Consumer stuff

So let's say you hired a company to put a new roof on your house, with a warranty of three years (even though the company's standard warranty is one year.) Two years in, your roof starts leaking. You call to complain numerous times, and file multiple complaints with the Better Business Bureau, but on only two occasions does the company actually send out some repair guys, who seem kind of puzzled and useless, say they couldn't see any obvious problem but they "sealed" the general area where the leaking might have been happening. The roof continues to leak. It's now several months PAST the original three year warranty (but the problem clearly started well before the warranty expired and has not been successfully resolved.)

Is there anything that can be done to get the terrible, terrible original company to honor that warranty? Or is it too late now because the warranty is technically expired?

A complaint file was opened with a local community action group (that works with the state's office of the attorney general) in July (before the warranty expired) but nothing has come of that.

Is the proper thing to do at this point to hire a different roofing company to diagnose and repair the problem, then to sue the original company for the cost of the repair? Is there any point at all in doing so?

If someone wanted to contact some local newspapers/TV channels about the situation in the hopes that might help in some way, how would one do so?

(Please don't comment to say that something should have been done sooner, as obviously it's too late to turn back time now. Thanks.)