Air Conditioning Santa Monica: Install Costs for Central and Mini Split

Air conditioning Santa Monica homeowners price comes down to one of two jobs: a central split system on ducts you already have, or a ductless mini split where there are no ducts. Each has its own price range, and the right one depends on your house. Ask for the written install quote here and we will price the one that fits. Our AC installation work begins with the building as it stands, not a template.

What a central install costs

A typical 3-ton split system install in a Santa Monica home with existing ducts runs between $7,500 and $12,000 depending on duct repair, electrical panel upgrades (common in older panels rated below 200 amps), and permit fees.

Homes needing a full duct retrofit land closer to $14,000 to $18,000.

Those are the two figures for a central system. Where you land inside them depends on the duct condition, the electrical panel and the permit work, and we find those out at the visit, not after.

What a mini split costs

Single-zone systems typically run between $3,500 and $5,800 installed in Santa Monica, depending on line-set length and electrical requirements.

Multi-zone setups that connect two or three indoor heads to one outdoor unit range from $11,500 to $23,500.

If your home never had ducts, or a room addition sits outside the duct system, a ductless mini split can avoid the retrofit entirely. We tell you which route is cheaper for your layout.

What the install visit looks like

We start at the building. For a central system we look at the existing ducts, the electrical panel and where the air handler and condenser would sit. For a mini split we walk the rooms you want cooled and plan the line-set route between the outdoor unit and each indoor head.

Then we write the quote. It names the equipment, the duct or electrical work, the permit fees and the install labor as separate lines. You read it at your own pace and decide. If your home falls inside a historic overlay district, we plan around its placement rules before we put a price on paper, so the number does not change later for a reason we should have seen.

Choosing between ducts and no ducts

Your situation	What we price
Existing ducts in working shape	Central split system
Ducts that leak or are undersized	Duct repair first, then the split system
No ducts anywhere in the house	Full duct retrofit, or a mini split
One room, an addition or a detached space	Single-zone mini split
Several rooms without ducts	Multi-zone mini split

If the ducts are the weak point, our ductwork services cover repair before the new unit goes in. A new condenser on leaking ducts does not fix the leaks.

What sets your number

• Duct repair or a retrofit, if the existing runs are not sound.
• The electrical panel, since an older panel may need an upgrade.
• Permit fees. Replacing AC or ductwork in California is permitted work, and Santa Monica's building and safety division issues the permit.
• Line-set length on a mini split, from the outdoor unit to the indoor head.
• Equipment choice, including corrosion-resistant options for coastal homes.

Title 24 can also require duct sealing and a duct leakage test, verified by a third-party HERS rater who is not the installer, depending on the scope. We list that in the quote when it applies.

Salt air and placement

Standard AC parts corrode fast in the salt air near the water, so we offer corrosion-resistant equipment options and protection for the outdoor unit. Parts of Ocean Park and the Pico Neighborhood fall under historic overlay rules that restrict where outdoor equipment can go, and the city has noise-limit requirements. We plan placement around those before we quote.

New residential split systems since 1 Jan 2025 are made with lower-GWP A2L refrigerants such as R-454B or R-32, and we quote the equipment that is available to install today.

Replacing versus repairing

If your current AC still runs and the fault is small, ask for the repair price as well. Repair callers are welcome here. We price the fix, and when replacement makes sense we put the install number next to it so you can see both. Our AC repair crews run the same diagnosis before anyone talks about a new unit.

Where we install

We install across Santa Monica and nearby, including Venice and Brentwood. Post-install performance verification is part of the job, and the quote is written before work starts.

Frequently asked questions

How much does a central AC install cost in Santa Monica?

A typical 3-ton split system install in a Santa Monica home with existing ducts runs between $7,500 and $12,000 depending on duct repair, electrical panel upgrades, and permit fees. A full duct retrofit lands closer to $14,000 to $18,000.

Can I get AC without ducts?

Yes. A ductless mini split cools a room or several rooms with no ductwork. Single-zone systems run $3,500 to $5,800 installed, and multi-zone setups run $11,500 to $23,500.

Do I need a permit?

Replacing an AC in California is permitted work. Santa Monica's building and safety division issues it, and permit fees are part of your quote.

Will my electrical panel need work?

It can. An older panel rated below 200 amps may need an upgrade, and we check it at the visit so it is in the written quote.

Can you install in a building with several units?

Yes. We schedule access for multi-unit buildings, and a multi-zone mini split can serve more than one space from a single outdoor unit.

Call to book

Call (877) 409-5247 and Santa Monica AirCon Repair will schedule your air conditioning visit in Santa Monica.