D.J. Wooliver & Sons, Inc is a full service, 105 year old, family owned commercial roofing company that has developed and mai ... ntained an excellent reputation for high quality and dependable service, and continue to work everyday to preserve it. DJW has continued to grow and adapt as the roofing industry evolves. We have been able to stay on the leading edge of industry advances in large part due to the capabilities and experience of our employees. read more