✓ Licensed, Bonded & Insured · Since 1977

Comprehensive Seismic Retrofitting Services

We provide a full range of structural reinforcement services designed to protect buildings from earthquake damage and bring properties up to current safety standards.

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80,000+

Inspections

8,000+

Projects Completed

1977

Serving L.A. Since

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House Floor Leveling

House Floor Leveling

Uneven or sloping floors are often a sign of underlying foundation issues that can worsen over time. Our house floor leveling services address the root cause—whether it’s settling soil, weakened supports, or structural shifts—to restore stability and alignment. We use proven techniques to re-level your home safely and effectively, improving both structural integrity and everyday comfort.

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Drainage Systems

Drainage Systems

Proper drainage is critical to protecting your foundation from water damage and soil erosion. We design and install customized drainage solutions, including French drains, surface drains, and grading improvements, to redirect water away from your property. By managing water flow effectively, we help prevent foundation issues and extend the life of your structure.

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Crawl Space Protection

Crawl Space Protection

Your crawl space plays a key role in the overall health of your home. We provide comprehensive protection solutions, including moisture barriers, ventilation improvements, and structural reinforcement, to prevent mold, rot, and structural deterioration. A properly protected crawl space improves air quality, energy efficiency, and long-term durability.

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Hillside Stabilization

Hillside Stabilization

Properties built on slopes face unique challenges, including soil movement and erosion. Our hillside stabilization services use engineered solutions such as retaining systems, drainage control, and soil reinforcement to secure your property and prevent landslides. We ensure your structure remains safe and stable, even in challenging terrain.

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Caissons and Grade Beams

Caissons and Grade Beams

For properties requiring deep foundational support, caissons and grade beams provide strength and stability below the surface. Caissons transfer structural loads to stable soil layers, while grade beams distribute weight evenly across the foundation. Together, they create a reliable system designed to support structures in areas with poor soil conditions or high seismic risk.

Retaining Walls

Retaining walls are essential for managing soil, preventing erosion, and creating usable outdoor space on sloped properties. We design and construct durable retaining walls that combine structural performance with aesthetic appeal. Whether for functional support or landscape enhancement, our solutions are built to last.

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Concrete Slab Repair

Concrete Slab Repair

Cracked, uneven, or sunken concrete slabs can compromise both safety and structural integrity. Our concrete slab repair services address issues such as settling, soil movement, and wear over time. We restore your slab using effective repair methods that improve durability, appearance, and long-term performance.

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Gabbion Systems

Gabbion Systems

Gabion systems use wire mesh cages filled with stone to create strong, flexible structures for erosion control and slope stabilization. These systems are highly effective in managing water flow and reinforcing soil while blending naturally with the environment. Gabions offer a durable, cost-effective solution for both residential and commercial applications.

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Soft Story Retrofit

Soft Story Retrofit

Soft story buildings—typically multi-story structures with open ground levels—are especially vulnerable during earthquakes due to a lack of lateral support. We strengthen these weak points with engineered solutions such as steel frames and shear walls, significantly improving stability and safety. Our retrofit solutions help bring buildings into compliance while protecting lives and property.

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      EXCELLENT  
   Based on 57 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Mendy Ceitlin 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thank you Winston constructions were amazing to work with and were able to retrofit our home for earthquakes
  
 
      Posted on Google  
   
   Ralph Spude 
 
 
 
 Trustindex verifies that the original source of the review is Google. My house is built above a crawl space so I wanted more protection from earthquakes by adding seismic retrofitting in 2013. Weinstein Construction exceeded my expectations with regard to my seismic retrofitting project. This year I learned about an insurance discount for retrofitting. I contacted Weinstein Construction and although they no longer had a record in their files they contacted the city for that information. They went the extra mile when it came to customer service.
  
 
      Posted on Google  
   
   Elinor Shalom 
 
 
 
 Trustindex verifies that the original source of the review is Google. Weinstein Construction did an excellent job and were incredibly helpful throughout the entire process. The team was easy to work with, always punctual, and very responsive whenever we needed anything—the office staff was just as attentive and supportive. They explained everything clearly, so there wasn’t any surprises. Overall, we were extremely pleased with both their workmanship and their outstanding customer service. We would definitely recommend them!
  
