Emergency safety comes first
Do not enter standing water to reach electrical controls or operate electrical equipment. If power cannot be disconnected from a dry, safe location, call an electrician. Leave if you smell gas or suspect a leak, and contact the utility or emergency services from a safe place.
Stay out of a damaged building until it has been checked for safety. Sagging roofs, leaning walls or new structural cracks warrant professional assessment. A restoration appointment is not permission to enter an unsafe property.
A pipe leak or appliance overflow
Arrange prompt source repair and assessment of affected materials. Do not assume removing the visible puddle resolves water inside flooring, walls or cabinets. Ask the restorer where moisture may have traveled, what needs measurement and whether another trade must repair the source.
Sewage backup or outdoor floodwater
Floodwater can carry sewage, chemicals and other hazards. Keep people out of affected areas and use professionals experienced in contaminated-water damage. This calls for more than ordinary drying: ask how they will assess contamination, protect unaffected rooms, handle damaged materials and document cleanup.
Do not use flood-affected HVAC equipment to dry the home until a qualified professional has assessed it. A contaminated system can spread pollutants.
Visible mold, musty odors or an uncertain history
Tell the contractor when the water was discovered and whether the area has remained wet or flooded. Ask for an assessment of hidden moisture and mold rather than a cosmetic cover-up. EPA recommends experienced help for contaminated-water damage and additional remediation guidance for extensive water damage or mold exceeding about 10 square feet.
That area guideline is not a universal safety cutoff. Suspected HVAC contamination, hidden damage and occupants’ health can change the appropriate response.
Frequently asked questions
Can I stay in the home during cleanup?
There is no universal answer. Ask about safe access, utilities, containment and which rooms remain usable. CDC advises people with asthma, COPD or immune suppression not to stay in a moldy home or be present during its cleaning. Ask your healthcare professional about individual health concerns.
Should I switch on fans or the HVAC immediately?
Do not do so automatically. Electrical safety must be established first. Fans can spread existing mold, and suspected mold-contaminated or flood-affected HVAC needs professional assessment before use.
Does a small visible patch mean professional help is unnecessary?
No. Visible size is only one factor. Sewage, contaminated water, extensive wet materials, suspected hidden mold or HVAC involvement can justify professional help even when the visible patch is small.