Signs You Have a Termite Problem in South Florida

Mud tubes are the most reliable indicator of subterranean termite activity. Termites build these pencil-width tunnels from soil, wood particles, and saliva to travel between their underground colony and their food source while staying protected from open air. You will find them on foundation walls, crawl space piers, exterior siding, and even running up interior walls.

Termite swarmers are winged reproductive termites that emerge in large numbers to start new colonies. In South Florida, swarms typically occur in spring and early summer, often triggered by warm temperatures after rain. Swarmers are attracted to light and are frequently found near windows, doors, and light fixtures. Even if you do not see live swarmers, finding piles of discarded wings is a strong sign that a swarm has occurred nearby.

Termites eat wood from the inside out, leaving a thin outer shell that can appear normal until it collapses. Tap on baseboards, door frames, window sills, and structural beams. A hollow sound or a papery feel when pressed indicates that termites may have consumed the interior. Blistering or bubbling paint on wood surfaces can also indicate termite activity beneath the surface.

Drywood termites, which are common in South Florida attics and wood furniture, push their fecal pellets out of small kick-out holes. Frass looks like tiny piles of sawdust or coffee grounds, often found below window sills, door frames, or wooden furniture. Unlike subterranean termite frass, drywood frass is dry and granular.

As termites damage the wood in door and window frames, the structural integrity changes and frames can warp or swell. Doors and windows that suddenly become difficult to open or close, especially in areas that were previously fine, can indicate termite damage to the surrounding wood. This symptom is often mistaken for humidity-related swelling.

Advanced termite infestations can compromise the structural integrity of floor joists, ceiling beams, and support posts. Floors that feel spongy or bounce underfoot, or ceilings that appear to sag in localized areas, can indicate significant structural damage. By the time this symptom appears, the infestation has typically been active for years.

Worker termites are pale, soft-bodied, and approximately the size of a grain of rice. They avoid light and are rarely seen in the open. If you find termites under mulch, in rotting wood near your foundation, or inside your home, you are seeing a small fraction of a much larger colony. Soldier termites have large heads and mandibles and may be visible when a mud tube or piece of infested wood is disturbed.

Subterranean termites forage through soil and mulch, and wood debris near your foundation is a primary attractant. Termite activity in a nearby stump, wood pile, or thick mulch layer does not mean your home is infested, but it means the colony is close and your home is at risk. South Florida's warm, moist soil is ideal for large, aggressive subterranean termite colonies.