I’ve had the same bathroom sink back up three times in the last year and I’m tired of calling whoever is available and getting a temporary fix that lasts a few months. The last guy snaked it and told me it was hair, but honestly it keeps coming back and I’m starting to think there’s a bigger issue in the pipe itself. A coworker mentioned Professional drain and pipe repair around Palo Alto as an option since they deal with older homes and don’t just do a quick snake and leave, and I’m considering giving them a call. What I want to know is whether anyone has had a recurring clog actually solved rather than just cleared, and how they figured out what the real problem was. Did they use a camera or just guess? I’m happy to pay for a proper diagnosis if it means I’m not doing this again in six months.