From Andy De Mars.

Oswego Roofing
All info in this review can be verified by the buyers, sellers, agents and other multiple witnesses.
TERRIBLE customer service
TERRIBLE workmanship
TERRIBLE follow through
TERRIBLE communication
TERRIBLE management
TERRIBLE accountability
TERRIBLE commitment
TERRIBLE business
This review is after dozens of phone calls, a still uncompleted roof that was paid for by the sellers before we closed in October, and the worst customer service imaginable from a "family" business.
Oswego Roofing was the fill in for an overbooked roofer. It was a job that needed to be completed before the sale of the house could close. Oswego committed to the sellers that they could do it. There were numerous no-call no-shows and terrible communication. The close of the house was delayed due to this, causing terrible stress on the buyers, who were waiting to close on their new house. After we moved in, we found that the work was not completed. There was an entire ridge without shingles and the paper showing. The flashing around the chimney was a mess, and there was a downspout that was connected to nothing. I called them when I discovered this, and I was offered nothing but a run around. The excuses I heard included "we must have run out of product" and "no, it's done." When I tried to explain the issues with the roof and their service, a different "manager" could only say "I'm not going to argue with you."
After many phone calls, a "foreman" came out to "finish." He did the bare spot on the roof, and then slipped away without doing the rest, nor checking in with us. That was 2 weeks ago. Many more calls from the agent, the "manager" was supposed to come by yesterday at 4pm. No call no show again. He later told my agent (with attitude) that it was dark, so he didn't come by. Today, he finally shows, and gives my wife a hard time, and claims she doesn't know what she is talking about. She tells him to back up and look up at the missing rain deflector. He then DEMANDS that she show proof it was there. Nothing but rude to a pregnant homeowner. She never even got the chance to show him the shingles, old and new, strewn about our yard.
I will rather pay a different roofer for the repairs, and hope I NEVER have to use the warrantee on the roof.
NO response from Oswego's owner or manager. Maybe they don't need the business.