won't push a replacement when a repair will do.
Common questions
How much does a new central AC cost in Los Angeles?
National pricing puts a central air conditioner at roughly $4,000 to $8,000 installed on a simple job. Larger homes, ductwork repairs, rooftop package units and electrical upgrades push Los Angeles quotes higher. A free in-home estimate gives you a real number for your house.
Is a heat pump more expensive than a central AC?
The upfront prices are close. This Old House lists air source heat pumps at $4,500 to $8,000 and central AC at $4,000 to $8,000. A heat pump can also replace your furnace, which is worth pricing when both are near the end of their life.
Do I need a permit to replace my air conditioner?
In most Los Angeles area cities, yes. A changeout typically needs a mechanical permit, and California's Title 24 energy code can require duct leakage and refrigerant charge testing by an independent HERS rater. A reputable contractor pulls the permit and builds it into the written estimate.
Can I get a rebate or tax credit for a new AC in 2026?
Check each program before you count on it. Energy Star lists the federal credit as available through December 31, 2025, and TECH Clean California shows its single-family heat pump incentives as fully reserved. Utility programs from LADWP and SoCalGas change, so confirm current amounts with them directly.
Get a free in-home estimate
A real price for a new central AC starts with someone measuring your house, looking at the ducts and checking the panel. We do that for free, and you get the estimate in writing before any work begins.
Cool Breeze LA serves Los Angeles, Calabasas, Sherman Oaks, Glendale, Pasadena and Burbank. Call (310) 469-1979 or request a free in-home estimate online.