Written from our field experience coating and restoring cedar homes across Lexington and the Bluegrass.
You hear it before you see it. A rapid hammering at first light, coming from the side of the house, and by the time you get outside there is a fresh row of holes punched into your cedar. It is one of the more maddening problems a cedar home can throw at you, because the culprit flies away and comes right back. Here is how we would talk you through it if David were standing in your yard looking at the damage with you.
The Short Answer
Woodpeckers drill cedar siding for one of three reasons, and the fix depends on which one you have. The three drivers are food, meaning insects living in the wood, nesting cavities for shelter, and drumming to claim territory and attract a mate. If it is food, you have a bug problem behind the siding, very often carpenter bees, and repair has to start there or the birds keep coming back. Deter them humanely and legally, deal with any insects, repair the holes, and then restore and protect the cedar. In most cases you do not need to tear off and replace all your cedar.
Here is the quick version of why they peck:
- Food. They hear or smell insect larvae in the wood and drill to eat them.
- Nesting. They excavate a larger, rounder cavity to roost or raise young.
- Drumming. They hammer a loud, resonant spot to announce territory and find a mate.
Each of those needs a slightly different response, so the first real job is figuring out which one is happening on your wall. Let us break that down.
Why Woodpeckers Chose Your Cedar (Diagnose First)
Cedar homes are some of our favorites to restore, and woodpecker damage is a big reason we get called out to them across the Bluegrass. The pattern we see most often is a homeowner who has patched the same holes twice, watched the birds return, and started to wonder whether the whole wall is doomed. It usually is not. But you cannot fix the problem until you know what is driving it, so start by reading the damage.
Food (the One You Really Need to Catch)
This is the most important cause to identify, because it means something is already living in your wood. Woodpeckers are foraging when they drill a cluster of small, shallow, irregular holes, often following a line or a seam where insects have tunneled. They are not being random. They are hunting.
In our region the usual suspect is the carpenter bee. Carpenter bees bore clean, round, roughly half-inch holes into soft, unpainted, or weathered wood, especially fascia, trim, and the underside of eaves. Their larvae sit just inside those tunnels, and to a woodpecker that is a meal worth tearing the wood open for.
Researchers at the Cornell Lab of Ornithology have documented exactly this, woodpeckers ripping into fascia boards to reach carpenter bee larvae. Their guidance on why woodpeckers hammer on houses is worth reading, and you can find it here. The takeaway for you is blunt. If you see carpenter bee holes and sawdust near where the woodpecker is working, the bird is a symptom. The bees are the disease.
Nesting and Roosting Cavities
The second reason is shelter. A woodpecker looking to roost or nest excavates a single larger hole, usually round and a couple of inches across, sometimes with a deeper cavity behind it. Soft, older cedar is a prime target because it is easy to work.
These holes look different from foraging damage. Instead of a scattered cluster of small pits, you get one deliberate opening, often high on the wall, under an eave, or in a corner board where the bird feels sheltered. Spring is the busy season for this, when pairs are hunting for a place to raise young.
Nesting-driven pecking is the case where a well-placed nest box can genuinely help, because it offers the bird an easier option than carving one out of your siding. More on that in the deterrence section.
Drumming for a Mate
The third reason is pure noise. Drumming is a fast, loud, repetitive tapping that a male uses to stake out territory and attract a mate. It is not about eating, and it is not really about making a hole, though a resonant spot can get chewed up over time.
Woodpeckers love a surface that rings. Dry cedar shakes and shingles, hollow trim, metal gutters, chimney flashing, and downspouts all make satisfying drumming posts. That is why the same spot on your house gets hit morning after morning during breeding season. The bird has decided your wall is a good amplifier.
The upside is that drumming damage is often the least severe, since the bird wants sound, not a cavity. The downside is that it is the most stubborn to break, because you are competing with the acoustics of the wall itself.
Deter Them Humanely and Legally
Before you do anything, understand the rule that catches a lot of frustrated homeowners off guard. Woodpeckers are federally protected under the Migratory Bird Treaty Act. You cannot trap, harm, or kill them without a permit from the U.S. Fish and Wildlife Service. So the only path is humane, non-lethal deterrence, and honestly, that is the path that actually works long term anyway.
