Your roof takes a beating from weather, sun, and debris from nearby trees. After years of abuse it can start to look dirty, with algae growth, mold and dark streaks. You might be tempted to pressure ...

Timothy has written about personal finance, including detailed home renovation and repair cost guides, since 2017. His work covers everything from plumbing and roofing to solar and pest control. Find ...

High-pressure water can do serious damage in seconds. Pressure washing damages shingles, shortens roof lifespan, and may void warranties. Water forced under shingles can cause mold, leaks, and rot.