How Do I Check for Termite Damage in the Florida Keys?

1. Look for Mud Tubes Along the Foundation

Mud tubes are one of the most recognizable signs of subterranean termites.

These narrow tunnels are made from soil and other materials and allow termites to travel between their underground colonies and the wood they feed on while maintaining a protected environment.

Check accessible areas around:

• The foundation and exterior walls
• Garage door frames and thresholds
• Plumbing penetrations
• Wooden posts and structural supports
• Areas where soil, mulch or landscaping meets the building

Mud tubes are strong evidence of subterranean termite activity, although their presence alone does not establish the extent of damage or whether the colony is still active.

Do not simply remove the tubes and assume the problem is solved. Have a pest-control professional investigate the source and assess any associated damage.

2. Check for Tiny Pellets and Small Holes in Wood

Drywood termites live inside the wood they infest and do not need contact with the soil.

One common warning sign is a small pile of hard, granular pellets beneath wooden trim, furniture, window frames or other wood surfaces. These pellets are termite droppings, often called frass, and may resemble fine sand or sawdust.

Look for:

• Small piles of uniform pellets
• Tiny holes in wood where pellets may be expelled
• Damaged wooden trim or cabinetry
• Discarded wings near windows and doors
• Wood that appears damaged beneath an otherwise intact surface

The absence of pellets does not rule out an infestation. Some evidence is difficult to see, particularly when termites are inside walls or other inaccessible areas.

Source: University of Florida IFAS: West Indian Drywood Termite.

3. Look for Hollow, Blistered or Weak Wood

Termites can consume wood internally while leaving a thin outer layer that makes the surface appear relatively normal.

During a property walkthrough, pay attention to wood that looks blistered, peeling, distorted or unusually deteriorated.

Potentially affected areas include:

• Door and window frames
• Baseboards and interior trim
• Exposed roof framing
• Attic timbers
• Wooden stairs and decks
• Cabinets and built-in furniture

A hollow sound when wood is gently tapped can be a warning sign, but it is not proof of termite damage. Other conditions can also cause wood to sound hollow.

Avoid aggressively probing structural members yourself. A professional can determine whether the wood is damaged and whether a structural evaluation is needed.

4. Inspect Areas With Moisture Problems

Dampwood termites are associated with wood that remains very wet. Persistent moisture can also contribute to wood decay and create conditions that make a property more vulnerable to other problems.

In the Florida Keys, pay attention to:

• Roof or plumbing leaks
• Poor drainage near the house
• Damp crawlspaces or enclosed areas
• Leaking air-conditioning condensate lines
• Wood in direct contact with soil
• Damaged exterior trim exposed to repeated wetting

Moisture damage and termite damage are not the same thing, but they can occur together.

A home inspector can help identify visible moisture concerns, while a pest-control specialist can determine whether termites are present.

Source: UF/IFAS: Termite Prevention and Control.

5. Check for Swarmers and Discarded Wings

Winged reproductive termites, often called swarmers, leave established colonies to form new ones.

You may notice them near windows, doors or exterior lights, particularly during seasonal swarming periods.

Discarded wings can also collect on windowsills or near entry points.

However, finding a single winged termite indoors does not automatically prove that the home is infested. Some insects may enter from outside. Repeated swarms or wings appearing in several areas of the home deserve further investigation.

If possible, photograph the insects or collect a specimen in a sealed container for identification by a pest-control professional.

Source: UF/IFAS: Termite Season in Florida.

6. Hire a Professional Termite Inspector Before Closing

If you're purchasing a home, a professional termite inspection can provide information that a general home inspection may not.

Ask the pest-control company to clarify whether its inspection covers evidence of active termites, previous damage and other wood-destroying organisms, and whether inaccessible areas limit the assessment.

Request a written report describing:

• Evidence of active infestation, if found
• Visible signs of previous termite damage
• Areas that could not be inspected
• Recommended treatment or additional evaluation
• Available treatment warranties or service agreements

In Florida, pest-control businesses and relevant services are regulated by the Florida Department of Agriculture and Consumer Services. Verify the provider's credentials and ask about experience with termite inspections in coastal homes.

Official resource: Florida Department of Agriculture and Consumer Services: Pest Control and Termites.

7. What If Termite Damage Is Found During the Inspection?

Finding termite evidence does not automatically mean you should abandon the purchase. The important questions are whether the infestation is active, how extensive the damage is and what repairs or treatment will be required.

Before closing, consider obtaining:

• A professional assessment of the infestation
• A written treatment proposal
• An estimate for replacing damaged wood
• A structural evaluation if load-bearing components may be affected
• Documentation of previous treatments and warranties

You may be able to negotiate treatment, repairs or a price adjustment, depending on your purchase contract and applicable deadlines.

Treatment alone does not repair structural damage. If termites have weakened framing or other load-bearing components, a qualified contractor or structural professional may need to evaluate the repairs.

8. Does Homeowners Insurance Cover Termite Damage?

Generally, homeowners insurance does not cover termite damage because it is typically considered a maintenance issue or preventable deterioration.

The Florida Department of Agriculture and Consumer Services recommends termite prevention, inspection and professional treatment because the damage can be substantial.

Before purchasing a property with a known infestation, review your insurance policy and ask your insurer about applicable exclusions. Do not assume that a standard homeowners policy will pay for treatment or repairs.

Source: Florida Department of Agriculture and Consumer Services: Termites.

9. How Can You Reduce the Risk of Termite Damage?

You cannot eliminate all termite risk, but you can make your property less attractive and easier to inspect.

• Keep wood and other cellulose materials away from direct soil contact where practical.
• Remove discarded lumber, cardboard and wood debris near the house.
• Fix roof, plumbing and drainage leaks promptly.
• Keep landscaping and mulch from concealing the lower edges of exterior walls.
• Maintain accessible inspection space around the foundation where the construction allows it.
• Keep shrubs and tree branches from touching the roof or exterior walls.
• Arrange periodic inspections with a qualified pest-control professional.

For Florida Keys homes, controlling moisture and maintaining the building envelope are particularly important because humidity, storms and saltwater exposure can accelerate other forms of deterioration as well.

Termite damage can be difficult to spot, and a home may look well maintained while hidden wood damage remains undiscovered.

When buying in the Florida Keys, look for mud tubes, termite pellets, discarded wings, hollow wood and moisture problems. But don't rely on a visual walkthrough alone.

My advice is to obtain a professional termite inspection before closing, investigate any signs of damage and get repair estimates before deciding how to proceed. Understanding the condition of the structure now can help you avoid unexpected repair costs later.