Quality Windows, Siding and Doors Since 1976 1-866-4FELDCO® | Customer Support
  • NARI Member - National Association of the Remodeling Industry
  • energy star certified logo
  • all Feldco products are EPA certified to be lead safe
  • osi certified installer
  • window and door magazine dealer of the year
mobile call button

How to Repair a Rotted Wood Window Frame

Homeowners know that wood rot is a fact of life. However, it can be an uphill battle trying to keep your home protected from the elements. Rain and humidity find a way into your wood trim, doors and window sill. Soon you have unattractive decay and it may even set in. Stop the spread in its tracks. Read on to find out how to repair rotted wood window frame.

rotted wood window frame

Fix Your Rotted Window Frame With Epoxy

Rotted window frames are fixed with a wood compatible epoxy adhesive, applied in two steps. To do this you’ll need:

1. Inspect the Damage

To start, you’ll want to check out the condition of your window frame. To better understand what you’re dealing with, the best course of action is to check if the window frame could be repaired. When you live in a damp and humid climate, the condition of your wooden window frame can be damaged past the point of no repair.

wooden window frame damaged from moisture

More than 10 percent of the wood frame damage is enough to replace the whole frame. If you consider replacing the wood frame, then you should consider getting vinyl windows since they last longer in damp climates. In fact, they are the most sought windows in the United States since they help boost energy efficiency and they are visually appealing.

2. Remove the Rotted Parts

For this step, you’ll need the following tools: chisel or a flathead screwdriver, and a brush. Time to get started on removing the rotted material. First, you’ll use the chisel or flathead screwdriver to scrape the rotted parts. You’ll want to scrape the rotted material until you see healthy parts. Next, you’ll gently use the brush to scrub against the surface and clean away the rubble.

3. Drilling Holes into the Frame

For this step, you’ll need the following materials and tools:  ¼-inch bit driller/driver. Now’s the time to use the ¼-inch bit to drill holes into the healthy wood. Remember to space them out about an inch apart. Fillers will have a secure hold onto the wood if the holes are evenly spaced out. Once you finish, your next course of action will be to dust off any debris by using a brush.

4. Apply Epoxy Wood Consolidant

You’ll need the epoxy wood consolidant to cover the holes you drilled. Make sure you cover each hole with epoxy. Afterwards, you’ll want to wait for 5 to 10 minutes until it dries. Allow the wood to absorb the epoxy. Once the application dries, you’ll go ahead and apply a second layer of epoxy.

5. Apply the Filler to the Frame

The window frame should be restored to its original dimensions after you apply the filler. To apply it, place a good amount of filler onto the scraped off and damaged area. You’ll want to mold it to match the shape of the frame.

Use a putty knife to pressure the filler firmly into place and allow the filler to dry for about 24 hours or the recommended waiting time that’s listed on the label.

6. Prep and Paint the Frame

To prep the window frame for painting, you’ll want to use a rough-grit sandpaper to level the hardened epoxy with the window frame. Next, you’ll need to use a fine-grit sandpaper to create a smoother surface.

Next, you’ll wipe away the debris and dust with a rag to ensure that the paint doesn’t interfere with anything. You’ll want to use a good exterior paint to paint over the frame. Exterior paint can keep the wood and filler protected from outdoor elements.

Choose a color that complements the other exterior window frames. Before you start painting, you’ll want to apply painter’s tape alongside of the frame to protect the glass. Now you can start painting the frame with an up and down motion. Take your time and make sure that you use clean brushes.

Always Go with Professionals for Window Replacement

Your home’s beauty is in the details, and nothing can ruin a facade like rot and decay. Since vinyl is less porous than wood, it’s not plagued by moisture seeping in and wrecking it. The low-maintenance option, you won’t have to paint or repair vinyl windows down the line.

Our windows are crafted with the finest materials so you know they’re built to last. If you’re looking for a way to replace those old rotted windows, look to Feldco for the best in energy efficiency and quality. Get a free quote here.

Get a Free Quote

It's easy, fast and completely free. Get started below:

Yes, Quote Me! No, I'm Not Ready Yet