Carpenter Bee Control in Illinois
We treat bored galleries and protect your wood from further damage.
Licensed, Insured & Locally Owned — Serving Illinois Since 1980
Every spring, large bees start hovering around Illinois eaves, decks, and pergolas — dive-bombing anyone who walks by. Those are carpenter bees: they don’t eat wood like termites, but females bore perfectly round tunnels into it to lay their eggs, and year after year the galleries grow longer, weakening trim, fascia, and railings.
Dependable Pest Control has handled carpenter bees across Illinois since 1980. Our licensed technicians treat active galleries, address the conditions attracting them, and help you protect exposed wood so new bees don’t move in next spring.
Holes in your wood? Let’s stop them.
CALL +1 (833) 425-2058Signs of Carpenter Bees Around Your Home
Carpenter bees leave unmistakable evidence:
Perfect round holes
Nearly 1/2-inch diameter, perfectly round entry holes in eaves, fascia, decks, railings, and outdoor furniture.
Sawdust piles
Coarse sawdust (frass) on surfaces below the holes — fresh piles mean active boring.
Hovering males
Large bees hovering and darting at people near the holes — that’s the male guarding the nest. Males can’t sting.
Staining below holes
Yellowish-brown staining on siding or trim beneath entry holes from bee waste.
Woodpecker damage
Woodpeckers tear into wood to eat carpenter bee larvae — ragged holes mean the problem has escalated.
Returning each spring
Old galleries get reused and extended year after year — damage compounds if ignored.
Carpenter Bees vs Bumblebees vs Termites
Carpenter bees
Large, with a shiny black hairless abdomen. Bore tunnels into wood to nest. Females can sting but rarely do; males can’t sting at all.
Bumblebees
Fuzzy all over, including the abdomen. Nest in the ground or cavities — they don’t damage wood. Beneficial pollinators, not a structural pest.
Termites
Eat wood from the inside out, silently. Carpenter bees excavate galleries but don’t consume the wood. Both damage structures — both deserve professional attention.
Not sure which you have? Our free inspection identifies the pest before any work begins.
Our Carpenter Bee Control Process
Inspection
We find active galleries (fresh sawdust tells us what’s current), assess the extent of boring, and check for woodpecker follow-on damage.
Treat the galleries
Professional-grade treatment applied directly into bored tunnels — reaching the bees inside where surface sprays never go.
Seal and repair guidance
Once activity has ended, galleries should be plugged and sealed so they aren’t reused — we advise on timing and materials.
Protect the wood
We show you how to make wood less attractive: painting or staining exposed wood, replacing badly damaged trim, and spring monitoring.
Stop the boring before it spreads.
CALL +1 (833) 425-2058Why Professional Carpenter Bee Control Matters
- ✓Surface sprays never reach bees inside the galleries — treatment must go into the tunnels
- ✓Plugging holes while bees are still active traps them and forces new exit holes
- ✓Old galleries get reused and extended every spring — untreated damage compounds yearly
- ✓Woodpeckers tear apart wood hunting larvae — stopping bees early prevents that secondary damage
Preventing Carpenter Bees Around Your Illinois Home
Paint or stain exposed wood
Carpenter bees strongly prefer bare, weathered wood. A good coat of paint or stain is the best deterrent.
Fill old holes
Plug abandoned galleries in late fall so new queens can’t reuse them next spring.
Replace damaged trim
Badly tunneled wood keeps attracting bees — replacement breaks the cycle.
Watch each spring
Early spring is when new boring starts. Catching it early keeps galleries short and damage minor.
Commercial Carpenter Bee Control
Log structures, restaurants with wooden decks and pergolas, HOAs, and commercial properties with exposed timber across Illinois take carpenter bee damage every spring. We provide inspection and treatment programs that protect structural and decorative woodwork — scheduled before peak boring season.
Frequently Asked Questions About Carpenter Bee Control
Do carpenter bees sting?
Males — the ones aggressively hovering around you — cannot sting at all. Females can sting but rarely do; they’re focused on boring, not defending. Still, don’t handle them.
How is carpenter bee damage different from termites?
Carpenter bees excavate tunnels but don’t eat the wood; termites consume it from the inside out. Bee damage is visible (round holes, sawdust); termite damage hides until it’s severe. Both need professional treatment.
When are carpenter bees active in Illinois?
Spring — typically April through June — when females bore new galleries and males hover guard. Activity drops off by midsummer.
How do I tell carpenter bees from bumblebees?
Look at the abdomen: carpenter bees have a shiny black hairless abdomen; bumblebees are fuzzy all over. Carpenter bees also hover around wood structures; bumblebees stick to flowers.
Can I just plug the holes myself?
Not while bees are still active — trapped bees chew new exit holes, often in worse spots. Holes should be treated first, then plugged after activity ends. We handle the timing.
Will they come back next year?
They can — old galleries attract new queens. That’s why sealing old holes and painting exposed wood matters. Our treatment plus prevention breaks the cycle.
Are your treatments safe around kids and pets?
Yes — treatments go directly into the galleries, not broadcast across your yard. We’ll explain everything before we start.
Is your carpenter bee work guaranteed?
Yes — backed by our satisfaction guarantee.
Protect your wood this spring.
Call now for a free inspection — or request one online.
CALL NOW: +1 (833) 425-2058 Get a Free Inspection