 
      Posted on Google  
   
   Dom C 
 
 
 
 Trustindex verifies that the original source of the review is Google. I had a great experience working with Weinstein Construction on my California EBB (Earthquake Brace + Bolt) grant and seismic bracing project. From the beginning, they were extremely knowledgeable about the program and walked me through the entire process step by step. They helped make the paperwork and requirements much easier to understand, and they stayed organized and communicative the whole time.

Once the project started, their team handled everything professionally and efficiently. The work was completed on schedule and they made sure everything met the program requirements so there were no issues with the grant. It was really helpful having a contractor who understood the EBB program so well and could manage the project from start to finish. I’m very happy with how everything turned out and would definitely recommend Weinstein Construction to anyone looking to complete an earthquake bracing project.
  
 
      Posted on Google  
   
   jcgc socal 
 
 
 
 Trustindex verifies that the original source of the review is Google. As a waterproofing company we couldn’t get to a job during Holidays,so we reached out to fellow waterproofers & Weinstein was only ones available on short notice & came from a distance ,was available to take over a basement flooding project.They gave straightforward price and did work promptly…Bravo glad their not our direct competitor …
  
 
      Posted on Google  
   
   Christian Hall 
 
 
 
 Trustindex verifies that the original source of the review is Google. Weinstein Construction Corp did an excellent job replacing two exterior stairs, parts of the second-floor walkway/decking, and all the railings at my apartment building. I received 4 proposals, and I chose Weinstein Corp because the communication and attention to details for the proposal were very good. Mr. Weinstein met with me a couple of times to look at the project, he always responded right away to any of my phone calls. He was very detailed and paid great attention on what needed to be done, and he explained things very well.

As the project started it was discovered that the walkway had extensive water damage which needed repair. This is where I am most happy, I hired Weinstein Corp. They knew exactly what needed to be done to fix the decking properly. The walkway required new joists, and extra support beam as well as two supporting steel posts in order to provide for better support. The engineer was brought in right away and provided the proper design drawings and extra permitting for the extra work. I am a hands-on person, and I like to know what is going on at all times and it was a pleasure dealing with Mr. Weinstein, his Forman Carlos, and all of his crew. I will definitely use them on future projects.

I am very happy with the way everything came out. The new stairs, walkway/decking, and railings all look great and secure.
  
 
      Posted on Google  
   
   Joann Gottlieb 
 
 
 
 Trustindex verifies that the original source of the review is Google. Our Bel Air property now has a beautiful new driveway and two sturdy retaining walls, all completed by this outstanding team. The quality of their workmanship far exceeded expectations, and the cost represented true value. I recommend them without hesitation to anyone needing a contractor who is thoroughly reliable, honest, and committed to flawless execution. Their communication is prompt and professional, and the overall experience was simply exceptional. I have nothing but praise for their services.
They transformed our Bel Air home with a expertly crafted driveway and pair of retaining walls. From start to finish, the results were impressive in both durability and aesthetics, offering excellent return on investment. If you’re searching for a trustworthy contractor who prioritizes precision and client satisfaction, look no further. Their responsiveness sets them apart, and I’m genuinely thrilled with every aspect of the project.
  
 
      Posted on Google  
   
   Allison 
 
 
 
 Trustindex verifies that the original source of the review is Google. They completed both a driveway and two retaining walls for us in Bel Air. Their work was exceptionally high-quality, and I received excellent value for my money. I highly recommend them to anyone seeking both a reliable and trustworthy contractor who will deliver the job with precision and care. Their service is second to none and they promptly respond to calls. I can’t express enough positive things about this contractor.
  
 
      Posted on Google  
   
   Kevin Eng 
 
 
 
 Trustindex verifies that the original source of the review is Google. Participated in EBB program. They handled everything with professionalism, excellent communication. Made the process super easy. Arranged and were present for city inspections, instructed us on how to navigate the EBB portal. Highly highly recommend.
  
 
      Posted on Google  
   
   joseph clark 
 
 
 
 Trustindex verifies that the original source of the review is Google. I highly recommend Weinstein Construction. Itzcik’s analysis of the problem and its solution and the work done to implement it was highly professional and successful.