Learn

Mold Guides for Real Situations

Start with what is happening in your home or rental, then move to the guide that helps you decide what to do next.

Start with the basics Browse state-specific guides

Choose What You Need

Understand Mold

Learn how moisture, materials, and exposure fit together so you can choose your next step.

Health Effects and When to Get Help

Review established health concerns and know when to talk with a healthcare provider.

Inspection and Testing

Figure out what to inspect and when testing can answer a useful question.

Plan Mold Cleanup

Scope cleanup, containment, and verification before work begins.

Control Moisture and Prevent Mold

Stop recurring dampness and reduce the conditions that support mold growth.

Find the Water Source

Trace leaks, condensation, and other causes before they spread damage.

Mold by Room

Match common moisture sources and prevention steps to each room.

Renter, Landlord, and State Guides

Document a rental issue and find the rules and next steps where you live.

Mold Glossary

Get plain-language definitions for mold, moisture, testing, and cleanup terms.

Questions About This Site

Where should I start?

If you have a leak, odor, staining, or visible growth, start with Mold Basics so you can identify the source and protect the area. If symptoms are the main concern, open the Health Effects guide first. If you are still comparing options, the Testing guide explains when a test helps and when it does not.

Is this site selling mold testing or remediation services?

Mold Compass does not perform testing or remediation. We publish educational guides, checklists, and templates, and some features may help readers request quotes from independent professionals. Before hiring anyone, verify credentials, conflicts, scope, and contract terms using the contractor guide.

How is this different from other mold information online?

We keep the advice tied to published guidance and practical next steps. The goal is to help you decide what to do, not to overwhelm you with alarm or vague theory.

What should I read first if I have an active leak right now?

If it is safe, stop the water source and document damage from a safe location. Keep people out when there may be electrical or structural hazards, sewage, floodwater, drain water, or water of unknown origin. Then read the after a leak guide, followed by the remediation planning guide. If you rent, add the documentation guide next.

Create a Free Account

Unlock member guides and practical resources for understanding and addressing mold.

Educational content based on published research and official guidelines. Not legal or medical advice.