The catch with deterrents is that no single one is reliable on its own. Birds get used to a stationary plastic owl within days. The methods that hold up are the ones you layer together and put up early, before the bird has decided your wall is home. In the Cornell Lab’s testing of common deterrents, reflective scare tape came out as the most effective, but even that was not foolproof by itself.
Here is what tends to help, and which situations each suits:
A few practical notes from the field. Hang reflective tape in long twisted strips so the wind keeps it moving. If you use netting, stand it out about three inches from the wall so the bird cannot simply peck through it, and run it from the eave down over the problem area. And whatever you choose, move and vary the decoys, because a woodpecker that stops being scared is worse than no deterrent at all.
Deal With the Insects (or the Birds Come Back)
This is the step people skip, and it is the reason the same holes reopen a month later. If the pecking is food-driven, the woodpecker is telling you there is an insect buffet in your wood. Patch the holes without removing the food, and the bird just drills fresh ones right beside your repair.
So if you are seeing carpenter bee holes, sawdust, or a foraging pattern, get the home inspected and treated by a pest professional for carpenter bees, and for ants or wood-boring beetles if those turn up too. Treating the insects is what actually makes your house boring to a woodpecker.
There is a moisture angle here that matters for the long haul. Wood-boring insects are drawn to damp, softening, decaying wood far more than to sound, dry, sealed wood. Cedar that has lost its finish and started to weather is exactly the kind of wood that invites them in. If parts of your siding or trim are soft or showing early decay, that is a standing invitation, and it is worth understanding how wood rot gets started so you can cut off the conditions that feed the whole cycle.
The order is the point. Deter the birds, de-bug the wood, and only then move on to repair and restoration. Skip a step and you are just feeding the loop.
How to Repair Woodpecker Holes in Cedar
Once the birds are being deterred and any insects are handled, you can repair the damage. How you patch depends on the size of the hole. Match the wood and the finish as closely as you can so the repairs disappear into the wall.
Small Holes
For the small foraging pits and pea-sized holes, exterior-grade wood filler or a two-part epoxy wood filler is the right tool. Clean out any loose debris and insect frass first, pack the filler in, and let it cure fully.
Then sand it flush and finish it to match the surrounding cedar. Epoxy is the tougher choice for holes that see weather, since it flexes and bonds better than a basic filler and will not shrink and pop out the first wet season.
Large Holes or Splits
Bigger nesting cavities and splits need more than filler. For a large hole, the cleanest fix is to cut a matching cedar plug, glue and set it, then blend and finish it. When a board is badly torn up or split through, replacing that section of siding is the honest answer.
For spots that keep getting hit despite deterrents, a piece of fine hardware cloth or mesh set over the repair can stop the bird from reopening it while your other deterrents do their work. If you are looking at widespread damage, multiple cavities, or a lot of board replacement, that is the point to bring in a pro rather than fighting it a hole at a time.
How to Restore and Protect Your Cedar (the Option Competitors Skip)
Here is where most advice online leaves you with a bad choice. On one side are the DIY guides that get you to a patched wall and stop. On the other are the siding companies whose answer to woodpecker damage is to tear off all your cedar and sell you fiber cement or steel. Rip-and-replace is a big, expensive swing at a problem that usually does not require it.
There is a third option, and it is the one we are built for. Once the birds are deterred and the bugs and holes are handled, you can restore the cedar you already have to a clean, uniform finish and protect it going forward. You keep the look you paid for, and you skip the cost and mess of a full tear-off.
What we do on those cedar homes is coat them with a tough, high-build, breathable ceramic coating. Let us be clear about what that is, because it is not paint. You can read the full explanation of what ceramic coating actually is, and see how we approach cedar and other wood siding specifically.
The coating goes on roughly 8 to 10 times thicker than standard exterior paint, built up with ceramic microspheres in a formula that is around 80 percent solids. That thickness lays down a genuine sealed surface over your repairs, blending patched holes and new cedar into one even finish instead of a patchwork.
It is breathable, which matters on wood. It blocks liquid water from soaking into the cedar while still letting moisture vapor escape from the wood, so you are sealing water out without trapping dampness in. That is the exact combination that keeps cedar from staying wet, softening, and inviting the borers that started this whole problem.
It also holds up. The coating is UV-resistant, resists peeling, cracking, chalking, fading, and mildew, and carries a 25-year transferable warranty. It is engineered to last 25 years or more, against the 5 to 7 years you typically get from exterior paint. On a cedar home, that is the difference between restaining every few years and being done with it.
