Encountering mold in your home can be a worrying prospect, and the location and the amount you find will determine whether a professional service is required.

If a visible mold path measures more than 3 feet by 3 feet or if mold is found in more than 1 room of your home, you should seek professional remediation. Anything smaller can be removed with retail mold cleaners with ease.

According to guidelines set out by the United States Environmental Protection Agency (EPA), mold growths of this size are considered too extensive to be dealt with independently.

There are some early warning signs that tell you whether you might have a mold problem. Read on for more details.

While measuring any visible mold growth in your home is one of the best ways of determining whether you need mold remediation, it may not always be possible to rely on this method alone.

Hidden mold, or mold that grows out of sight in out-of-the-way places, can pose just as serious a risk as visible mold growths. This hidden mold can grow anywhere, from behind your wallpaper to underneath your carpet.

We’ve identified four key warning signs to watch out for that might indicate that you need mold remediation.