HOME FIELDNOTES
Some things shouldn’t wait.
The first useful decision may be to stop. If there is an immediate danger, leave the hazard area and call 911 from a safe location in the United States.
Smoke, sparks, or a burning smell
Get people away from the hazard. For a suspected fire, leave and call 911. Do not touch damaged equipment, put water on an electrical fire, or delay leaving to identify a breaker.
Read the electrical warning-sign guide →A gas smell or suspected gas leak
Leave the building immediately. Avoid switches, plugs, flames, and using a phone inside the affected area. From a safe location outside, call 911 or your gas utility’s emergency number. Do not return until responders say it is safe.
A carbon monoxide alarm
Get everyone outside to fresh air and call 911 or the fire department. Do not wait for symptoms or investigate the source. Re-enter only when responders say you can.
Read the CO alarm guide →Water near electricity or sewage backup
Stay out of the wet area and keep others away. Do not touch equipment or enter water to reach a shutoff. Arrange appropriate emergency, utility, or plumbing help. Sewage-contaminated damage needs professionals with suitable experience.
Structural movement or hazardous materials
Stay clear of a sagging ceiling, unstable structure, or falling material. Leave an area that may collapse and call emergency services if there is immediate danger. Do not disturb suspected asbestos, lead paint, or extensive mold; get qualified assessment.
Routine problems still have a boundary
Stop when access is uncertain, a part must be forced, protective covers would need removal, or conditions differ from the guide. A source-linked article is not permission to perform work that requires a local license, permit, or property owner’s approval.