McGraw and Sons Roofing | Roofing Services in San Jose, CA 95122

Given our founder's PhD in Water Diversion Engineering, we have deep expertise in managing moisture. For moss growth, we recommend and perform thorough roof cleaning to remove the biological layer and assess underlying damage. For insulation moisture, our inspections identify improper drainage or ventilation, followed by targeted repairs or re-roofing with materials designed for our local climate. Our approach prevents long-term structural damage common in the Bay Area.

We start with a free, detailed estimate to assess your current gutter system or needs for a new addition. Using quality materials from known providers, our installation focuses on precise water diversion away from your roof and foundation—a critical specialty given our local expertise. We ensure clear communication throughout the project, from selecting the right gutter type to the final inspection, making sure the system functions reliably for years.

Our long-term experience in San Jose means we understand how local weather patterns affect roofing materials and structures. For a replacement or re-roofing, this knowledge guides our selection of durable materials and installation techniques that specifically combat regional issues like moisture. You benefit from workmanship refined over decades and a professional process where we treat you like family, ensuring the project meets your needs and lasts.