About Us SLIS is a Certified Minority Company by the Houston Minority Supplier Development Council (HMSDC). Straight Line Ind ... ustrial Services, Inc. originally began as Straight Line Insulation, I. LP. This minority owned business is a result of hard work, dedication, teamwork and family. The original three owners are brothers that have a combined 85 years of experience in the Insulation, Scaffolding & Tank Paneling industry. Our goal is to be the leading provider of insulation, Heat Tracing, Sewn Blankets, Steam Manifolds and Scaffolding industries in the Houston and surrounding areas ~ SLIS has State licenses to work on different States in the continental USA. Our Mission At Straight Line Industrial Services, Inc., we believe on being a responsible service company, is not only the right thing to do, but the right thing to do for our business & for the safety of our employees. Our mission is to be the national insulation service & fabricator company focused on meeting those with insulation needs in their industry. We seek to produce the best service & product to our customers as we provide opportunities for growth and enrichment to our employees. Commitment We are committed to using our 85 years of combined experience to surpass our clients' expectations. All while keeping quality of work, commitment, professionalism and safety at the highest priority. We have a Full Safety Program in place with a current EMR of 0.59 We take pride in our facilities and dedicate time to making our offices comfortable and professional. We welcome anyone that would like to visit, take a tour and get to know the leader in Insulation, Standing Seam Tank Insulation, Heat Tracing ( Electrical & Steam Tracing),Scaffolding (Layher brand only German Made), Fabrication of Steam and Condensate Manifolds and Sewn Removable Reusable Blankets. read more