Crucial Roof Services Ltd provides excellent customer services. Greg is very knowledgeable and is very willing to explain and educate us of what's the problem on our roof / attic. He took lots of photos to show us too. The price is reasonable, and he also did a few things for us with no charge! we will definitely have him come back to maintain our roof in the future or to do any type of roof work! We are very happy with their service.