Repair, Protect, and Strengthen
Simpson Strong-Tie has become a trusted manufacturer of chemical, mechanical, direct-fastening, and carbide drill bits and accessories since entering the market in 1994. Now in our 20th year, we continue to expand to provide the most comprehensive product offering to serve infrastructure, commercial, industrial and residential construction markets. These innovative products are the result of more than 40 years of laboratory development, field study and contractor input and have passed the rigorous performance and quality assurance testing you have come to expect from Simpson Strong-Tie. We will continue to expand upon this line of repair, protection and strengthening products and provide our customers with industry leading jobsite, technical and customer support.
Composite Strengthening Systems™
Simpson Strong-Tie and Structural Technologies are leaders in structural solutions — products, technology and services that help people design, build and repair structures to make them stronger and last longer. Structural engineers, contractors and infrastructure owners have chosen our companies for their concrete and masonry strengthening and repair projects because of our innovative, value-engineered products, designs, expert installation methods and dedicated customer support.
Composite Strengthening SystemsRepair and Protection Systems for Concrete and Masonry
The concrete repair, protection and strengthening solutions developed by Simpson Strong-Tie are the result of over 40 years of laboratory development, field study and collaboration with professional contractors. Each of these products have passed the performance and quality assurance protocols that are expected of Simpson Strong-Tie, and have been selected to address the unique challenges of Commercial Retrofit, Bridge and Marine and Water/Wastewater projects.
Repair and Protection Systems for Concrete and MasonryAsphalt Pavement Reinforcement Solutions
Now you can build roads that are stronger and more economical. Ideal for new construction or resurfacing, Simpson Strong-Tie asphalt reinforcement grids are tested and proven to extend the service life of roads, highways and other heavy-use areas. Our reinforcement grids are made from carbon fiber or glass fibers. They are flexible and pre-impregnated with bitumen to assist the installation and ensure perfect bonding between layers of asphalt. In addition, the carbon fiber grid is easily milled and recycled, making it reusable and highly sustainable.
Asphalt Pavement Reinforcement SolutionsSimpson Strong-Tie and Structural Technologies Alliance

Simpson Strong-Tie and Structural Technologies have formed an exclusive strategic alliance to leverage each other’s strengths and increase their respective market share in the concrete strengthening and repair business.
Learn MoreStructural Epoxy Repair Products

The Simpson Strong-Tie CI family of crack repair products has a solution for almost every job. Our epoxies are tested to the latest standards, so you can be sure that repairs are strong, and that your structures are safer.
Explore Our Crack Injection SolutionsFRP Best Practices Series

In this free webinar series we dive into some very important considerations including the latest industry standards, material properties and key governing limits when designing with FRP.
Watch Advanced FRP Design Principles Now Watch FRP Strengthening Design Fundamentals Now