I am a contractor in New Jersey. I have been pressure washing and sealing the sides of buildings for about 10 years now. Since I switched over to this line I have had a 52% increase in business just from referrals. The product outlasts and outperforms all other water repellents I have tried. It has helped with freeze thaw and salt damage, it has helped with staining, and it has helped with minor leaks through brick walls. My customers are very happy with this product as am I. I can't say enough good things about the performance of this product, or about the customer service. Mike and Eric have always been very helpful. Mark is a pleasure to work with as well. I look forward to a lasting relationship with your company!