Soft Washing in Grosse Pointe
Soft washing is a method, not a surface. It is what we bring to anything that force would damage: masonry, painted wood, slate, tile, and the lakeside elevations that stay damp from May to October because Lake St. Clair is at the end of the street.
A soft wash trades pressure for chemistry and patience. Solution is mixed to suit the surface in front of us, applied at about the volume of a garden hose, and left to sit while it kills the algae, mildew and spores living in the texture of the material. Then it is rinsed away. No part of the process depends on force, which is the point, because on brick, limestone, painted wood, slate and copper it is force that causes the damage. Dwell time is the variable that matters, not pressure, and on a cold morning it simply takes longer. Growth killed at the root stays gone two to three years on a shaded wall and longer where the sun reaches.
Lakeside elevations need it most. Lake St. Clair forms the east and south edge of the community, and every Pointe keeps a park directly on the shore, from Windmill Pointe Park and the George H. Helm Boardwalk at Patterson Park up the shoreline toward St. Clair Shores. Houses within a few streets of that water live in steady humidity. East-wind spray salts the windward face, the November gales drive moisture into every joint, and a wall that never dries out completely grows algae nearly year round. Those elevations bloom weeks ahead of the inland ones.
Walls are not the only candidates. Porch ceilings and soffits, painted garden walls and fences, limestone steps and sills, garage doors and the shaded stone at the base of a chimney all take the same treatment on the same visit. So do the lake-facing rails and pool-house walls on the streets off Lake Shore Rd. Soft washing shares the house-wash starting price of $349, and adding smaller surfaces to a wall job costs much less than sending a crew back for them later. Each item is quoted on its own line.
Chemistry, Dwell, Rinse
Every job opens with a test panel somewhere out of sight, because one solution behaves differently on painted wood than on limestone. Plantings and any bed in the runoff path are soaked before application and rinsed again at the end. Solution goes on from the bottom upward, which prevents the streaking a dry wall under wet solution produces, and it dwells until the color change tells the technician the growth is dead. The rinse then works top down at hose volume. Where a stain has bonded rather than grown, a soft brush by hand follows the chemistry. Nothing is allowed to dry on the surface.
Where Force Gets Substituted for Chemistry
Trading dwell time for pressure is the common error, and on this housing the results do not reverse: opened mortar, pitted limestone, lifted paint, water pushed in behind trim. The second error is quieter. A rinse with no chemistry strips the visible layer of algae and leaves the root system sitting in the surface, so a wall looks clean in June and reads green again by September. Both roads end with the owner paying twice, once for the wash and once for the repair or the repeat.
Timing It Right
Lakeside walls come first in the season, usually April, because they bloom earliest and carry the most growth out of winter. Inland elevations under canopy follow through May and June. On shoreline jobs we watch the wind, since a strong east breeze makes controlled application difficult and moving a day beats fighting it. Late-season washing is fine as long as the wall can dry before an overnight freeze.
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Soft Washing in Grosse Pointe: FAQs
What is in the solution you put on my house?
A dilute cleaning solution built around sodium hypochlorite, softened with a surfactant so it clings and spreads instead of running straight off. The mix is cut to the surface, so limestone gets a gentler ratio than a garage door does. It is rinsed off at the end, and plantings are soaked before and after so nothing sits on a root.
Why does my lake-facing wall grow algae faster than the street side?
Because it almost never dries. Humidity off Lake St. Clair, east-wind spray and the gales that arrive in November keep that elevation wet for longer stretches than any other wall on the house. Algae grows only while a surface holds moisture, so the lake side gets more growing hours every week of the season.
Is soft washing safe around plantings and this close to the water?
Yes, handled properly. Beds are saturated before work starts, which keeps solution from reaching roots, and rinsed again afterward. Application is controlled at low volume rather than sprayed into the wind, and the rinse is directed where we want it to go. On shoreline lots we also plan where the runoff ends up before starting.
How long does a soft wash last on a lakeside house?
Two to three years on shaded walls, longer on walls that get sun, and toward the shorter end on the elevations facing Lake St. Clair. Refreshing one elevation between full washes is a reasonable middle step there, and it costs far less than doing all four sides a year early.
More in Grosse Pointe
Deeper reading: Why Homes Near the Water Grow Mildew So Much Faster and What Chemicals Do Power Washing Companies Use?.
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