If you live in Calgary, you may have noticed small round holes appearing on your siding, fascia, or stucco. While they might look harmless at first, these are often caused by woodpeckers—and they can lead to serious structural damage if left untreated.

At Pest Pro Exterminator Calgary, we’ve seen how quickly a minor woodpecker issue can turn into costly repairs for homeowners across SW, NW, SE, and NE Calgary.

🔍 Why Woodpeckers Attack Homes in Calgary

Woodpeckers aren’t randomly damaging your home—they’re usually after something:

• 🐛 Insects inside your walls (carpenter ants, beetles, larvae)

• 🪵 Soft or rotting wood siding

• 🏠 Creating nesting cavities during breeding season

• 🔊 Drumming behavior (territory marking)

👉 In Calgary’s climate, homes with moisture issues or older siding are especially vulnerable.

⚠️ How Woodpecker Holes Affect Your Home’s Structure 

1. 💧 Water Intrusion & Rot

Once a hole is created, water can seep into your walls, leading to:

• Wood rot

• Mold growth

• Insulation damage

2. 🐭 Pest Entry Points

Woodpecker holes become entryways for:

• Mice and rodents

• Wasps and insects

• Other birds

3. 🧱 Structural Weakening

Repeated pecking can:

• Damage exterior siding and sheathing

• Weaken structural integrity over time

• Lead to expensive repairs

4. 🏚️ Decreased Property Value

Visible damage reduces curb appeal and can impact resale value.

🚨 Signs You Have Woodpecker Damage

• Round holes (1–2 inches wide) on siding

• Tapping or pecking sounds early morning

• Wood chips or debris near walls

• Increased insect activity

🛠️ How to Fix Woodpecker Hole Damage

Immediate Steps:

1. Inspect the extent of the damage

2. Seal holes temporarily to prevent pests

3. Address underlying insect issues

Professional Repair Includes:

• Hole sealing and patching

• Replacing damaged siding

• Treating insect infestations

• Installing deterrents

🛡️ How to Prevent Woodpecker Damage in Calgary 

• Install bird deterrents (spikes, netting, reflective tape)

• Maintain and repaint wood surfaces

• Eliminate insect infestations

• Schedule regular pest inspections