Bought your first home? Congrats. Now let me save you from one of the most expensive surprises nobody warns you about.

Termites cause over $5 billion in property damage every year in the US alone. The worst part? Most homeowners don't notice until walls are literally crumbling.

Here are 5 early signs you can check right now — no tools needed:

1. Mud tubes on your foundation

Thin brown lines (about pencil-width) running up your foundation walls. Subterranean termites build these to travel between soil and wood. Check your basement walls and exterior foundation.

2. Hollow-sounding wood

Knock on wooden door frames, window sills, and baseboards. If it sounds hollow or papery instead of solid, termites may have eaten through the inside while leaving the surface intact.

3. Tiny holes in drywall

Pinhead-sized holes with a bit of dust below them. These are exit holes from drywood termites. Most people assume it's normal wear.

4. Discarded wings near windows

After swarming season (spring), reproductive termites shed their wings. Finding small translucent wings near windowsills or light sources is a major red flag.

5. Frass (termite droppings)

Small piles of what looks like sawdust or coffee grounds near wooden structures. This is actually termite waste — a clear sign of an active colony.

If you spot even one of these, don't panic — but don't wait either. Early detection is the difference between a $200 treatment and a $10,000 repair.

I built a full guide that walks homeowners through every room, every sign, and exactly when to call a pro. No fluff, just practical steps.