How much does a mini-split installation cost?

Every mini-split quote is a written line item proposal, priced per zone, with equipment listed separately from labor so you can see where the money goes. Zone count, head placement, and line set routing move the number, which is why we price after a site visit. You approve the proposal before any work starts, and the invoice matches it. Every install carries a three-year labor warranty on top of the manufacturer's warranty on the new equipment.

What brands do you install?

Mitsubishi, Daikin, LG, Fujitsu, Carrier, and Mr. Cool. Mitsubishi and Daikin are our most-installed brands for Bay Area homes because of cold-climate performance and parts availability.

Are mini-splits a good fit for Eichlers and ductless homes?

Yes. Eichlers and other mid-century Bay Area homes without existing ducts are the classic mini-split use case. We have installed them in Mohr-Martin, Vintage Hills, the Dublin Camp Parks builds, and Eichler tracts across the East Bay.

Indoor heads at low fan: about 22 to 28 dB, quieter than a refrigerator. Outdoor compressors are slightly louder than a window unit but much quieter than a traditional condenser.

Do mini-splits qualify for rebates?

Heat-pump mini-splits (which are most of them) qualify for the same BayREN, PG&E, and BAAQMD programs as ducted heat pumps. See the heat pump installation page for the rebate map.

Ductless Mini-Split Installation Bay Area

Ductless Mini-Split.

Eichlers without ducts. ADUs without HVAC. That one room that runs 10 degrees hot every afternoon. Ductless mini-splits solve the problems central systems cannot, with per-room temperature control and quiet inverter operation.

Onzone installs single-zone and multi-zone mini-splits across the Bay Area, from one stubborn room to a whole home to a new addition, and we work with every major brand: Mitsubishi, Daikin, LG, Fujitsu. The proposal is written per zone, so you can add or drop a room and see exactly what changes.

Problems we fix every day.

No Ductwork Available

Eichlers, ADUs, garage conversions, and additions share one problem: nowhere to run ducts. A mini-split heats and cools the space without opening a single wall.

Uneven Room Temperatures

There is always one bedroom, office, or bonus room the central system never quite reaches. A dedicated indoor head serves that room directly instead of asking the main system to stretch.

ADU Comfort Planning

A new backyard unit needs its own comfort plan: a single-zone or multi-zone mini-split sized for the space and installed ready for inspection, so it works year round.

Addition Needs Zoning

Tying new living space into the existing system usually overloads it. A dedicated indoor head or zone keeps the addition comfortable without dragging down the rest of the house.

Mateo Johnson June 2026

We recently had OnZone Heating & Air install a Cooper&Hunter heat pump for us, and the entire experience was excellent from start to finish. The installation team was prompt, friendly, and professional. They took the time to explain everything they planned to do and made sure we were comfortable with their approach before getting started. Throughout the installation, they were communicative, respectful of our home, and clearly took pride in their work. The system has been performing great so far. It's much quieter than I expected, and the cooling function has been extremely efficient. We'll have to wait until winter to fully test the heating side, but based on our experience so far, I have high expectations.

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Mauricio Hernandez June 2026

Had a Cooper&Hunter wall mount installed. 10/10 Service! Onzone was extremely professional, clean, and quick. Install was very affordable and equipment works great.

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Daniil Chapovskyi June 2026

I recently had a new AC and heat pump system installed by Onzone, and I couldn't be happier with the entire experience. From the initial consultation to the final inspection, the team was professional, knowledgeable, and consistently on time. They clearly explained every step of the process, answered all of my questions, and made what could have been a complicated project feel straightforward and stress-free. One thing that really stood out was how respectful they were of my home. The crew kept the work area exceptionally clean throughout the installation and left everything spotless when the job was complete. Their attention to detail was impressive. Onzone also guided me through the permit process from start to finish and made sure everything was done correctly. They coordinated all the necessary inspections and ensured the system successfully passed the HERS test, giving me confidence that the installation met all required standards. Most importantly, the quality of the installation exceeded my expectations. The finished system looks great, operates flawlessly, and performs even better than I imagined. It's clear that they take pride in their work and focus on doing the job right. I highly recommend Onzone to anyone considering an AC or heat pump installation. Professional, reliable, detail-oriented, and truly committed to customer satisfaction.

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Ductless Mini-Split.