Simpson Decks and Construction LLC has years of experience installing quality decks and pergolas for homeowners in West Richland, WA and throughout the Tri-Cities. Our licensed, bonded and insured company is ready to take on any deck or pergola project you have in mind. We'll work with you to create a deck or pergola design that you love, then build it using only the best materials. We won't rest until you're completely satisfied with your new deck. Contact us today to arrange for deck, railing, pergola or deck cover services. We offer free estimates.