United States guidance50 states + DC context

Problem interpretation and bounded decision support

Reviewed and updated September 22, 2026

When can fans or dehumidifiers help, and when can using them be unsafe or counterproductive?

Assisted drying belongs within a source- and hazard-aware plan. EPA clean-water guidance warns against fans before water is determined clean or sanitary, and electrical or suspected mold/HVAC hazards can override ordinary drying advice.

Known clean-water context differs from sewage or unknown flooding; HVAC involvement changes airflow decisions; loss of safe electrical access stops homeowner equipment use. Avoid spreading contamination or using electrical equipment in an unsafe wet area. Record known water source, existing visible growth and equipment already operating from safe access; identify any concerns to the responsible professional without moving cords or units.

Put safety before diagnosisDo not install or move drying equipment through standing water. Do not direct fans across suspect contamination or disturb suspect hazardous materials to obtain a reading; assessment comes before a drying prescription.

Need water-damage help?Confirm request and continue to call

See what changes by location

Where is the property?

Choose a state and optionally add a city and ZIP. The selection shows which parts of the guidance still need a local check.

State or District of ColumbiaCity or community

Choose a suggestion to fill the state, or keep typing any U.S. community.

Property ZIP code

U.S. national guidance

What changes after you choose a location?

Choose a state to make the geographic boundary explicit.

A ZIP helps identify possible water-damage service areas, but it does not prove jurisdiction, address-level coverage or an available water-damage professional.

Applies nationallyWater Damage decision guidance; no property diagnosis or location-specific eligibility is inferred.

Must be confirmed locallyWater utility, sewer/septic authority, adopted code, permit and license scope.

Separate the source, hazard and affected materials

Which situation best matches the property?

Known clean-water context

Known clean-water context differs from sewage or unknown flooding.

Notice next: Record known water source, existing visible growth and equipment already operating from safe access.

HVAC involvement

HVAC involvement changes airflow decisions.

Notice next: identify any concerns to the responsible professional without moving cords or units.

loss of safe electrical access stops homeowner equipment use

loss of safe electrical access stops homeowner equipment use.

Notice next: Why is this airflow plan suitable for the source and affected materials?

Safe observation

What should you record before the call?

A short, factual description helps the next professional choose the right first inspection without treating a symptom as proof.

No room-size equipment formula, universal window position, runtime or do-it-yourself containment design. Exact equipment and project conditions are required.

What to record

Record known water source, existing visible growth and equipment already operating from safe access.
identify any concerns to the responsible professional without moving cords or units.
Why is this airflow plan suitable for the source and affected materials?
Who checked power, discharge, isolation and occupant access?

Stop and get appropriate help

Do not install or move drying equipment through standing water.
Do not direct fans across suspect contamination or disturb suspect hazardous materials to obtain a reading.
assessment comes before a drying prescription.

Move from information to action

Who is the useful first contact?

Qualified water-damage professional

Water-mitigation/restoration expertise for source-scoped drying and materials; the relevant plumber, roofer or other source-repair trade where that is the actual cause under investigation.

Why is this airflow plan suitable for the source and affected materials?
Who checked power, discharge, isolation and occupant access?
What symptoms of equipment failure should be reported?

Relevant source-control trade or local authority

Water utility, sewer/septic authority, adopted code, permit and license scope. Confirm the responsible role and exact property scope before authorizing work.

A phone number appears only after you confirm the type of request. A connection does not prove that a provider serves the address or will accept the job.

Check local call availability

Want a water-damage professional to inspect the water-damage situation?

This guide can help organize the symptoms, but it cannot inspect the property or confirm the repair. Confirm the request details to prepare a call that checks whether a participating provider can accept a new water-damage restoration request.

Describe what is happening, where you notice it, and when it began.
Share safe observations about the source, timing and affected materials without entering a hazardous area.
Ask what the visit includes before authorizing work.

Confirm the request, then continue to call

Water-damage service availability and job acceptance are confirmed on the call.

Call Home Help is not the service contractor. If a connection becomes available, calling connects you with a participating third-party provider and we may receive compensation. Availability and job acceptance are confirmed on the call.