Embedded stains lighten, they don't vanish. Deep-set oil, rust that has oxidized in place and etching are in the concrete — we show you on a test spot before we quote the whole surface.
Freshly cleaned concrete can reveal marks the grime was hiding — old sealer lines, patch edges, sprinkler shadows. They were always there. The assessment flags them ahead of time so cleaning day holds no surprises.
Existing sealer is noted in your report as we find it — worn, whitened or intact — so you know what the surface has on it before any cleaning starts.
Your landscaping and propertyBeds and lawn beside the concrete are pre-wet before the mix goes down and rinsed after, and we work out where the wash water will travel before a hose comes off the truck.