How we identify and treat the different types of stains that build up on exterior surfaces.
Get a Free Quote (816) 539-5496Rust, oil, algae, and tannin stains all form differently, and each one needs a different chemical approach to actually lift instead of just fade.
Rust usually comes from old metal fixtures or rebar bleeding through concrete or brick. We use an oxalic acid based cleaner that targets the iron oxide without eating into the surface underneath.
These need a degreaser that breaks the oil down chemically. Pressure alone just spreads oil across a wider area instead of lifting it.
Algae streaks respond well to a soft wash treatment that kills growth at the root instead of just knocking off what's visible.
We test any new treatment on a small hidden section first, since surfaces can react differently than expected, especially older or weathered material.
In most cases, yes. An oxalic acid based cleaner lifts rust stains without damaging the brick underneath.
No, oil needs a degreaser to break it down first. Pressure alone tends to just spread it.
Algae usually shows as green or black streaking in shaded, damp areas. We can identify the exact cause during an inspection.
