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Claim This BusinessHighland Air LLC operates from Oak Park, California, delivering heating and cooling solutions to homeowners across the region. With 66 customer reviews generating a 4.9-star average rating, the company has built a steady reputation for reliable service. Owner Shai Zimon leads service calls, handling installations and repairs for residential properties throughout the local community.
What distinguishes Highland Air is the direct involvement of the owner on every job. Reviewers consistently highlight Shai's hands-on approach, he arrives on time, explains what he's doing, and ensures systems run correctly before leaving. The company handles minisplit installations, ongoing AC maintenance, and diagnostic work, with customers noting Shai often suggests troubleshooting steps over the phone to avoid unnecessary service calls. This Transparent, owner-operated model sets the company apart from larger operations where technicians rotate.
Customers share specific experiences that illustrate the company's service style. Ben Middlemas provided his own minisplit and Shai installed it with careful attention to positioning and operation. For Laura's home, Shai responded quickly to service requests over multiple years, offering honest advice about whether a full visit was needed. Michelle Carson's studio tenants use their minisplit through summer and winter extremes and report efficient performance. One 2023 review documents concerns about a system installed during a remodel, noting the owner struggled with diagnostics and accountability.
65 of 66 reviewers award 5 stars, with recurring praise for Shai's honest communication and willingness to advise by phone. Negative feedback centers on a single 2023 installation where the customer felt diagnostics and follow-through fell short.
| Sunday | Closed |
| Monday | 7 AM–5 PM |
| Tuesday | 7 AM–5 PM |
| Wednesday | 7 AM–5 PM |
| ThursdayToday | 7 AM–5 PM |
| Friday | 7 AM–5 PM |
| Saturday | 9 AM–2 PM |
Custom minisplit install with owner on-site, handling customer-supplied units or provided equipment.
Diagnostic services and tune-ups across multiple years of recurring service for existing clients.
Installation and repair of heat pump systems for year-round heating and cooling.
Technical troubleshooting, Shai identifies issues and explains findings before recommending repairs.
Same-day or quick-response calls for urgent heating and cooling failures.