Those Black Streaks Aren't Dirt. They're Eating Your Roof.
The dark stains running down Michigan roofs are Gloeocapsa magma — a bacteria that feeds on the limestone in your shingles. Our manufacturer-approved, no-pressure process eliminates it completely and adds years to your roof's working life.
The Most Misunderstood Cleaning Service in the Industry
Most homeowners assume roof streaks are cosmetic. Roofing manufacturers know better — which is why shingle warranties specifically address algae, and why the Asphalt Roofing Manufacturers Association endorses exactly one cleaning method: low-pressure chemical application. Never pressure washing. Pressure strips the granules that give shingles their weather resistance, and it can void your warranty in a single pass.
Our roof cleaning follows the manufacturer-approved playbook to the letter. A carefully mixed solution is applied at little more than garden-hose pressure, where it kills the algae colony — roots, spores, and all. The streaks fade as the organizms die, and rain finishes carrying the residue away over the following weeks. No pressure ever touches your shingles.
The payoff is bigger than curb appeal. Algae colonies hold moisture, feed on limestone filler, and shorten shingle life measurably. Cleaning costs hundreds; replacing a roof costs five figures. That math is why smart homeowners clean.
How We Clean a Roof Without Ever Pressuring It
Inspect & Protect
We assess shingle condition, note any fragile areas, and thoroughly pre-wet all landscaping and downspout zones before treatment begins.
Treat, Don't Blast
Our solution is applied at low pressure across the entire roof surface, saturating the algae colonies that cause streaking and shading.
Rinse & Neutralize
Ground-level surfaces and plants get a final freshwater rinse. The roof itself is left to let the treatment finish its work — as manufacturers specify.
Results That Compound for Years
Heavy streaking begins fading immediately and continues improving for several weeks as weather rinses the dead growth away. More important is what you won't see: no more colonies expanding across the shaded north face, no more moss lifting shingle edges, no more granules washing into gutters at an accelerated rate.
A professionally cleaned roof typically stays clear for three to five years in our climate. Pair it with a house wash and your whole exterior resets to baseline in a single visit.
What Will Roof Cleaning Cost at My House?
Pick your home size and condition for a real range in about twenty seconds. Add other services to see the bundled price — one visit is always cheaper than three.
1 · What do you need cleaned?
2 · Home size
3 · Condition
Roof Cleaning FAQs
Will roof cleaning void my shingle warranty?
Our method is the one roofing manufacturers explicitly endorse: low-pressure chemical application. What voids warranties is pressure washing — which is why we never put pressure on a roof, period. If a company quotes you a "roof power wash," keep shopping.
How long until the black streaks disappear?
Light staining often vanishes the same day. Heavy, established streaking dies immediately but takes several weeks of natural rainfall to fully rinse away — that's normal, expected, and part of the manufacturer-approved process. We'll show you what to expect based on your roof's condition.
Is the treatment safe for my gutters and landscaping?
Yes. We pre-wet and rinse all landscaping, protect downspout discharge areas, and use solutions that neutralize quickly. Aluminum gutters are unaffected by the treatment at our working dilutions.
How often does a roof need cleaning in Michigan?
Every three to five years for most homes, sooner for heavily shaded roofs or homes near water. Once you've seen streaks, the colony is established and only treatment will remove it — it never rains off on its own.
Services that pair well with roof cleaning
Soft Washing
The safe, science-driven way to clean siding, roofs, and delicate surfaces — killing mold and algae at the root instead of blasting at symptoms.
Explore Soft Washing →Gutter Cleaning
Full debris removal, downspout flushing, and a documented flow test — because the cheapest insurance against water damage is a gutter that actually works.
Explore Gutter Cleaning →House Washing
Our most-requested residential service: a complete, gentle exterior wash that erases years of grime, mold, and streaking from your home's siding.
Explore House Washing →Roof Cleaning across Macomb County
We bring roof cleaning to every community we serve. Find your city below for local details, or call us — if you're near Macomb County, chances are we cover you.
Add Years to Your Roof for a Fraction of Replacing It
Free roof cleaning estimates with honest condition assessments. If your roof doesn't need it, we'll tell you that too.
Get My Free Estimate or call (586) 284-3810 — Mon–Sat, 8am–10pm