How Does a Plumber Find a Leak in the Wall? (The 7-Step Method They Don’t Want You to Know)

That Damp Spot on Your Wall? It’s Not Just a Stain—It’s a Warning You’ve noticed a weird stain creeping up your bedroom wall. Maybe the ceiling below is dripping. Or perhaps your water bill just jumped 40%—and you haven’t changed your habits. You’re not imagining it. There’s a leak hiding inside your wall. And if…