Garage Door
January 9, 2026
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Peter and Sons Garage Door Chicago
How to Repair Rotted Wood Garage Door
Wooden garage doors bring charm and character to any home, but they can take a beating over time, especially from moisture.
If you’re dealing with rotted sections, there’s no need to stress.
Learning how to repair rotted wood garage doors can help you avoid the expense of a full replacement and keep your door looking and working great for years.
Assess the Damage First
Before the repairing process, inspect the door to determine how extensive the damage is. Rotted wood often feels soft and spongy when pressed.
Check for cracks, peeling paint, and discoloration, as these are telltale signs of rot. It’s also important to assess if the rot has affected the door’s structural integrity or if it’s limited to the surface.
Gather the Necessary Tools and Materials
To get started, you’ll need a few basic tools and materials:
- Sandpaper
- Wood filler or epoxy
- Putty knife
- Paint or wood sealant
- Safety gloves and goggles
- Wood hardener (optional for deeper rot)
Having these items ready will make the process smoother.
Remove the Rotted Sections
The first step in repairing a rotted wood garage door is to remove the damaged areas. Use a chisel or putty knife to scrape away the soft, decayed wood.
Be thorough but careful not to damage the surrounding healthy wood. If the rot is deep, consider using a wood hardener to stabilize the remaining wood.
Fill the Gaps with Wood Filler or Epoxy
Once the rot is cleared, it’s time to fill the void. Apply a high-quality wood filler or epoxy to the damaged area using a putty knife.
Spread it evenly, ensuring it fills all the gaps. For larger sections, you may need to apply multiple layers. Allow the filler to dry completely as per the manufacturer’s instructions.
Sand and Smooth the Surface
After the filler has dried, use sandpaper to smooth the repaired area. This step ensures the surface blends seamlessly with the rest of the door.
Start with coarse sandpaper to remove excess filler, then switch to finer grit for a polished finish. Wipe away any dust with a damp cloth before moving on.
Seal and Protect the Wood
To prevent future rot, sealing the wood is crucial. Use a high-quality primer followed by exterior-grade paint or wood sealant.
Apply at least two coats, allowing each to dry thoroughly. This not only protects the door from moisture but also enhances its appearance.
Replace Severely Damaged Sections
If certain sections of the door are too far gone, replacing them might be the only option. Cut out the rotted wood and replace it with a new piece that matches the original material.
Secure it with wood screws and adhesive before sanding, filling, and painting as needed.
Regular Maintenance Tips
To keep your garage door in good shape:
- Check for signs of rot regularly, especially after heavy rain or snow.
- Repaint or reseal the door every few years to maintain its protective barrier.
- Ensure the door’s weatherstripping and seals are intact to prevent moisture from seeping in.
Keeping Your Garage Door in Top Shape
Repairing a rotted wood garage door may seem hard, but with the right tools and techniques, it’s a task you can handle.
However, if the damage is extensive or you’d prefer a professional touch, we’re here to help.
At Peter and Sons, we specialize in garage door repairs and replacements, ensuring your door looks great and functions perfectly.
Our team also offers a range of services, from custom wood doors to modern steel options, all tailored to your needs.
Visit us to learn more about how we can assist you.
We’re committed to keeping your garage door in top shape, no matter the challenge!
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