R Radon Mitigation Of York

2026-06-28 · Dave Kessler · 4 min read

Black Mold Myths York Homeowners Repeat

The scary name is doing more work than the flashlight.

Bathroom ceiling with light mildew near a fan
  1. Myth: if it is black, it is the deadly one
  2. Myth: a test kit will name it and calm everyone down
  3. Myth: fog it, paint it, list it

Myth: if it is black, it is the deadly one

Color is pigment. Species is a lab, and you often do not need the lab. The health claims that float around social media outrun what CDC actually tells the public. Read does it make you sick and what EPA says.

Myth: a test kit will name it and calm everyone down

Settling plates grow a garden of whatever landed there. They rarely change the repair. Inspection versus testing explains when a real sample is worth it.

Myth: fog it, paint it, list it

Fog does not dry a joist. Paint hides a stain until August. Buyers in this county open the cellar. Fix water, remove what is ruined, clean what is hard, and document it.

Questions people also ask

+Is white mold safer?
No. White, green, and black colonies all mean moisture. Some white growth is mineral salts. Do not use color as a safety rating.
+Do I need a mold dog?
You need a flashlight, a gauge, and sometimes a meter. Dogs are a specialty act, not step one.

These pages are homeowner education from Radon Mitigation of York, written by Dave Kessler. They are not a medical diagnosis, a species identification, or an insurance determination. Color does not tell you which mold you have. If someone in the house is sick, talk to a physician. EPA's homeowner guidance treats roughly 10 square feet as the line where many people stop DIY cleanup and call a remediation crew — sooner if sewage, HVAC, or anyone immunocompromised is involved. We are a radon and basement crew. When we are already under a York house we will tell you what we see and what we would do in our own place. We do not pretend a radon fan is a mold remedy.

Musty basement? Start with the water.

Call Radon Mitigation of York if you want a local walkthrough of a damp cellar, crawl space, or a house where radon work and moisture are tangled together. Mon–Fri 8am–6pm, Sat 9am–2pm.

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Mold guides live at /guides and the questions people ask are collected on the FAQ.

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