I was stressed about my roof installation, wondering about all the things that could go wrong without my knowing about it. The roof is a major investment and also a major part of the protection system for my home, and I wanted the installation to be done right. GPI came out promptly, and they did a thorough job of checking things over. They pointed out some minor issues to bring up to the installer, and also put everything into perspective so that I could rest assured that things are ok. They listened carefully to my concerns and answered all of my questions. GPI gave me peace of mind.