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62 service profiles
General Contractor businesses and related repair services are available around Los Angeles, CA.
5.0Rating
5Reviews
0Photos
12Services
About this business
Sinai Construction is a structural foundation repair business serving Los Angeles, CA. Sinai Construction provides core services including foundation repair, foundation replacement, seismic retrofitting, soft story retrofit, hillside foundation repair, sloping floor repair, yard drainage solutions, waterproofing, slope repair, retaining walls, and foundation health checks. Sinai Construction is an established, family-owned, and locally operated company with over 40 years of experience. The business features licensed, credentialed, and experienced specialists and supports projects with advanced diagnostics and construction expertise.
General Contractor
Services
Services and categories listed for this business.
General Contractor
Foundation Repair
Foundation Replacement
Seismic Retrofit
Soft Story Retrofit
Hillside Foundation Repair
Sloping Floor Repair
Yard Drainage Solutions
Waterproofing
Slope Repair
Retaining Walls
Foundation Health Check
Location
Address and directions for this business.
Questions & answers
Helpful answers
Quick answers from this business profile.
Is Sinai Construction licensed, credentialed, and qualified? +
Sinai Construction's foundation structural repair specialists are licensed, credentialed, experienced, and more than qualified.
What services does Sinai Construction provide? +
Sinai Construction provides foundation repair, foundation replacement, seismic retrofitting, soft story retrofit, hillside foundation repair, sloping floor repair, yard drainage solutions, waterproofing, slope repair, retaining walls, and foundation health checks.
How long has Sinai Construction been serving Los Angeles? +
Sinai Construction has been serving Los Angeles since 1984 with over 40 years of experience in structural foundation repair.
Does Sinai Construction handle hillside foundation repair? +
Yes, Sinai Construction specializes in hillside foundation repair and has been successfully repairing and replacing hillside foundations for decades in Los Angeles.
What is involved in a foundation health check? +
A foundation health check by Sinai Construction includes inspection for cracks, sloping floors, misaligned doors, soil erosion, water pooling, and earthquake safety assessment to determine foundation condition and necessary repairs.
Reviews
5.0
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5 reviews
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Takanori Ohkubo
Dec 3, 2025
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5.0
Great experience for Earthquake Brace Bolt (EBB) process! Daniel & Fernando were very knowledgeable about the process. They did a great job of preparing everything for the EBB app and the job was completed efficiently and effectively. Great communication and updates throughout the process. Thanks!
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Keith Hamilton
May 19, 2025
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5.0
Top-quality construction and the very best customer service make Sinai an easy choice. The site crew were always on time and left the jobsite tidy every day. Daniel kept me informed and answered all of my questions throughout. Very highly recommended.
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Michael Alexander
Nov 11, 2023
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5.0
Needing foundation work is a major renovation. Sinai construction were utterly professional in all stages of the project, from initial conversations to the daily work of the foreman and team over the course of several weeks. The result is top quality. Highly recommended.
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Cassie Nelson
Mar 9, 2024
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5.0
Excellent company for foundation help! Couldn’t be more pleased with the entire EBB ( LA Earthquake Brace & Bolt Program) and using Sinai to do the work and help us navigate the process. So grateful!
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Debra Westerlund
Jan 31, 2024
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5.0
Working with Sinai Construction has been beyond an amazing experience. They respond timely, they are professional and personable too. They started work immediately, taking photos, getting permits and loading everything into the FEMA portal. Immediately, they were approved and started work. They kept all their equipment neat and out of the way during the 3 days of actual work. The employees are very polite, professional and everyone wears uniforms with the Sinai logo which is a plus for me. I have already recommended them to my neighbors.
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