Water Heaters in Diamond Heights, San Francisco

Heise's Plumbing recently completed a professional tankless water heater repair for a residential home in the Diamond Heights neighborhood of San Francisco, California. The homeowner reported a complete loss of hot water and an error code on their wall-mounted tankless unit. Our technician arrived promptly, inspected the system, and determined that the flow sensor and gas valve required servicing. We completed the necessary repairs to restore continuous hot water flow and thoroughly flushed the system to clear mineral scale deposits from the heat exchanger. After completing the repair, the tankless water heater was fully tested to verify all safety controls and temperature sensors were operating at peak efficiency for safe, reliable operation.

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Why Homeowners Choose Heise's Plumbing

  • Family owned and operated since 1954
  • Licensed, bonded, and insured California contractor
  • Sewer, plumbing, electrical, and appliance experts
  • Proudly serving San Francisco and the Peninsula
  • Thousands of successfully completed projects
  • Over 1,700+ Verified 5-Star Reviews

Project Details

Service Performed Water Heaters
Neighborhood Diamond Heights
City San Francisco, CA
Property Type Residential
Problem Tankless water heater error code and loss of hot water in Diamond Heights
Solution Serviced flow sensor and gas valve, flushed mineral scale, and verified safety controls
Status Completed
Category Water Heaters
Date Completed Jul 31, 2026

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