Menu CONTACT US BEST IN CLASS Waterproofing, Sealant, and Restoration Services LEARN MORE SCROLL DOWN We Believe in Our History. ESTABLISHED IN 1981 L.S. Decker is built on a long history of industry experience and a relentless adherence to our values – the core of which are safety, quality, and integrity. These values are what we believe, what we expect, and what we consistently deliver. LEARN MORE PREMIER PROJECTS ← BRADY Dallas, Texas →