Roof Bio Cleaning Naples — The Stains Standard Cleaning Won’t Touch
Some roof stains aren’t algae. Lichen, moss, and embedded organic growth need different chemistry, longer dwell, and a treatment-specific approach. We’ve been removing the stubborn stuff from Naples roofs since 1992 — across tile, shingle, and metal. Free on-site quote.
Moss Removal Done Right
Won’t Damage Roofing
Family Owned Since 1992
Not All Roof Stains Are the Same
Bio Cleaning
When most people say “my roof is stained,” they’re picturing the dark streaks caused by Gloeocapsa magma — the algae responsible for the black-streak look on most Naples roofs. Standard soft wash handles that. But there’s another category of roof stains that doesn’t respond to standard treatment: lichen, moss, and embedded organic growth from heavy tree cover. That’s where bio cleaning comes in.
Lichen is a composite organism — part algae, part fungus, mutually dependent — with an actual root structure that physically attaches to the roof surface. Standard chemistry concentration doesn’t kill it. Standard dwell time doesn’t penetrate it. You can pressure-wash it off (most operators do), but that damages the roof and the lichen comes back within a year because the spores remain. Bio cleaning uses higher chemistry concentration, longer dwell time, and a treatment-specific approach that kills the organism completely — root structure included.
Lichen requires 30+ minute dwell time at higher chemistry concentration to die at the root. Most roof cleaners use the same chemistry and timing they use on regular algae — which is enough to kill surface algae but not the lichen root structure. The lichen looks dead for a few months, then regrows from the roots that survived. We treat lichen as its own category with its own protocol. Same for moss.
Moss is the third category. Less common in Naples than algae or lichen, but problematic when present — usually on the north-facing slope of homes near tree lines or in heavily shaded sections of Pelican Bay, parts of Marco Island, and older inland neighborhoods with mature canopy. Moss holds moisture, which accelerates roofing degradation underneath. Removing it correctly means killing the moss, gently removing the dead biomass, and treating the area to prevent regrowth — all without damaging shingles, tiles, or metal beneath.
After 5,000+ jobs in this market we’ve developed specific protocols for each of the three stain categories. Most homes have just algae and need standard soft wash. Some have lichen patches, some have moss colonies, and a few have all three. The on-site quote tells us which protocol to use — and what it’ll cost — so there are no surprises.
Three Stain Types. Three Treatments.
Method per Stain
Each of the three organic stain categories on Naples roofs needs a different approach. Wrong protocol = wasted job, regrowth in months, damaged roof. Here’s what we do for each.
Algae (Gloeocapsa magma)
What it looks like: Dark vertical streaks down the roof, usually starting from the top. The most common Naples roof stain.
Our protocol: Standard soft wash — sodium hypochlorite at 1-3% concentration, 10-20 minute dwell time, low-pressure rinse. This is the easy one. Done correctly, lasts 2-3 years.
Lichen (Crustose & Foliose)
What it looks like: Round patches in green, gray, or yellow that appear “stuck on” to the roof surface — because they are. Lichen has a physical root structure.
Our protocol: Higher chemistry concentration, 30+ minute dwell time, sometimes a second application after the first die-off. Roof must be fully dry before we start. Doesn’t disappear immediately — the dead lichen weathers off over the following weeks.
Moss
What it looks like: Green, fuzzy patches usually on north-facing or heavily shaded slopes. Holds moisture and feels soft.
Our protocol: Kill the moss with appropriate chemistry, allow biomass to dry and lift, gently remove with low-pressure rinse and minimal mechanical action. Treat the affected area afterward to prevent regrowth.
We've been cleaning Naples roofs since 1992. We're not a franchise. We're not a national chain that bought a local name. We're the same Corcoran family operation that started here three decades ago — same number, same standard, same crew. There isn't a tile profile, paver pattern, or stain type in this market we haven't seen. That experience matters because the wrong chemistry damages tile. The wrong pressure strips finishes. We know what works on what — because we've done it 5,000 times. Soft wash uses chemistry, not pressure, to kill the algae and lichen at the root. That's why our cleans last. Pressure washing roofs is faster but ruins them — voids warranties, displaces granules, lifts tiles. We do it the right way, every time.
Why Naples Has Trusted Us Since 1992
34 Years. Same Family.
5,000+ Naples Roofs
Soft Wash, Done Right
I've cleaned roofs in Naples since before HOAs cared about black streaks. Back then we used pressure washers because that's all there was. Now we soft wash because that's what works without damaging tile. 34 years in the same business teaches you the difference. Same family. Same number. Same standard since 1992.
Tell us what you're seeing — dark streaks, green patches, fuzzy growth. We'll identify the stain type during the on-site quote and price the right protocol. Same business day callback.
Get a Bio Cleaning Quote
"Black streaks were so bad the HOA sent a letter. 321 was out within a week. Roof looked new the same afternoon. Two years later still no algae. They use real soft wash chemistry, not just water pressure." "Three estimates. 321 was middle on price but the only one that explained the chemistry of soft wash and showed proof of insurance without me asking. Easy choice. Job was clean." "Roof was streaked from one end to the other. Insurance was threatening to drop us. 321 cleaned it Tuesday, took photos for the carrier, problem solved. Insurance kept the policy. Worth every penny."
What Naples Says About Our Roof Work
Bio Cleaning FAQ
Naples · Lichen & Moss
Tell us what you need cleaned. Jonathan or one of the crew comes out, walks the property, and gives you a real number — same business day. No franchise call center. No high-pressure pitch. Just a fair price from the family that's been doing this in Naples since 1992.
Same Family Since 1992. Same Standard Today.