Green algae or mildew on siding — Lodz, Łódź
Green or black streaks on vinyl, wood, or fiber-cement siding are usually algae (Gloeocapsa magma) or mildew colonies fed by moisture and shade. Left alone they trap moisture against the surface, accelerating rot in wood and degrading paint. A professional pressure washing ($200–$500 for an average home exterior) removes these growths in 2–3 hours using a soft-wash technique — low pressure (under 1,500 PSI) with a sodium hypochlorite or oxygen bleach solution that kills spores without damaging siding. Standard high-pressure washing can force water behind siding laps on vinyl and splinter softwood grain, so soft-wash is the industry standard for building exteriors.
Who to call
For this problem in Lodz, call a: Schoonmaker
Vind een Schoonmaker in LodzSymptoms to look for
- Green, black, or dark streaks on siding that don't wash off with a garden hose
- Siding feels slimy or slippery to the touch in shaded areas
- Discoloration worsens on north-facing walls or under trees
- Musty outdoor smell near the house foundation
Spoeddienst in Lodz
Emergency home services in Łódź are available 24/7 with response times of 30–60 minutes across the central grid. Callout rates run PLN 150–350 plus PLN 90–150/hour — among the cheapest of Poland's major cities. Building managers (zarządcy) of revitalized tenements often keep preferred-contractor lists for the recurring leaks and electrical faults typical of the old stock.