Your Washington State Commercial & Industrial


We have been in the structural concrete repair, coatings, and linings business since 1976.

As a family business growing in the western United States and working throughout the U.S., we provide the best possible quality job installing coatings and liners for our clients. We supply and install primary and secondary containment for industry’s aggressive chemicals, including protective coatings, surfacers, and plastic liners. We supply and install self-leveling and engineered cements, epoxy or urethane crack injection, and composite fiber systems for strengthening, stiffening, and reinforcement of structural members.

Our History

In 1976, Louis A. Leewens left his job as sales manager for an international manufacturer of coatings and plastic liners and moved from California to Seattle, WA with his wife, Sheila and family. Louis and Sheila started their own company, the Leewens Company, and Louis worked as a manufacturer’s representative selling coatings and liners to businesses, such as Boeing, Tektronics, Crown Cork and Seal and Weyerhauser. But, they quickly noticed there were very few companies who knew how to properly apply or install these coatings and liners.

Our Clients

We work nationally for clients such as Boeing, Intel, Microsoft, Freightliner, Morton, Rohm and Haas, BNSF, Pennwalt, Occidental, IBM, Weyerhaeuser, Union Carbide, Shell, Exxon, Chevron, BP Oil, Texaco, Arco, Tosco, Hewlett-Packard, Tektronix, Fujitsu, Fairchild Air Force Base, Joint Base Lewis-McChord, Puget Sound Naval Shipyard,, A.M.D., National Semiconductor, Matsushita, US West, Immunex, Fred Hutchinson Cancer Research Center, Virginia Mason, Harborview, MultiCare, SEH America, Asimi, Heinz, Ore-Ida, Kraft, Nabisco, Treetop, McCain Foods, Kroger, Safeway,, Safeco Field, Seahawks Stadium, Sea-Tac International Airport, Port of Seattle, Bangor Naval Base, WA, OR, and CA DOTs, BART, Hanford Nuclear Reservation (DOE), City of Spokane, Everett, Seattle, Tacoma, various state and federal municipalities, and many others.

Our Expertise

Speciality coatings, liners, concrete repair, elastomeric decking, waterproofing, epoxy and urethane injection since 1976

Our installation technicians are trained professionals. We are dedicated to being the industry leader through training, progression, and technical excellence. The coatings and membranes we install are the highest quality, produced by various national manufacturers. We install our coatings, linings, and surfacers on concrete or steel floors, storage and process tanks, trenches, sumps and pits, tanks, cells, lagoons, ponds, and leach pads where needed for chemical resistance, abrasion resistance, containment, ESD, or to provide a dust free, easy to clean, attractive, abrasion resistant finish. We are experts at surface preparation by open blasting, steel shot dust blasting, or etching.