Sinai Construction
Licensed general contractor in Los Angeles, California
Sinai Construction holds CSLB licence 1035535, active, licensed since 2 Feb 2018, rated 4.5 from 8 Google reviews. Bonded for $25,000 with Merchants Bonding Company (Mutual). Clean CSLB record, with no citations, complaints or legal actions disclosed.
Report card
- Licence activeCSLB #1035535, class B. Issued 2 Feb 2018, expires 29 Feb 2028.
- Licensed 9 yrsSince 2 Feb 2018.
- Bonded$25,000 with Merchants Bonding Company (Mutual), since 1 Jan 2026. California requires the same $25,000 bond of every contractor.
- Workers' comp insuredRochdale Insurance Company, policy JWC0700493401, valid to 4 Jan 2027.
- Clean CSLB recordNo citations, complaints or legal actions disclosed.CSLB record
- On the BBB, not accreditedIts BBB rating, complaints and reviews are on its Better Business Bureau profile.BBB profile Complaints Reviews
- 86 building permits since 2020Pulled under this licence (City of Los Angeles, LADBS), most recently 2 May 2023.
Checked against the Contractors State License Board (CSLB) register on 4 Nov 2026.
About Sinai Construction
Sinai Construction provides structural foundation repair services in Los Angeles.
- Founded
- 1984
- Serves
- Los Angeles
- Warranty
- 25 years on structural concrete work
- Estimates
- Free estimates
- People on the licence
- Edwin Warren Hill (qualifier, CEO and president)
From Sinai Construction's own website, read 5 Nov 2026. We only show what the site states.
Google reviews
4.5(8 reviews)Takanori Ohkubo★★★★★ 11 months agoView on Google
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!
Debra Westerlund★★★★★ 2 years agoView on Google
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, prof…
Keith Hamilton★★★★★ a year agoView on Google
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.
Michael Alexander★★★★★ 2 years agoView on Google
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.
Cassie Nelson★★★★★ 2 years agoView on Google
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!
Read all 8 reviews on Google Reviews and photos from Google, 4 Nov 2026.
Recent permits
Building permits pulled under licence #1035535, from City of Los Angeles, LADBS open data, which names contractors up to 19 May 2023. Locations are shown to ZIP code only.
- 2 May 2023 · Bldg-Alter/Repair · ZIP 90034Supplemental permit to permit #19016-10000-39128 to: Change the Contra
- 20 Apr 2023 · Bldg-Alter/Repair · ZIP 91356VOLUNTARY FOUNDATION REPAIR FOR (E) 2-STORY SFD: FOUNDATION CRACK REPA
- 4 Apr 2023 · Bldg-Alter/Repair · ZIP 90043VOLUNTARY FOUNDATION REPAIR FOR EXISTING SINGLE FAMILY RESISDENCE: FOU
- 28 Feb 2023 · Bldg-Alter/Repair · ZIP 90066Add sill plate anchor bolts and plywood to cripple walls (if existing)
- 27 Feb 2023 · Bldg-Alter/Repair · ZIP 90008FOUNDATION UPGRADE TO (E) SFD
Why it ranks #1133 of 9,857 general contractors in Los Angeles
Score 69.5 / 100. Claiming this listing or using Theo never changes it. How we rank
Other top general contractors in Los Angeles
See all 9,857- 1
Murphy Michael Construction Inc
- Licence active
- Bonded
- Workers' comp
- 2
Cavalier Builders Inc
- Licence active
- Bonded
- Workers' comp
- 3
Alpha Structural Inc
- Licence active
- Bonded
- Workers' comp
- 4
Cabinet Refresh
- Licence active
- Bonded
- Workers' comp
- 5
Sheibani Ali M
- Licence active
- Bonded
- Works alone
- 6
Hollywood Refinishing Inc
- Licence active
- Bonded
- Workers' comp