I had Dwights come out and re-roof our house that was built in 1992 and was less than impressed. The quoting process went well and when they did the job they did it in the amount of time they said they would. The crew seemed ok and the roof looked good from down on the ground.
However, the trouble came when it first rained. Water was pouring into our attached garage. They came and fixed it but not sure of the details of what they had to do. It has now been approximately 3-4 years since the job was completed, and recently water has started leaking into the garage again. I checked it out myself and found that they left a big gap where they cut the flashing next to the outside wall and did not put in a new piece as they should have -- I have done this myself and it doesnt leak anymore.
Another issue we had came up a few weeks after the first. Water was leaking down through an interior wall and into the basement near the furnace. They came out and apparently just gobbed on silicone everywhere hoping that would work. It did not. After several calls they were saying that our house wasn't built right and that there should be a "cricket" to channel water away from the chimney. However I know that there are many houses built this way and we had never had a leak and the house was 20+ years old. I pulled apart the siding and checked out the flashing and found that they had punctured it with a nail, allowing water in. If they had bothered to investigate further they would have found this. I fixed it and have not had a leak since.
As well, many nail heads were left exposed and they promised to come back in the spring to seal them but I never heard from them again and was not thrilled about them touching my roof anymore.
Afterwards, I also realized that they had left the old plumbing vents even though i paid for new ones to be installed. We also found handfuls of nails in the flowerbeds and surrounding areas for weeks after the install.
I gave them many opportunities to address the problem and they chose to ignore it and say that it was the builder's fault.