How to Repair and Refresh Worn Window Trim

Window trim is more than just decorative—it protects your home from weather and adds to your curb appeal. Over time, trim can suffer from peeling paint, water damage, or general wear. Updating window trim not only boosts appearance but also prevents further structural issues. Whether your trim is wood or another material, basic tools and materials are all you need for noticeable results. Refresh your home’s exterior with this simple DIY update.

Project Snapshot

This project involves evaluating your current window trim, repairing damage, sanding surfaces, priming, and applying fresh paint or stain. You’ll address any soft spots or gaps, seal against future moisture, and create a crisp, updated look that improves protection and appearance. No experience is necessary, making it an ideal handyman upgrade for any homeowner.

Tools and Materials

Before you get started, gather a pry bar or putty knife, quality wood filler or exterior caulk, sandpaper in various grits, a painter’s multi-tool, an exterior primer, durable paint or stain, and a steady paintbrush. Drop cloths and painter’s tape will help keep your workspace clean. For major rot, have replacement wood trim and a saw available.

Step-by-Step Instructions

Begin by inspecting the trim for any soft or rotten wood, gently probing trouble spots with a screwdriver. Scrape away loose paint and debris, then sand the surfaces smooth. Use filler for any small holes or dents, pressing it in with your putty knife, or apply caulk to seal gaps at joints or where trim meets siding. Once dry, sand patched areas so everything is flush, then wipe clean. Mask off windows with tape and prime the repaired sections before you paint or stain with even, smooth strokes.

From the Toolbox

Last spring, a client called Handydads about peeling trim that was letting pests inside. We discovered several sections of rotted wood below the paint. By repairing these spots carefully and sealing everything properly, the trim not only looked brand new but solved their draft issue as well. Sometimes the smallest detail can make a huge difference for your home’s comfort and value.

Top 5 Mistakes

Ignoring or covering up rot instead of replacing or filling it can allow damage to grow. Skipping sanding or not prepping surfaces properly means your new finish may peel again quickly. Using interior-grade paint on exterior trim results in rapid fading. Neglecting to caulk gaps leaves your trim vulnerable to moisture. Rushing the paint application often leads to streaks and brush marks.

Tool and Material Recommendations

Choose a high-quality exterior wood filler like Minwax for repairs. A 3M medium-grit sanding sponge is helpful for edges and curves. For paint, opt for Benjamin Moore’s Aura Exterior line, paired with a Wooster angled brush for clean lines. GE Supreme Silicone caulk is excellent for sealing seams. Painter’s tape such as FrogTape prevents smudges for a crisp finish.

Quick Tips and Hacks

Work on a dry day so paint and filler set properly. Keep your brush strokes even and always apply two coats of finish for durability. Seal around all miters and window-siding seams. Save time by removing any plants or obstacles beforehand. Take progress photos to spot any sections that need extra attention.

Need a Hand?

If repairing window trim feels overwhelming or you need a flawless result, Handydads can help. Reach out today for expert handyman services and let’s make your exterior shine.