One obvious hole in one shingle
A single round or ragged hole with the surrounding shingles still lying flat and looking mostly dry.
Start here: Check whether the damaged cedar shingle is still solid or has gone soft around the hole.
Animal damage on exterior siding
Woodpecker Hole in Cedar Shingles
Direct answer: A woodpecker hole in cedar shingles is often more than a cosmetic peck mark. If the hole is clean and the surrounding shingles are still hard, you can usually replace the damaged cedar shingle and watch the area. If the wood feels soft, sounds hollow, or you see frass, staining, or repeated pecking, treat it like a clue that insects or moisture are behind the siding.
Most likely: Most often, the real problem is localized cedar shingle damage, but repeated holes usually mean the bird is finding food in damp or insect-damaged wood.
Start by figuring out whether you have one damaged shingle or a bigger wall-envelope problem. Reality check: a woodpecker usually doesn’t keep drilling the same wall section for no reason. Common wrong move: patching the face and ignoring soft sheathing or insect activity behind it.
Don’t start with: Don’t start by smearing caulk into the hole or painting over it. That hides the clue and traps moisture without fixing what drew the bird there.
Single clean hole, solid woodPlan on a localized cedar shingle repair after you confirm the wall behind it is dry and firm.
Multiple holes, soft spots, or debrisSlow down and inspect for insects, rot, or water entry before replacing anything.
Last reviewed: 2026-04-21
What kind of woodpecker damage are you looking at?
Several holes in the same wall area
More than one peck mark, often clustered near a corner, window, or damp-looking section.
Start here: Look for insect debris, moisture staining, or soft sheathing behind the cedar shingles.
Hole with staining or dampness below
Dark streaks, swollen wood, peeling finish, or a musty smell near the damaged area.
Start here: Treat this as possible water intrusion first, not just bird damage.
Hole with sawdust-like debris or insect signs
Fine debris, ant activity, hollow-sounding wood, or flakes coming out of the opening.
Start here: Check for carpenter ants, other insects, or decayed wood before doing a cosmetic repair.
Most likely causes
1. Localized cedar shingle damage from pecking
A bird can punch through one weathered or thin cedar shingle even when the wall behind it is still sound.
Quick check: Press gently around the hole with a screwdriver handle or awl. If the shingle is damaged but still firm and dry, the repair may stay local.
2. Insect activity behind the cedar shingles
Woodpeckers often go after carpenter ants or other insects living in damp wall cavities or softened wood.
Quick check: Look for frass, ant trails, repeated holes in one area, or hollow-sounding wood when you tap nearby shingles.
3. Moisture intrusion softening the wall behind the siding
Wet sheathing and damp cedar are easier for birds to break into and often show staining, swelling, or recurring damage.
Quick check: Check below and around the hole for dark staining, loose shingles, soft edges, or nearby flashing problems at windows and roof-wall joints.
4. Hidden rot in cedar shingles or sheathing
Older cedar can decay from the back side first, leaving a face that looks decent until it gets pecked through.
Quick check: Probe the hole edge and the shingle butt. If the wood crushes easily or flakes apart, you likely have decay, not just surface damage.
Step-by-step fix
Step 1: Map the damage before you touch the wall
You want to separate a one-shingle repair from a moisture or insect problem before you cover the evidence.
- Stand back and look for one isolated hole versus a cluster of holes in the same section.
- Check whether the damage is near a window, corner board, roof-wall intersection, or any flashing detail.
- Look for dark staining, lifted shingle edges, soft-looking wood, insect debris, or droppings below the hole.
- Take a few photos before removing anything so you can compare later if the bird comes back.
Next move: If it clearly looks isolated and the surrounding shingles look dry and flat, move to a hands-on check. If you already see staining, repeated holes, or obvious softness, assume there may be hidden damage behind the cedar shingles.
What to conclude: A clean isolated hit usually stays local. Repeated or damp-looking damage usually points to a source problem that needs more than a patch.
Stop if:
- The wall area feels loose or bulged outward.
- You see active insect movement coming from the hole.
- There is obvious water entry into the wall or interior staining inside the house.
Step 2: Check whether the cedar is solid or rotten
Cedar shingles can look decent from the street and still be soft from the back side. A quick probe tells you whether replacement is enough.
- Use an awl or small screwdriver to probe the hole edge, the lower butt of the damaged cedar shingle, and one or two neighboring shingles.
