A general guide
- House siding: every 1–2 years for most homes; yearly for heavily shaded homes or homes near water.
- Roof: when black streaks or green growth appear, often every 3–5 years after a proper soft wash.
- Driveways, sidewalks & patios: every 1–2 years, or before a big event or listing your home.
- Decks & fences: once a year, and always before staining or sealing.
- Gutters (outside faces): along with a house wash, when dark stripes appear.
What makes Iowa homes need it more often
Eastern Iowa summers are humid, and many neighborhoods have mature trees. Moisture and shade are exactly what algae and mildew need. That's why the north side of a house, or any wall that stays shaded, usually turns green first. Homes near the Cedar River, lakes or heavy tree cover tend to need washing more often than homes in open, sunny subdivisions.
New construction areas are the opposite problem: dust, mud and concrete residue from nearby building sites settle on siding and flatwork.
Signs it's time
- Green or gray film on siding, especially on the north side
- Black streaks running down the roof
- Dark vertical stripes on the front of the gutters
- Driveway or sidewalk looks darker than it used to, or feels slick when wet
- Spider webs, pollen and dirt collecting around windows and soffits
Why regular washing costs less
Light, regular cleanings are faster and gentler than tackling years of buildup. Organic growth left for years can stain surfaces and shorten the life of roofs, paint and wood. A maintenance schedule keeps your home looking good and protects what you've invested in it.
Need help in Cedar Rapids? SurfacePro Pressure Washing is a fully insured, locally owned exterior cleaning company serving Cedar Rapids and 30 miles around. Call or text (319) 310-9107 or request a free quote.