Very pleased and satisfied with the work done to my new roof. The work speaks for itself! You cannot find a more knowledgeable contractor than Genaro and Manny. I could have saved some money by hiring a non-certified contractor for my new roof but I wanted to have a peace of mind. Being an Owens Corning Preferred Contractor is what made my decision easy. Genaro and Manny really did an excellent job explaining to me the mistakes non-certified contractors do. Both did an excellent job explaining how a roof should be installed. I highly recommend Bison Roofing and Construction for your next project. Excellent work done by true professionals!