Hollow-sounding wood when tapped
Mud tubes on walls, foundations, or crawl spaces
Discarded wings near windows, doors, or light fixtures
Tiny pinholes in drywall or wood
Bubbling, peeling, or warped paint
Wood that looks blistered, damaged, or soft
Tight-fitting doors or windows that suddenly stick
Frass or pellet-like droppings near wood
Visible termite workers or swarmers indoors
Sagging floors, ceilings, or beams
Maze-like tunnels inside damaged wood
Clicking sounds coming from walls
Cracked or distorted wood surfaces
Moisture-damaged areas with unexplained wood damage
Termite activity in nearby mulch, stumps, or wood piles