Initially, I was somewhat apprehensive since I did not know this company and being a female have had some negative experiences with contractors. However, they responded immediately when I called and came to the house to do a quote. They were very attentive to my needs and requests. Their crew worked hard and kept me informed about progress on coating the flat part of the roof on my 215 yr old house. Did exactly what they said they would do and so far 0 leaks. My apprehension proved groundless. Highly recommend this company. Honest and trustworthy. Have another porch with flat roof and will call this company when I need it coated with this technology.