Fixed a tricky three-way switch setup today and it felt great

I was working on a job in an older home today and finally sorted out a three-way switch that had been acting up for years. The homeowner said multiple electricians had looked at it but no one could figure it out. I took my time, traced the wires, and found a loose connection in one of the switch boxes. It was a small fix, but it made the whole system work perfectly. Now, I've heard some guys say that with old wiring like that, it's safer to just redo the whole circuit to avoid future issues. Others argue that if you can find and fix the problem without a full rewire, you save the customer money and preserve the original setup. What's your take on this? Do you lean towards replacing old systems or trying to repair them first?

3 comments

3 Comments

brian_fisher651mo ago

Tracing those wires is ALWAYS the first step. I've found that in old homes, the problem is usually just a bad connection or a worn-out switch. If the insulation is still good and the copper isn't corroded, fixing it is totally fine. But if you see any cracking or heat damage, that's when you gotta talk to the homeowner about a rewire.

rowan6581mo ago

But is heat damage always that big a deal? Sometimes a small burnt spot is just from one bad outlet, not the whole system. You might be jumping to a rewire talk too fast.

ivanross1mo ago

I mean, I get being careful with old cloth insulation, but sometimes it’s just brittle on the surface. If the copper underneath is still solid and the connection is tight now, idk if a full rewire is always the answer. Maybe it’s just me but that feels like fixing something that isn’t actually broken yet.