The questions Tri State homeowners actually ask, with answers specific to this river valley.
They are alive. The streaks are colonies of Gloeocapsa magma, a bacteria that eats the limestone filler in asphalt shingles and spreads in river valley humidity. That is why they grow back after rain but disappear for years after a proper soft wash treatment.
Sunlight suppresses the growth. South facing slopes get enough sun to stay hostile to algae, while north facing slopes stay damp and shaded, which is exactly the environment the organism wants. If your streaks follow the shade, that confirms the diagnosis.
A high pressure wand can crack panels, warp laps, and drive water behind the wall where it causes real trouble. We wash vinyl with low pressure and cleaning solution, which gets a better result with zero risk to the siding.
Yes, and it needs a specific approach. That chalk is oxidized paint, common on aluminum sided homes in Norwood, Reading, and the older west side. It takes an oxidation appropriate wash, because ordinary soap just streaks it.
That is efflorescence, mineral salt carried to the surface by moisture inside the masonry. It brushes off and returns until it is cleaned correctly and the moisture source is addressed. It is a chemistry problem, not a pressure problem.
Flaking concrete, called spalling, is freeze thaw damage and it demands reduced pressure. We clean spalled Cincinnati driveways with wider tips and lower force, and we will recommend sealing afterward, because sealed concrete sheds the water that causes the next round of damage.
Usually yes. Wet leaves sitting on concrete over a Cincinnati fall leave brown tannin shadows that pressure alone will not lift. We treat tannin staining with the right cleaner before washing, and most driveways come back uniform.
Late May through June is the sweet spot for Cincinnati. Winter salt film is gone with a spring wash, and the heavy tree pollen that runs from mid April to late May has settled, so the clean actually lasts. Fall is the second best window.
On the right day, yes. We wash when daytime temperatures hold above 40 degrees, which happens more often in a Cincinnati winter than people expect. Below that, solutions underperform and surfaces can ice, so we wait for the next mild stretch.
Wood needs to dry fully first, which typically means two to four dry days in Cincinnati humidity. Stain applied to damp wood fails early, so we would rather have you wait a weekend than redo the finish next summer.
Yes, we run from your outdoor spigot. A typical house wash uses roughly what a few loads of laundry use, a barely visible line on a Greater Cincinnati Water Works bill.
Usually between 300 and 450 dollars depending on stories, buildup, and access. Text photos and your address to 859.489.2342 and we will replace that range with one firm number.
Reach out and we’ll get back to you within a business day.
Call or text 859.489.2342 for a firm quote anywhere in the Cincinnati Tri State.