Step 6 · Paint and Finish Repairs

After all repairs to the sash and frame are completed, and any wood filler or glue has fully cured, it's time for finishing. Lightly sand any rough spots or edges of the repaired areas to ensure a smooth surface. Wipe away all dust with a tack cloth or damp rag. Apply a coat of high-quality exterior primer to the repaired sections, feathering the edges into the surrounding paint. Allow the primer to dry completely according to the manufacturer's recommendations. Then, apply one or two coats of exterior-grade paint, matching the original color and finish of the window. Ensure even coverage and smooth brush strokes for a professional look.