California Plumbing & Radiant Heating Inc.

California Plumbing & Radiant Heating Inc. operates from Oakland, California as a specialized heating contractor focused on radiant and hydronic systems. With a perfect 5-star rating across seven customer reviews, the company has built its reputation serving East Bay homeowners who rely on tankless water heaters and complex radiant heat installations. Owner Gerald leads service calls personally, bringing diagnostic expertise that reviewers describe as unmatched in the Bay Area.

What distinguishes this contractor is narrow specialization in systems many area plumbers avoid, hydronic radiant heating and tankless water heater repair. Multiple reviewers note that previous companies lacked the knowledge to service their specific setup, yet Gerald arrived with tools in hand and spent 45 minutes walking customers through system diagnostics. He provides honest assessments and declines to bill when no immediate repair proves necessary.

Homeowners repeatedly cite Gerald's honesty as the defining trait. One reviewer inherited a complex hydronic system after purchasing a home; two previous contractors charged extensively without solving the problem. Gerald communicated via text, arrived promptly, and diagnosed the root cause. Another customer with a malfunctioning hydronic heater received a thorough analysis over the phone before Gerald would accept a service visit, then refused payment once he confirmed the system operated correctly.