Ed is a licensed architect with over 30 years of experience in California, specializing in waterproofing, and roofing. His work centers on the intersection of design, construction, and forensics, with a strong focus on identifying the causes of water intrusion and moisture-related failures in both new construction and existing buildings. Ed has built a respected career consulting on residential, commercial, and institutional projects, with services that include forensic investigations, peer reviews, plan certification, repair documentation, site inspections, and quality assurance during construction and repair phases. His expertise makes him a valuable resource not only during the design and construction process but also in legal disputes involving construction defects.

In the litigation arena, Ed has been designated as an expert witness in a wide range of construction defect cases throughout California. He has worked with both plaintiffs and defendants, providing thorough investigative reports, repair strategies, and courtroom testimony. His past cases include complex disputes involving public institutions like UC Santa Barbara and Cal Poly Pomona, private high schools, large residential condominium developments, and custom homes across Southern California. Whether representing owners, builders, or general contractors, Ed’s ability to communicate technical information clearly and credibly has made him a trusted figure in legal proceedings. His work often involves analyzing roof and deck systems, window and wall failures, basement leaks, and retaining wall issues, many of which require on-site testing, ASTM-compliant water tests, and field documentation.

Ed’s background includes a Bachelor of Science in Architectural Engineering from Cal Poly San Luis Obispo, and his professional credentials include membership in the American Institute of Architects and the International Institute of Building Enclosure Consultants (formerly RCI). He has continued his education with specialized training in areas such as advanced thermal and moisture control, water testing methodologies, stucco repair systems, mold litigation, and cool roof technologies. He has presented seminars for AIA chapters, CSI groups, and architecture firms, sharing practical insights into effective waterproofing design and construction strategies.

Over the course of his career, Ed has consulted on high-profile projects such as the UC Berkeley Stadium renovation, the UCLA Dykstra Hall residence refurbishment, and multiple re-roofing and waterproofing projects at the Walt Disney Resort in Anaheim. His portfolio also includes detailed repair programs for large condominium complexes like Century Hill in Los Angeles, as well as hundreds of custom residential estates ranging from beachside homes to hillside and cold-climate properties. Ed Sapigao’s deep technical knowledge, forensic experience, and courtroom credibility make him a critical resource for any legal team or property owner dealing with building envelope failure or construction defect litigation.