Great job by Alan and Dave on my roof repairs. They found the source of a leak that has been causing me problems for the last couple of months. Also kudos to Richard for noticing some shingles that slipped and would have caused damage in time had he not noticed. Everyone was very knowledgeable about roofing and very honest in their assessments. I have used 3rd generation before and they are my first call for roofing and siding.