The Honest Part About Woodpeckers and Coatings
We are not going to tell you a coating is woodpecker-proof, because no finish is. A determined bird can still drum on a resonant wall or peck a coated surface, and drumming in particular is about acoustics, not about your finish. Anyone who promises to bird-proof your house with a coating is overselling.
What a tough, sealed, breathable surface honestly does is remove some of the conditions that make cedar attractive in the first place. Sound, dry, sealed wood resists the moisture and decay that draw wood-boring insects, and fewer insects means less of the food-driven drilling that causes the worst damage. That is a real benefit, stated straight, without pretending the coating is a scarecrow.
So the sequence stays the same. Deter the birds, deal with the insects, repair the holes, and then restore and protect the cedar. The coating is the last step that makes the repair last and the wall look right again, not a substitute for the first three.
When to Call Rhino Shield of Cincinnati and Kentucky
If you have woodpecker damage on cedar in Lexington or anywhere in the Bluegrass, and you have gotten the birds and any bugs under control, we can help you restore and protect the wood instead of replacing it. That is the honest role we play here. We are the coating crew, not a pest company or a bird service, so the deterrence and de-bugging come first, and then we come in.
David comes out and assesses the cedar himself. He checks for soft spots and insect damage, talks through which repairs need to happen before anything is coated, and gives you a straight read on whether restoration makes sense for your home. Our own cedar work, including a clean multi-day cedar siding job we did in the area, is the kind of experience behind that assessment.
The assessment is free and low-pressure. Request your free assessment here, or learn more about our work across the region on our Lexington location page.
Frequently Asked Questions
Why are woodpeckers drilling holes in my cedar siding?
For one of three reasons: food, nesting, or drumming. If the holes are small, clustered, and follow a seam, the bird is foraging for insects in the wood, very often carpenter bee larvae. A single larger, rounder hole usually means the bird is excavating a nesting or roosting cavity. Fast, loud, repetitive tapping on a resonant spot is drumming to claim territory and attract a mate. Soft, weathered cedar is attractive for all three, which is why cedar homes get hit so often.
Do woodpecker holes mean I have insects in my siding?
Often, yes, especially when the holes are small, shallow, and clustered rather than a single clean cavity. Woodpeckers foraging on siding are usually hunting insect larvae in the wood, and in our region that most commonly points to carpenter bees. If you also see round half-inch bee holes, sawdust, or bees hovering near the eaves and fascia, treat that as confirmation. In those cases the insects have to be dealt with, or the birds will keep drilling no matter how many holes you patch.
How do I stop woodpeckers humanely?
Layer several humane deterrents and put them up early. Reflective scare tape hung in loose, twisting strips tends to work best, supported by shiny moving objects, predator decoys that you reposition often, and bird netting held a few inches off the wall on persistent spots. For nesting-driven pecking, offering a nest box can redirect the bird away from your siding. No single method is foolproof, so combining them and acting before the bird settles in gives you the best odds.
Are woodpeckers protected by law?
Yes. Woodpeckers are federally protected under the Migratory Bird Treaty Act, so it is illegal to trap, harm, or kill them without a permit from the U.S. Fish and Wildlife Service. That is why every legitimate solution focuses on humane, non-lethal deterrence rather than removal. It is not just the ethical route, it is the legal one, and in practice the layered deterrence approach is what actually solves the problem long term.
How do I repair woodpecker holes in cedar siding?
Match the repair to the hole size, and only after the birds and any insects are handled. Fill small holes with exterior-grade wood filler or two-part epoxy, then sand flush and finish to match. For large nesting cavities, cut and set a matching cedar plug, and for badly split or torn boards, replace that section of siding. A piece of fine mesh over a repeat spot can keep the bird from reopening your repair while your deterrents do their job.
Do I have to replace cedar siding damaged by woodpeckers?
Usually not. A full tear-off and replacement is a costly swing that most woodpecker damage does not call for. In the great majority of cases you can deter the birds, treat any insects, repair the holes, and then restore the cedar you already have. Coating the repaired cedar with a tough, breathable ceramic finish brings the wall back to a uniform look and seals the wood against the moisture and decay that attract wood-boring insects, so you keep your cedar instead of losing it.
