Very professional and very, very knowledgeable.

GAF could not have a better representative/installer of their products.  Professional, fast, neat.  Mr. Kontogiannis is a pleasure to do business with.

George and his team were incredible fantastic. All done in one day.

I cannot say a bad word about GKontos Roofing Inc.  He and his crew went above and beyond other contractors we have dealt with in our 41 years of ownership.

The roof was complete quickly and professionally.  George has great knowledge of the product.  I would and have highly recommended him.

George is Awesome! He returns calls. Shows up on time and took a disaster to perfection in a day. I highly recommend GKontos Roofing.