All Temperature Service, Inc. (ATS)

All Temperature Service has anchored its reputation in the heart of Silicon Valley for more than two decades, earning a 4.3-star average across 10 verified reviews while serving both residential neighborhoods and institutional campuses throughout San Jose, Campbell, and Saratoga. The family-owned contractor fields a union-certified crew capable of tackling projects that span heating system overhauls, indoor air quality retrofits, and the specialized commercial refrigeration work that campus facilities and property managers depend on. Daily availability from 6 AM through 11 PM gives clients flexibility that smaller one-person shops cannot match, and the breadth of skills under one roof means a single dispatch can address interrelated HVAC and plumbing concerns without costly callbacks.

ATS holds distributor-level certifications that open access to equipment lines unavailable through retail channels, giving customers factory-backed warranty support rather than third-party workarounds. The company backs its diagnostic and repair work with a documented labor guarantee, and its commercial division specializes in the permit-heavy retrofits that schools and multi-tenant properties require. This combination of certified access, accountable guarantees, and institutional experience creates a different value equation than the transactional repair visits that dominate the market.

When Isabel Perez faced a heating collapse at her private school just weeks before a regulatory inspection, ATS dispatched a technician team within hours of her first call. Dolores handled the intake coordination and Jonathan led the service team on-site, delivering a full repair before inspectors arrived and earning praise for patience and thorough communication throughout the job. Similarly, commercial property manager Alex Ayala Sr. relies on ATS as a permanent vendor for preventive maintenance across his portfolio, citing consistent same-day response and the technical depth that keeps specialized rooftop units running without repeated emergency calls.