You pull into your driveway after a long day and glance toward your house. Something looks different. The siding is not as bright as you remember. The garage door looks dull. The driveway has darkened, the gutters have black streaks, and the trim around the roofline seems older than it did a few years ago. Before long, you begin wondering whether it is finally time to repaint the house, replace the siding, or invest in expensive exterior improvements. Homeowners throughout Conroe, The Woodlands, Magnolia, Kingwood, New Caney, Splendora, Willis, and the surrounding Montgomery County area have this same experience every year. But here is something many homeowners do not realize: Your home may not be aging as quickly as it appears. It may simply be covered by months—or even years—of dirt, algae, mildew, pollen residue, oxidation, and environmental buildup. Those contaminants gradually change the way your home reflects light, hide the original color of exterior surfaces, c...