At Leska LLC we strongly believe in certification and renewal courses. Our biggest asset is our availability to custom fabricate custom flashing and knowldedge of European flashing methods. 

For clarity and simplicity each certification is clickable for you to see actual certificate. This is collection of almost a decade of methodical improvement and expanding our line of only quality products. Many of the certifiactions are obtained for the entire team so ecah individual installing thi line is also certifed.