Business Details
25 Years
experience
Trusted Concrete Decorative Wall Solutions by Slip Stone
Founded in 2001, Slip Stone has revolutionized decorative concrete construction through our patented slip-form extrusion technology. Our method allows for intricate patterns, textures, and graphics on concrete walls while maintaining structural integrity and environmental sustainability. With roots tracing back to Allen & Sons Construction established in 1979, our team combines decades of hands-on concrete expertise with innovative engineering solutions to meet federal and state transportation standards. We collaborate with leading contractors across 23 countries, offering specialized training and technical support for every project. Our commitment to quality is demonstrated through successful implementations in highway barriers, bridge parapets, and architectural curbing.By eliminating traditional labor-intensive methods, we deliver cost-effective, durable solutions that reduce maintenance expenses over time. Our proven track record with departments of transportation and international clients underscores our position as industry leaders in concrete wall technology. The company maintains strict compliance with DOT regulations while continuously exploring new applications for our patented system. Our dedicated leadership team, including President Penny Allen and Vice President Michael Allen, ensures every project receives personalized attention and technical expertise. This combination of innovation, experience, and client-focused service positions Slip Stone as a trusted partner for complex concrete projects worldwide.
Services
Decorative Wall Design
Slip-Form Extrusion
Concrete Texturing
Pattern Imprint Services
Global Partner Programs
Details
- Year established: 2001
Highlights and features
- We offer 20+ years of experience in concrete construction technology
- We developed the patented slip-form extrusion method for decorative concrete
- Our team provides on-site technical training for every project
- We maintain strict DOT compliance for transportation infrastructure projects
- Our solutions reduce long-term maintenance costs by 40%
Services
Slip-Form Extrusion
Our patented slip-form extrusion creates textured concrete walls with patterns and graphics. This continuous process reduces labor time while maintaining structural integrity. Transportation departments and contractors use this method for highway barriers, bridge parapets, and architectural applications requiring both durability and aesthetic appeal.
Decorative Wall Design
Custom concrete wall design services accommodate intricate patterns, murals, and textures. Clients choose from pre-designed templates or create bespoke graphics for highway sound barriers and urban infrastructure. This solution provides permanent decorative features without additional maintenance requirements compared to traditional form liners.
Pattern Imprint Services
Precision imprinting creates consistent textures on all visible surfaces of concrete structures. The process works during extrusion to add decorative elements front, back, and top simultaneously. This eliminates secondary treatments while ensuring lasting visual impact for transportation infrastructure projects.
Global Partner Programs
Training and technical support programs for contractors worldwide. Partners receive proprietary imprint mats, roller applicators, and on-site training. This network enables project execution in over 23 countries while maintaining quality standards through direct manufacturer support during installation.
Technical Assistance
Comprehensive technical support includes roller mounting instructions and design implementation guidance. Our specialists provide hands-on training for concrete mix specifications, coloring methods, and curing techniques. This ensures proper execution of patented processes during critical phases of wall construction projects.
People
Mike Allen Sr.
Inventor
Concrete industry veteran with over 40 years experience. Developed the SlipStone slip-form extrusion method after decades of traditional construction work. Holds patents in multiple countries for concrete texturing technology. Industry pioneer in decorative wall solutions.
Penny Allen
President
Over 30 years in concrete construction leadership roles. Oversees daily operations at Slip Stone and Allen & Sons Construction. Manages global partnerships and contractor relationships. Ensures quality control across international projects using patented technology.
Michael Allen
Vice President
Concrete technology expert with 25+ years field experience. Directs project management and technical implementation. Provides on-site training for SlipStone methods. Coordinates with departments of transportation to maintain compliance with safety and design standards.
Questions
What is the SlipStone slip-form extrusion method?
Our patented process creates textured concrete walls with patterns and graphics during the forming process, reducing labor time while maintaining structural integrity for transportation infrastructure applications.
Which agencies recognize SlipStone technology?
Our system meets Federal Highway Administration standards and has been approved by multiple state departments of transportation after extensive testing and field validation programs.
How does SlipStone benefit transportation projects?
Our solution reduces long-term maintenance costs by 40% compared to traditional methods. The decorative elements are permanent and integrated during construction, eliminating separate finishing processes.
What geographic areas do you serve?
We operate globally with partners in North America, Europe, Asia, Australia, and Africa. Our technical support team assists projects in over 23 countries through established contractor networks.
Can existing contractors implement SlipStone technology?
Yes, we provide proprietary equipment and on-site training for qualified contractors. Our partner program includes imprint mats, roller applicators, and technical guidance for successful implementation.
