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Welcome
Mendoza Engineers, LLC is a City of San Francisco small local business enterprise (LBE) company.
At Mendoza Engineers, we bring over 20 years of expertise to every project—combining technical precision with a deep understanding of San Francisco’s unique residential landscape. Since our founding in 2012, we’ve partnered with mechanical contractors and architects to deliver innovative, efficient, and community-focused solutions. Our portfolio spans a wide range of residential work, with a strong emphasis on multi-family housing designed to meet the evolving needs of urban living.
We provide a full suite of services, including:
Mechanical, Plumbing, Fire Sprinkler Systems Design
Design/build performance specifications
Design review
Investigative consulting
Every project is personally overseen by our Principal, who remains actively involved from pre-design through post-occupancy. This hands-on leadership ensures a cohesive vision, consistent quality, and a seamless experience from start to finish.
With a strong foundation in both design/build and construction, we bring a practical, real-world perspective to every stage of development. This hands-on insight allows us to anticipate challenges, navigate complexities, and guide our clients with clarity and confidence—turning their vision into well-executed, successful projects.
About the Principal


Mario Mendoza is the Principal and Owner of Mendoza Engineers, bringing over 20 years of experience in mechanical engineering and building systems design. As a Registered Mechanical Engineer in the State of California, Mario is dedicated to delivering exceptional client service and high-quality technical design.
Mario is passionate about collaborating with clients and multidisciplinary teams to develop innovative, flexible solutions that prioritize both project goals and end-user needs. His deep understanding of the value of great design is matched by his commitment to practical, buildable outcomes.
He holds a Bachelor of Science degree in Mechanical Engineering from California Polytechnic State University, San Luis Obispo. Mario is an active member of the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) and the American Society of Plumbing Engineers (ASPE).
Mario Mendoza, PE LEED G.A.
© 2025 Mendoza Engineers. All rights reserved.