- Tap around the area with a screwdriver handle and listen for a solid sound versus a hollow, papery sound.
- Press lightly on the shingle face. Sound cedar feels firm; decayed cedar crushes, flakes, or dents too easily.
- If the hole is low enough to reach safely, check whether the fastener area feels intact or the shingle is splitting around it.
Next move: If the damaged shingle and the nearby shingles are firm and dry, the repair is likely limited to replacing the damaged cedar shingle. If the wood is soft, hollow, or crumbling, plan on opening the area enough to inspect the layer behind the siding.
What to conclude: Firm cedar supports a localized siding repair. Soft cedar means the bird probably found weakened material, not just a random target.
Step 3: Look for insect clues before you replace the shingle
If insects are the attraction, a new cedar shingle alone may just become the next target.
- Check the hole and the course below it for fine frass, ant parts, or repeated small openings.
- Watch the area for a few minutes during warm weather for carpenter ant traffic.
- Look behind any loose shingle edge you can safely lift slightly without tearing it apart.
- If you find ant debris or clear insect activity, pause the siding repair and address that problem first.
Next move: If you find no insect signs and the wood is solid, you can stay on the cedar shingle repair path. If you find frass, ants, or hollow wood behind the siding, the wall needs a deeper inspection and likely pest treatment before finish repair.
Step 4: Check nearby flashing and water paths
Cedar shingles near leaking trim, window heads, or roof-wall joints often stay damp enough to attract insects and birds.
- Inspect the area above the hole, not just the hole itself, for failed joints, open laps, or bent flashing.
- Pay close attention if the damage is under a window, beside trim, or where a roof meets the wall.
- Look for water stains, algae streaks, swollen trim, or shingles that stay darker than the surrounding wall.
- If the damage lines up with a known leak point, treat the moisture source as the first repair priority.
Next move: If the surrounding wall is dry and the flashing details look sound, you can move ahead with a localized cedar shingle replacement. If you find signs of leakage, fix the water-entry issue before closing up the siding area.
Step 5: Repair the confirmed damage and monitor the spot
Once you know whether the problem is local or deeper, you can make the right repair instead of hiding it.
- If the damage is limited to one or a few solid cedar shingles, remove and replace the damaged cedar shingles with matching exposure and thickness.
- If the cedar shingles came off and the sheathing behind them is soft or rotten, stop at temporary weather protection and arrange a proper wall repair.
- If the wall is dry and sound after replacement, watch the area over the next few weeks for renewed pecking, staining, or insect activity.
- If birds keep returning to the same section after the wall is confirmed sound, use a non-damaging visual deterrent and keep checking for hidden insect activity you may have missed.
A good result: If the new cedar shingles stay dry, flat, and untouched, you likely solved a localized damage issue.
If not: If new holes appear or the wall shows moisture or insect signs again, open the area further or bring in a siding contractor or pest pro for a targeted inspection.
What to conclude: Successful repair means the bird hit a weak spot once. Repeat damage means the wall is still offering food, moisture, or hollow space.
Replacement Parts
Repair Riot may earn a commission from qualifying purchases, at no extra cost to you.
FAQ
Can I just fill a woodpecker hole in cedar shingles with caulk?
Not as a first move. Caulk may hide the opening, but it does not tell you whether the cedar shingle is rotten, the sheathing is wet, or insects are behind the wall. If the damage is truly limited to one solid shingle, replacement is the cleaner repair.
Why do woodpeckers go after cedar shingle siding?
Usually because the area is easy to break into or there is food behind it. Damp wood, insect activity, and hollow or decayed spots are common reasons. Sometimes a bird is drumming, but repeated holes in one section deserve a closer look.
How do I know if the damage is just cosmetic?
Probe the cedar shingle and the ones next to it. If the wood is firm, dry, and not hollow-sounding, and there are no stains or insect signs, the damage is often localized. Soft wood, repeated holes, or debris coming out of the opening means it is not just cosmetic.
Should I worry about water getting in through the hole right away?
Yes. Even a small opening in cedar siding can let water reach the layer behind it. If you cannot replace the damaged cedar shingle immediately, cover the area temporarily so rain does not get driven into the wall.
When should I call a pro for a woodpecker hole in cedar shingles?
Call a pro if you find soft sheathing, repeated bird damage, active insects, interior staining, or damage tied to a window, trim detail, or roof-wall flashing. Those are the cases where the hole is usually just the visible symptom.