Jensen Precast Locations

Jensen Precast has facilities across the Western United States. Product availability varies by location. If you need a product immediately, contact us to ensure availability.

We welcome engineers, specifiers, agencies, contractors, and community members to tour our facilities. Contact one of our Locations directly to arrange a visit. 

Shelton, Washington

ProGlass Incorporated, a leader in fiberglass utility products, is now a part of the Jensen Precast family of products. Located in Shelton, Washington, ProGlass manufactures trench covers, box pads, ground sleeves, splice boxes, and more. Fiberglass is popular in the utility industry because, like precast concrete, its nonconductive nature makes it a safe alternative for electric utility companies. Also, fiberglass is extremely lightweight and exceptionally durable. This facility is located just off Washington State Route 3 a few minutes west of the Oakland Bay.

Address: 3260 E Johns Prairie Road, Shelton, WA 98584

  • Office Hours: 8:30 am - 4:30 pm, Monday - Thursday
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