A & A Plumbing

A & A Plumbing has served the South San Francisco Bay Area since 1947, establishing itself as one of the region's oldest and most reliable plumbing companies. Our family-owned business operates with working owners actively involved in daily operations, ensuring personalized service and long-term customer relationships. We specialize in residential, commercial, and industrial plumbing solutions, including repiping, HVAC systems, and geothermal heating and cooling. Our team of factory-trained technicians provides comprehensive services such as backflow testing, leak detection, water heater repair, and bathroom remodeling. We prioritize customer satisfaction through guaranteed work, senior discounts, and maintenance contracts while maintaining industry certifications and memberships with organizations like IGSHPA and ACCA.

Our commitment to quality extends to environmentally conscious solutions like geothermal systems and water filtration installations. With mobile service vans and an operations manager coordinating efficiency, we serve communities across San Mateo and Santa Clara Counties. Our BBB accreditation and Chamber of Commerce membership reflect our dedication to ethical business practices. We stand behind our work with above-average warranties and transparent communication, ensuring clean job sites and professional proposals without commissioned salespeople.