Founded in 1943 by E. Lester Congdon Sr. furnishing supplies for the WWII war effort, E.L. Congdon Lumber Co has been serving local contractors and homeowners for over 60 years. Since then weve grown at Congdon Lumber. We have expanded our inventory to include a complete selection of mason supplies, paving stones, and retaining wall block. In fact, we are the largest retailer of CST paving stones in Essex County.