Pressure Washing: What It’s Great For and What It Can Destro
Pressure Washing
Pressure washing is one of the most powerful exterior cleaning methods available. When used correctly, it can completely transform surfaces and restore them to like-new condition. But when used improperly — or on the wrong surfaces — it can cause serious damage.
Pressure washing works best on hard, durable surfaces like:
- Concrete driveways
- Sidewalks
- Patios
- Brick
- Retaining walls
- Some stone surfaces
These materials are strong enough to handle higher PSI. Pressure washing removes:
- Embedded dirt
- Oil stains
- Grease
- Tire marks
- Surface buildup
- Organic growth
When done professionally, it restores the original color of concrete and masonry and improves safety by removing slippery algae.
What Should NEVER Be Pressure Washed
- This is where many homeowners — and inexperienced contractors — make costly mistakes.
Vinyl Siding
High pressure can:
- Crack or warp panels
- Cause etching on siding
- Force water behind siding
- Cause hidden mold growth inside walls
- Void manufacturer warranties
Vinyl siding should be Soft washed, Pressure.
Asphalt Shingle Roofs
Pressure washing shingles can:
- Strip protective granules
- Shorten roof lifespan
- Cause leaks
- Void roof warranties
Those black streaks are algae — and they should be treated with a low-pressure soft wash system, not high PSI.
The Professional Difference
At Supreme Clean Exterior Renewal LLC, we don’t just “wash” surfaces — we evaluate them.
We use:
- The correct PSI for each surface
- Surface-specific cleaning solutions
- Soft wash systems where required
- Professional equipment designed to clean without damage
Because cleaning your property should extend its life — not shorten it.