Our Credentials

Sinai Construction Engineering
California State License Number 457238
General Engineering Contractor (A)
General Contractor (B)

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Winner, Angie's List Super Service Award (2015, 2014, 2013, 2012, 2011)

Winner, Talk of the Town Award for Customer Satisfaction (2014, 2012, 2011)

Member, International Concrete Repair Institute (ICRI)

Member, National Association for Waterproofing and Structural Repair Contractors (NAWSRC)

Certified for earthquake retrofitting by the Los Angeles Department of Building and Safety (LADBS) and the Los Angeles Department of Housing (LAHD)

Authorized for trench excavation by the State of California Department of Industrial Relations, Division of Occupational Safety and Health (OSHA)

Experienced in projects involving the Federal Emergency Management Agency (FEMA), Los Angeles Neighborhood Housing Services (LANHS) and the Community Development Commission (CDC)

Up to $2,000,000 aggregate general liability insurance.

Worker's Compensation

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  • Winner, 2015 Angie's List Super Service Award

    Winner, Angie's List
    Super Service Award 2015

  • Winner, 2014 Angie's List Super Service Award

    Winner, Angie's List
    Super Service Award 2014

  • Winner, 2013 Angie's List Super Service Award

    Winner, Angie's List
    Super Service Award 2013

  • Winner, 2012 Angie's List Super Service Award

    Winner, Angie's List
    Super Service Award 2012

  • Winner, 2011 Angie's List Super Service Award

    Winner, Angie's List
    Super Service Award 2011

  • Member, International Concrete Repair Institute

    Member, Int'l Concrete Repair Institute

  • Home Advisor Screened and Approved

    Screened and Approved by Home Advisor

  • Talk of the Town Award winner for Customer Satisfaction

    Winner, Customer Satisfaction Award
    2014, 2012, 2011

"I will definitely recommend Sinai Construction to anyone looking for a competent, reliable and professional construction company in the Los Angeles area. I recently contracted them to do earthquake retrofitting for my house and all throughout the project they were always on time, the workers always clean up after themselves, the job was done on time and on budget, and they always took the time to answer my questions."

Gail B., Mid Wilshire

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Gary Sinai

Gary Sinai, Founder and President

A third-generation contractor, Gary Sinai has been providing construction services since 1984. Gary, a General Engineering Contractor and a General Building Contractor, has specialized engineering knowledge and skill in infrastructure work.

Sinai Construction Engineering is driven by Gary's passion for structural and concrete work. The years he spent specializing in complex structural construction have made Sinai Construction what it is today: Southern California's most experienced and respected foundation contractor. Gary's dedication to his work is reflected not only in his and his team's output. It translates to exceptional, award-winning customer service that has become Sinai Construction's trademark quality.