Been in the pipefitting game long enough to see what goes wrong when a GC picks the wrong plumbing sub. Here are the 5 questions that separate the pros from the problems:

1. "What's your rough-in timeline?"

If they can't give you a clear answer, they're guessing. A good sub knows their pace per fixture and plans around your framing schedule.

2. "Do you carry your own insurance?"

Sounds obvious, but you'd be surprised. Always verify — don't just take their word for it.

3. "How do you handle change orders?"

Mid-project scope changes happen. You want a sub who documents everything and communicates cost impacts before touching pipe.

4. "Can I see your last 3 inspections?"

Pass rate tells you everything. Anyone can talk — inspection records don't lie.

5. "What's your warranty on labor?"

A sub who stands behind their work will tell you upfront. If they dodge this question, that's your answer.

We built HH Pipefitters on these exact principles. If you're a GC looking for a plumbing sub who actually shows up, communicates, and passes inspections the first time — we should talk.