Spring is the most popular time for pressure washing in Central Ohio — and for good reason. After months of freeze-thaw cycles, road salt spray, and wet winters, your siding, driveway, and roof are ready for a refresh. But “once a year” is a rule of thumb, not a hard rule. The right frequency depends on the surface, your lot, and what your home is up against.
Here’s a breakdown by surface.
Exterior Siding: Once a Year
For most homes in Union, Franklin, Delaware, and Logan counties, an annual house wash is ideal. Ohio’s humidity creates perfect conditions for mold, mildew, and algae to build up on siding — especially on north-facing walls that stay shaded.
Signs it’s time sooner:
- Green or black streaking on siding
- Visible mold or mildew spots
- Siding looks dingy even after rain
- You’re preparing to paint or sell
If your home is surrounded by trees or sits on a lot that stays damp, consider washing every 6–8 months instead.
Driveways and Concrete: Every 1–2 Years
Concrete is porous and holds onto oil, tire marks, and organic staining. In Ohio, the freeze-thaw cycle also forces grime deeper into the surface over time. Most driveways need a professional cleaning every 12–24 months.
Signs it’s time:
- Visible tire tracks or oil stains
- Algae or moss growing in shaded sections
- Surface looks “gray and tired” rather than clean
High-traffic driveways — especially those used by delivery trucks, contractors, or multiple vehicles — may need annual cleaning.
Roof: Every 2–3 Years (Earlier If You See Black Streaks)
Your roof should never be cleaned with high pressure — that damages shingles and voids warranties. Soft washing kills the algae (Gloeocapsa Magma) responsible for black streaking and extends roof life.
Most asphalt shingle roofs in Ohio need a soft wash every 2–3 years. But if you notice black streaks, don’t wait — algae spreads quickly and can accelerate shingle deterioration.
Decks and Fences: Every 1–2 Years
Wood and composite decks collect mold, mildew, and UV-faded grime. If your deck is prepped for staining or sealing, it needs to be clean first — a professional wash is part of that process. Fences, especially wood privacy fences, benefit from an annual light wash to prevent bio-growth from eating into the wood grain.
Gutters: Once a Year (Plus After Heavy Storms)
Beyond clearing clogs, gutter cleaning and brightening removes the “tiger stripe” stains that form when roof runoff bleeds oxidation down the gutter faces. Once a year is standard — twice if your lot has heavy tree cover.
When to Wash More Frequently
Some situations push every surface toward more frequent washing:
- After a storm — tree debris, leaves, and roof runoff leave staining
- Before selling — curb appeal directly affects perceived value and offer prices
- After construction or remodeling — dust and debris embed in every surface
- Near a road — brake dust and exhaust residue build up faster on surfaces near traffic
The Bottom Line
A good rule of thumb for Central Ohio homes:
| Surface | Frequency |
|---|---|
| Siding / House Exterior | Annually |
| Driveway / Concrete | Every 1–2 years |
| Roof (soft wash) | Every 2–3 years |
| Deck / Fence | Every 1–2 years |
| Gutters | Annually |
If you’re not sure whether your home is ready, the easiest test is to look at your north-facing walls and your driveway in bright light. If you see green, black, or gray film — it’s time.
Buckeye Wash Co. serves Union, Franklin, Delaware, and Logan counties. Get a free quote and we’ll assess your home and recommend the right service frequency.