Termites can cause serious damage to your wooden deck without you even realizing it. These tiny pests silently eat away at the wood, and by the time you notice, the damage might already be extensive. Knowing how to spot termite damage early can save you time, money, and a lot of stress. Let’s break down everything you need to know about identifying termite damage on your wooden deck in the simplest way possible.

Why Is Termite Damage a Big Deal?
Termites don’t just nibble on wood – they devour it. A small infestation can quickly spread, weakening the structure of your deck. If left unchecked, termites can make your deck unsafe to use and incredibly costly to repair or replace. Plus, they don’t just stop at your deck; termites can eventually make their way into your home. That’s why catching the problem early is so important.
What Are Termites?
Termites are tiny insects that feed on wood and other materials containing cellulose. They usually live in colonies underground or inside wood. The two most common types you might encounter around your deck are:
- Subterranean Termites: These live in the soil and build mud tubes to travel to your deck.
- Drywood Termites: These live directly in the wood and don’t need soil contact.
Both types can cause extensive damage to wooden decks, so it’s important to recognize their presence.
Signs of Termite Damage on Your Wooden Deck
Spotting termite damage isn’t always easy, but here are some clear signs to watch out for:
1. Hollow-Sounding Wood
If you tap on your deck and it sounds hollow, termites might have eaten away the inside. This is a classic sign of termite damage.
2. Tiny Holes in the Wood
Look closely at your deck boards. If you see small, pin-sized holes, termites may have burrowed inside.
3. Blistered or Bubbling Wood
Wood that looks swollen or has bubbles could mean termites are tunneling underneath the surface.
4. Mud Tubes
Subterranean termites create mud tubes to travel between their colony and the wood. These tubes look like small dirt tunnels along the ground or on the side of your deck.
5. Discolored or Warped Wood
Termites often leave behind moisture as they chew through wood. This can cause discoloration or make your wood look warped.
6. Piles of Frass
Frass is termite droppings that look like tiny wood-colored pellets. If you see these near your deck, termites are likely nearby.
7. Winged Termites or Wings
During certain times of the year, you may notice flying termites (called swarmers) around your deck. They shed their wings, so finding discarded wings near your deck is another warning sign.
How to Inspect Your Wooden Deck for Termites
Regular inspections can help you catch termite problems early. Here’s how to check your deck:
- Start with the Deck Boards
Look for cracks, holes, or soft spots. Tap the boards to see if they sound hollow. - Check the Underside
If you can access the bottom of your deck, inspect the joists and beams for mud tubes, frass, or damaged wood. - Inspect Nearby Soil
Subterranean termites come from the ground, so look for mud tubes or activity in the soil around your deck. - Look for Signs During the Day
Termites avoid light, so they might not be visible at night. Inspect your deck during daylight hours when you can see better.
Preventing Termite Damage
Once you know how to spot termite damage, the next step is prevention. Here are some simple ways to protect your deck:
1. Keep Your Deck Dry
Termites are attracted to moisture, so make sure your deck stays as dry as possible. Fix any leaks, and ensure proper drainage around your deck.
2. Use Treated Wood
Pressure-treated wood is less appealing to termites. If you’re building a new deck or replacing parts of an old one, opt for treated wood to reduce the risk.
3. Seal Your Deck
Applying a protective sealant can help keep moisture out of your wood, making it less inviting for termites.
4. Clear Debris
Don’t let leaves, woodpiles, or other debris accumulate near your deck. These can attract termites and give them a hiding place.
5. Regular Maintenance
Inspect your deck often and address any damage as soon as possible. Replace broken boards or loose fasteners promptly to prevent termites from spreading.
What to Do If You Find Termite Damage
If you spot termite damage on your deck, don’t panic. Here’s what to do:
- Confirm the Problem
If you’re unsure whether termites are the culprit, call a professional to inspect your deck. They can identify the type of termites and assess the extent of the damage. - Remove Infested Wood
Damaged wood can’t be saved. Remove any infested boards or beams and replace them with new ones. - Treat the Area
Professional termite treatments, like liquid barriers or bait systems, can eliminate termites and prevent future infestations. - Reinforce the Deck
If the damage is extensive, you may need to reinforce or rebuild parts of your deck to ensure it’s safe to use.
Why Hire Riverview Decks?
Dealing with termite damage can feel overwhelming, but Riverview Decks is here to help. Our experienced team specializes in deck repair and replacement, ensuring your outdoor space is safe, beautiful, and termite-free. From inspecting for signs of damage to replacing infested boards, we’ll handle every step with care and expertise.
FAQs About Termite Damage on Wooden Decks
1. How often should I inspect my deck for termites?
It’s a good idea to check your deck for signs of termites at least twice a year, especially in spring and summer.
2. Can I treat termites myself?
While DIY treatments are available, professional termite control is usually more effective, especially for large infestations.
3. How can I tell the difference between water damage and termite damage?
Water damage typically causes wood to rot and crumble, while termite damage leaves tunnels and hollowed-out sections inside the wood.
4. Does insurance cover termite damage?
Most homeowner’s insurance policies don’t cover termite damage, so regular inspections and maintenance are key.
5. Can termites return after treatment?
Yes, termites can return if preventive measures aren’t taken. Regular inspections and treatments can help keep them away.

Protect Your Deck with Riverview Decks
Termite damage doesn’t have to ruin your wooden deck. With regular inspections and quick action, you can stop termites in their tracks and keep your deck looking and functioning its best. If you’ve spotted signs of termite damage or want to ensure your deck is protected, Riverview Decks is here to help.
Our team offers professional deck repair, replacement, and maintenance services in Sevierville and beyond. We’ll restore your deck and help you enjoy your outdoor space without worry. Contact Riverview Decks today at (865) 801-4545 to schedule your consultation! You can also get in touch today, and let’s upgrade your space!