Controlled Air Systems Inc.

Controlled Air Systems Inc. has operated as a family-owned HVAC contractor in San Jose since 2008, delivering heating, cooling, and ventilation solutions across the Bay Area from Gilroy to San Francisco, including Santa Clara, Contra Costa, and Alameda counties. The company holds a strong reputation with 57 client reviews averaging a 4.9-star rating, reflecting consistent delivery of installation and repair services. Technicians Josh and Justin regularly appear in customer feedback for their diagnostic precision and transparent communication about repair options and costs.

What distinguishes Controlled Air Systems from typical HVAC contractors is their commitment to installing every system at or above industry standards, with a satisfaction guarantee that the job remains unfinished until the customer is fully content. The company addresses rising energy costs by offering equipment retrofit options, heat recovery ventilation systems, and air quality control solutions including REME HALO technology. Their service catalog encompasses both residential and commercial projects, from traditional central air conditioning to specialized wine cellar climate control and modern heat pump installations.

Customer stories shared in reviews reveal the practical expertise driving the company's reputation. When Boris Gelman's existing AC system failed during an intense summer, the team completed a full air pump installation with detailed guidance on optimal system selection and operation. Lucy Yan described a two-week turnaround from initial consultation through final installation of both a new central AC outside unit and a separate room-specific system, with Josh personally evaluating wire routing and unit placement to balance aesthetics with costs. Anne Bernstein's mini-split installation involved Josh's sizing consultation followed by Jose's crew performing the installation work.