Our home was built in 2012. They did the plumbing for the house including the Radon pipe. In March of last year we had the radon fan put in as a precaution for when we finish the basement. Yesterday I noticed water coming from the insulation behind the radon pipe. The issue wasn't there before, however, condensation won't form inside the pipes until that fan was installed. All the water seems to be coming from the pipe joints which would mean they were never properly glued. I asked them to come out and check because of what I saw and to do it at no cost due to the fact, that assuming I'm correct about the joints, it's shoddy work that caused the issue. I was told they charge $125 an hour, and, even if I'm right and the joints weren't properly glued that it's out of warranty anyway.
So to recap, if something is their fault - they charge you for it anyway. I wasn't even offered them coming out to check and if they see I'm right a fix at no charge, but if I'm wrong I'm charged. That I would've understood. Instead it was even if it was our fault it's out of warranty anyway. They clearly don't stand by their work so I'll be having another plumber I can trust come and check it out.
Despite what my profile on here states, I don't live in CA - I live in PA.