Ductless Mini-Splits in Berkeley & the East Bay
Installation and repair for ductless mini-split systems across Berkeley and the East Bay — efficient heating and cooling for homes without ductwork, room additions, and converted spaces. CSLB #1146520.
Ductless Mini-Split Installation & Repair
Aarvaks installs and repairs ductless mini-split systems throughout Berkeley and the East Bay. Carrier, Bosch, and Mitsubishi installations. All brands repaired.
Ductless Mini-Split Installation
Single-zone and multi-zone systems for homes without ductwork, room additions, and converted spaces. We assess your space, zone needs, and electrical capacity before recommending a system. Installation starts at $6,500 for a single zone.
Ductless Mini-Split Repair
System not heating or cooling, an error code on the display, ice on the outdoor unit, or water dripping from the indoor unit — we diagnose and repair all ductless mini-split brands. $79 residential diagnostic, waived if we do the repair.
Ductless Mini-Split Systems We Install
Aarvaks is a Carrier Authorized Dealer. We also install Mitsubishi and Bosch ductless mini-splits — selected based on your space, line set routing, and efficiency goals.
Carrier Ductless Systems
As a Carrier Authorized Dealer, we install the full Carrier ductless mini-split lineup — single-zone and multi-zone configurations with inverter-driven compressors for precise, quiet operation. Factory-backed warranty applied at installation. Single-zone systems start at $6,500.
Mitsubishi Electric
The market-leading ductless mini-split brand. Mitsubishi’s H2i Hyper-Heating models deliver full heating capacity down to 13°F — far below anything Berkeley experiences. Kumo Cloud WiFi control. Available in wall-mount, ceiling cassette, and floor-mounted configurations for rooms where wall mounting is not possible.
Bosch Climate Series
Inverter-driven variable-speed compressors for precise temperature control and quiet operation. Bosch ductless mini-splits offer strong cold-weather heating performance and high efficiency ratings — well suited for East Bay homes and room additions where consistent low-level output outperforms on/off systems.
Signs Your Ductless Mini-Split Needs Attention
Catching problems early prevents full system failures and extends equipment life.
- Error code on the indoor unit display — the system has flagged a fault; note the code before scheduling service
- Running but not heating or cooling — often low refrigerant from a flare fitting leak, a restricted coil, or a stuck reversing valve
- Water dripping from the indoor unit — a clogged condensate drain or failed pump; shut the system off and call before water reaches the wall or flooring
- Ice on the outdoor unit in winter — signals a defrost system failure and degraded heating output
- Rattling noise or weak airflow — a fouled blower wheel, a leading cause of reduced performance on wall-mounted units
- One zone not responding — on a multi-zone system, a single dead zone often points to a communication wire or indoor unit fault
- System over 15 years old with frequent repairs — a candidate for replacement
- No heating or cooling at all — call 510-848-5010 to schedule a diagnostic
Nearly a Century of East Bay HVAC Service
Aarvaks has been in Berkeley since 1929. Owner Jason Hanson built his career at one of the East Bay’s most respected HVAC companies before acquiring Aarvaks in 2025, and brought his top technicians with him. Four of six technicians hold EPA 608 Universal certification. All installations include a 10-year limited parts warranty and 3-year labor warranty.
97
Years serving
Berkeley and the East Bay
4.9★
Average Google rating
BBB Accredited
10yr
Limited parts warranty
3yr labor, 5yr with maintenance plan
What Ductless Mini-Split Service Costs
No surprise fees. We quote before we work. Diagnostic fee waived if we do the repair.
$6,500
Ductless Mini-Split Installation Starting
Single zone, residential
$17,000
Central Heat Pump Installation Starting
Single zone, central
$79
Residential Diagnostic
Waived if we do the repair
Ductless mini-split installation starts at $6,500 for a single-zone system. Multi-zone systems are priced based on zone count, indoor unit type, and line set routing. Commercial diagnostic is $189. Financing available.
What Customers Say About Aarvaks
★★★★★
“Aarvaks recently installed a Carrier heat pump unit and air handler and by far this has been one of the most professional and best experiences I’ve received from a top HVAC company. From the office to the install team everything was on point and I couldn’t have been any more impressed. Thanks to Jason the CEO and his Aarvaks team my home is so much more comfortable with my new heat pump system and I highly recommend Aarvaks for any HVAC needs.”
★★★★★
“Very happy with the quality of service over the last decade+. So when it came time to replace our old A/C and gas furnace with a new and efficient heat pump, we naturally went with Aarvaks and have not been disappointed by their professionalism and quality of work. This is an expensive investment in our home, something I wouldn’t go with just anybody on.”
★★★★★
“Wonderful estimate visit, three alternative plans, expert heat pump installation service, completed early, and great office contact/billing experience. House is super comfy & quiet now!”
Ductless Mini-Split Service Across the East Bay
Serving residential and commercial customers throughout Alameda and Contra Costa counties.
Not sure if we cover your area? Call 510-848-5010.
Frequently Asked Questions
How much does a ductless mini-split cost in Berkeley?
Ductless mini-split installation at Aarvaks starts at $6,500 for a single-zone system. Multi-zone systems — where one outdoor unit powers two to five indoor units — are priced based on zone count, indoor unit type, and line set routing. We provide a written quote before any work begins. Full details on our ductless mini-split installation page, or call 510-848-5010.
What’s the difference between a single-zone and multi-zone ductless mini-split?
A single-zone system pairs one outdoor unit with one indoor unit — it heats and cools one room or open space. A multi-zone system connects one outdoor unit to two, three, four, or five indoor units in separate rooms, each with independent temperature control. Multi-zone is the right choice for whole-home comfort without ductwork. Single-zone is right for one room, a room addition, a converted garage, or an ADU. We recommend the configuration based on your floor plan during the estimate visit.
Are there tax credits or rebates for ductless mini-splits in Berkeley?
Not the federal tax credit. The Section 25C credit, 30% of the cost up to $2,000 for a qualifying heat pump, covered improvements made through December 31, 2025, so it does not apply to systems installed in 2026. Local utility rebate rules vary by program, and we identify which apply to your system during the estimate process. See current East Bay rebates.
How much does ductless mini-split repair cost?
The $79 residential diagnostic covers a full system inspection and a written repair recommendation with itemized pricing, and is waived if we do the repair. The total repair cost depends on the component — a capacitor or communication wire replacement costs significantly less than a reversing valve or compressor. You see the exact cost before approving any work. The commercial diagnostic fee is $189. More on our ductless mini-split repair page, or call 510-848-5010.
Can any HVAC technician repair my ductless mini-split?
Any licensed HVAC contractor can repair your ductless mini-split regardless of who installed it — you are never locked into the original installer. Aarvaks services all residential and commercial ductless mini-split brands, including Carrier, Bosch, Mitsubishi, Daikin, Fujitsu, LG, Samsung, and Lennox. CSLB #1146520.
How do I know if my ductless mini-split needs repair or replacement?
If the repair cost approaches or exceeds half the cost of a comparable new system, replacement is usually the better investment — particularly on a system over 15 years old. A compressor failure on an aging unit is often the decision point. We give you both figures — repair cost and replacement cost — so you can decide without pressure. Ductless mini-split installation starts at $6,500 for a single-zone system.
Ready to Schedule Ductless Mini-Split Service?
Mon–Fri 8 am–4:30 pm for scheduled installation and repair. Serving Berkeley and the East Bay since 1929.