10 Signs You Have a Termite Infestation (And What to Do)

Termites cause more than $5 billion in property damage across the United States every year, and none of it is covered by standard homeowners insurance. The worst part? Most homeowners do not realize they have a termite problem until significant damage has already occurred.

If you live in Alabama or anywhere in the southeastern United States, your home is in a high-risk zone for termite activity. Knowing the warning signs can be the difference between a $300 inspection and a $10,000 repair bill.

Here are the 10 most common signs that termites may already be in your home.

1. Mud Tubes on Your Foundation

Mud tubes are pencil-sized tunnels made of soil, wood particles, and termite saliva. Subterranean termites build these tubes to travel between their underground colony and the wood in your home while staying protected from open air and predators.

Check the exterior of your foundation, particularly where the foundation meets the soil. Also look inside crawl spaces, along basement walls, and around plumbing penetrations. If you find mud tubes, break off a small section and check back in a few days. If the tube is rebuilt, the colony is actively foraging.

2. Hollow-Sounding Wood

Termites eat wood from the inside out, leaving a thin veneer of wood (or paint) on the surface. Tap on wooden surfaces like baseboards, door frames, and window sills. If they sound hollow or papery instead of solid, termites may have consumed the interior.

This is especially common in areas where wood contacts or is near the ground, such as deck posts, porch supports, and the bottom of exterior door frames.

3. Discarded Wings Near Windows and Doors

Reproductive termites (called swarmers or alates) leave the colony to start new ones. After finding a mate, they shed their wings. If you find small, translucent wings clustered near windowsills, door frames, or light fixtures, it is a strong indicator that a termite colony is nearby, possibly inside your home.

In Alabama, termite swarming season typically occurs from March through May, though Formosan termites may swarm as late as June or July.

4. Bubbling or Peeling Paint

When termites feed on wood behind painted surfaces, moisture from their activity can cause paint to bubble, peel, or appear warped. This is often mistaken for water damage, but if there is no obvious water source, termites should be investigated as the cause.

Pay close attention to painted wood surfaces near the ground, including baseboards, window frames, and exterior trim.

5. Frass (Termite Droppings)

Drywood termites, which are less common in Alabama than subterranean species but still present, push their droppings out of small holes in the wood. These droppings, called frass, look like tiny pellets or sawdust and accumulate in small piles below the infested wood.

Frass is typically wood-colored and has a granular, six-sided shape when examined closely. If you find unexplained piles of what looks like fine sawdust, especially on window sills or along baseboards, drywood termites may be the cause.

6. Tight-Fitting Doors and Windows

As termites consume the wood in door frames and window frames, the structural integrity changes. This often causes doors and windows to become difficult to open or close. The wood may also warp slightly due to the moisture termites introduce as they tunnel through it.

If a door or window that previously operated smoothly suddenly sticks, and there is no seasonal humidity explanation, it is worth investigating for termite activity.

7. Sagging or Buckling Floors

Subterranean termites frequently target floor joists and subflooring, particularly in homes with crawl spaces. As the structural wood is weakened, floors may begin to sag, buckle, or feel spongy underfoot.

This sign often indicates a more advanced infestation, as significant damage must occur before the floor structure is visibly affected. If you notice floor changes, do not delay in getting a professional inspection.

8. Visible Termite Swarmers Indoors

Seeing winged termites inside your home is one of the most definitive signs of an active infestation. Swarmers are attracted to light and are often found near windows, light fixtures, and exterior doors.

Termite swarmers are sometimes confused with flying ants. The key differences:

Feature	Termite Swarmer	Flying Ant
Antennae	Straight, beaded	Bent/elbowed
Wings	Equal length, longer than body	Unequal length
Waist	Broad, no pinch	Narrow, pinched
Body	Straight-sided	Segmented

If you are unsure which you are seeing, capture one in a plastic bag and show it to a pest control professional.

9. Damaged or Crumbling Wood

In advanced infestations, wood may crumble when touched or probed with a screwdriver. This is especially common in structural areas like floor joists, support beams, and wall studs. If you can push a screwdriver into a piece of structural wood with minimal resistance, termite damage is likely.

Check wood in your crawl space, basement, and attic during routine home maintenance. These areas are often where damage is most severe and least visible.

10. Clicking Sounds in Walls

Soldier termites bang their heads against the wood or shake their bodies to signal danger to the colony. Worker termites are also noisy eaters. In quiet rooms, particularly at night, you may hear faint clicking or rustling sounds coming from inside walls where termites are actively feeding.

This sign is subtle and easy to dismiss, but if you hear it consistently in the same location, it is worth having that wall inspected.

What to Do If You Spot These Signs

Step 1: Do Not Panic, But Do Not Wait

Termite damage accumulates over months and years, not days. You have time to make a smart decision, but you should not put off getting an inspection. Every month of delay means more damage.

Step 2: Schedule a Professional Inspection

A licensed termite inspector will examine your home's foundation, crawl space, attic, and all accessible wood structures. Many pest control companies in Alabama offer free or low-cost termite inspections.

Step 3: Get a Treatment Plan and Estimate

Based on the inspection, you will receive a treatment recommendation. Common options include liquid barrier treatments, bait station systems, or a combination of both. Get quotes from multiple providers and ask about service guarantees.

Step 4: Set Up Ongoing Monitoring

After treatment, annual termite inspections and monitoring are essential in Alabama. A termite bond with your pest control provider ensures regular inspections and retreatment if termites return.

Do Not Try to Treat Termites Yourself

Unlike ants or cockroaches, termites are not a DIY pest control project. Store-bought sprays and traps are ineffective against established colonies, and improper treatment can actually scatter the colony, making the problem harder to resolve.

Professional treatment is the only reliable way to eliminate a termite infestation and protect your home from further damage.

Get Your Home Inspected

If you have noticed any of the signs described in this guide, the smart move is to get a professional inspection before the damage gets worse. Call (205) 894-7621 to schedule a termite inspection with an experienced, licensed pest control professional in Alabama.

Frequently Asked Questions

How quickly can termites damage a home?

A mature subterranean termite colony can consume approximately one foot of a 2x4 board per year. However, most homes host multiple colony entry points, and Formosan termite colonies can cause damage much faster due to their larger colony sizes, sometimes exceeding one million termites.

Can I see termites without a professional inspection?

You can sometimes see swarmer termites or discover mud tubes on your own, but worker termites operate inside wood and underground, making them nearly impossible to detect without professional tools and training. Annual inspections catch problems that visual checks miss.

Are termites active year-round in Alabama?

Yes. While swarming occurs primarily in spring, subterranean termites feed and cause damage 365 days a year in Alabama. The state's mild winters do not slow their activity significantly, which is why ongoing monitoring is critical.

How much does termite damage repair cost?

The average cost of termite damage repair in the United States is $3,000 to $5,000, but severe structural damage can exceed $10,000 to $20,000. This does not include the cost of termite treatment itself, which is why prevention and early detection are so important.

What is the difference between subterranean and drywood termites?

Subterranean termites live in the soil and build mud tubes to access wood in your home. They are the most common and destructive type in Alabama. Drywood termites live entirely inside the wood they consume and do not need contact with soil. They are less common in Alabama but are found in coastal areas.