Carpenter Bees: Are They Damaging My North Florida Home, and How Do I Stop Them?

How do you know it’s carpenter bees?

Carpenter bees are large, robust bees that look much like bumble bees but have a shiny, mostly hairless black abdomen rather than a fuzzy one. The unmistakable sign is the damage: a perfectly round entrance hole about half an inch across, drilled into the underside of bare wood, often with coarse sawdust below and yellowish staining streaking down from the hole. You will usually see the bees hovering and chasing around eaves, deck rails, fascia, and fence posts in spring and early summer. According to the University of Florida’s profile of large carpenter bees, they favor unpainted, unfinished wood and rarely attack painted or varnished surfaces.

Do carpenter bees actually damage wood?

They do, but it is worth keeping the scale in perspective. Carpenter bees do not eat wood; a female excavates a tunnel to lay eggs, and a single new gallery is usually only a few inches long. The problem is cumulative: bees often reuse and extend the same tunnels year after year, so over multiple seasons a tunnel system can run well into a board. Several bees working the same eave or railing can cause meaningful damage over time, and the streaking they leave is unsightly. For most homes the damage is gradual rather than urgent, but it is real and worth addressing. The bees also tend to return to the same favorable wood generation after generation, so an untreated eave or railing can become a recurring hotspot that slowly worsens each spring. Catching it while it is a hole or two, and finishing the wood so it is no longer attractive, keeps a minor cosmetic issue from turning into a structural one over the years.

The woodpecker problem

One of the biggest reasons to deal with carpenter bees is what comes after them. Woodpeckers hunt the bee larvae inside the galleries and will tear open the wood to reach them, turning a tidy half-inch hole into a ragged, splintered gash. That secondary damage often far exceeds what the bees themselves would have done. So when you see fresh carpenter-bee activity, addressing it early also heads off the woodpecker damage that tends to follow. In practice, the woodpeckers are often what finally gets a homeowner’s attention, by which point both problems are in play at once — another reason not to ignore those first few neat round holes.

Are carpenter bees dangerous?

Mostly they are more intimidating than dangerous. The males are the ones that hover aggressively and dive-bomb people who get close — but males have no stinger and cannot sting at all. Females can sting, but they are docile and rarely do so unless handled directly. That makes carpenter bees a low risk to people in normal circumstances, though their territorial buzzing around a porch or deck is understandably unwelcome. As with any stinging insect, anyone with a known allergy should keep their distance.

How do you get rid of carpenter bees?

Effective control treats the galleries and then closes them off so bees can’t reuse the wood. The sequence matters: treating the active tunnels first, then sealing, prevents trapping live bees that would simply bore out elsewhere. Because the work is often high on eaves and fascia and involves stinging insects, it is a good fit for professional handling. Paul’s addresses carpenter bees and other wood-nesting stingers through its stinging insect control service, and you can get a property-specific recommendation with a free quote.

How do you keep them from coming back?

Prevention centers on denying the bare, weathered wood carpenter bees prefer. A few steps make a real difference, especially before the spring nesting season.

• Paint, stain, or varnish exposed wood on eaves, fascia, railings, and trim — finished wood is far less attractive.
• Fill and seal old holes once they are confirmed inactive, then repaint.
• Consider covering or capping vulnerable bare-wood surfaces where practical.
• Inspect eaves and decks each spring and address new activity early.

When should you call a professional?

If you are seeing multiple holes, activity returning year after year, hard-to-reach galleries high on the eaves, or signs that woodpeckers have started working the area, it is time to call a pro. A professional can treat the galleries safely, advise on sealing and finishing, and help protect the wood going forward. Catching a carpenter-bee problem while it is still a few holes is far easier than repairing extended tunnels and woodpecker damage later.

Carpenter bees vs. bumble bees: am I sure?

Carpenter bees are most often confused with bumble bees, since both are large and similarly colored, and telling them apart helps you know whether you have a wood-nesting problem at all. The clearest difference is the abdomen — the rounded rear section of the body. A bumble bee’s abdomen is fuzzy and hairy all over, usually with yellow markings, while a carpenter bee’s abdomen is shiny, smooth, and mostly bare black. Behavior and nesting differ too: bumble bees nest in the ground or in existing cavities and are not wood-borers, so they don’t drill the tell-tale round holes, while carpenter bees are the ones excavating eaves, fascia, and railings. If you are seeing big bees hovering around the structure but no holes or sawdust, you may simply have bumble bees passing through, which are valuable pollinators and not a threat to the wood. If you do see the round holes and staining, carpenter bees are the likely culprit. When you are unsure, it is worth having the activity identified before treating, because the right response depends on which bee you actually have and whether the wood is genuinely being damaged.

Frequently Asked Questions

Do carpenter bees eat wood?

No. They bore tunnels to nest but do not eat the wood. The sawdust below a hole is excavated material, not consumed wood.

Will carpenter bees sting me?

The hovering males can’t sting at all — they have no stinger. Females can sting but are docile and rarely do unless handled. Keep your distance if you have a sting allergy.

Why do I have new holes every spring?

Carpenter bees reuse and extend old tunnels and nest in nearby bare wood. Sealing inactive holes and finishing the wood discourages return.

Are carpenter bees worth treating?

Often yes, because reused tunnels and the woodpeckers they attract cause cumulative damage. Early treatment plus sealing and finishing prevents bigger repairs.

Do you serve my area?

Yes — Paul’s serves the Tallahassee and Jacksonville / Orange Park metros. For a free quote, call Tallahassee: 850-222-6808 / Jacksonville & Orange Park: 904-567-8307.

Key takeaways

• Carpenter bees bore round holes in bare wood to nest; they don’t eat it, and one season’s damage is usually minor.
• The real risks are reused tunnels over years and woodpeckers that tear open galleries hunting larvae.
• Treat the galleries, then seal and finish the wood — call 850-222-6808 for help.