President Bill Leys was a licensed waterproofing contractor for over ten years, waterproofing Hollywood stars homes, condominiums and apartments throughout California. Bill has worked as a quality assurance monitor on major San Francisco Bay area projects such as the Louise Packard Children’s Hospital in Palo Alto, Google and and was a technical service representative with Kemper America an international waterproofing and roofing systems manufacturer before opening the doors as the only Building Envelope Consulting (BEC) firm in San Luis Obispo County in 2022.
Since opening, we’ve helped homeowners, condominium HOA’s, commercial building owners, architects and engineers just like yourself with their water intrusion problems, building envelope designs and construction defect investigations throughout California.
We’re not the biggest SB326 deck inspection company, but we are one of the best SB326 deck inspectors in the business. With over 20 years of experience, Bill has consistently set the bar in performing deck, roof and building envelope inspections for hundreds of clients throughout California.

I invite you to browse our website and learn more about our services, including balcony inspections for HOA’s under SB 326, leak investigations and leak testing, property condition assessments and quality assurance observation services. Be sure to visit our articles page to download our articles that have been published in JLC Magazine and other publications.
William Leys Waterproofing Consultants LLC is ready to help get your building envelope problems fixed at a cost that’s friendly to your budget with our affordable expertise!
We are fully insured with General Liability, Errors and Omissions and Workers Compensation insurance.
Give us a call at 805-801-2380 or drop us an email today to get started.