For 25 years, Coastal Companies has been the leader in window film installation across Hilton Head and the entire Lowcountry area. Today, with over 1 million sqft. of home and office window film installed, we've mastered the art of customer service and application. As an award winning, certified installer of 3M™ window film, we're equipped with the very best in equipment and technology available. Window film will save energy, reduce heat, glare and fading. Our lineup of products will not only make your windows and home more energy efficient, but also match your current window manufacturer. Don't replace your windows, tint them with 3M™ window films.