Sealcoating is one of the most effective ways to protect asphalt pavement from weather damage, oxidation, and everyday wear. When done correctly, it extends pavement life, improves appearance, and reduces long-term repair costs. However, when sealcoating is applied improperly, it can actually accelerate pavement deterioration instead of preventing it. At Woodstock Asphalt Paving & Sealcoating, we often see damage caused not by age—but by avoidable sealcoating mistakes. Below are the most common errors that shorten pavement lifespan and how professional service makes all the difference.