When is a problem with whole-home power urgent?
Treat a whole-home power problem as urgent when it creates an immediate safety exposure, active damage, loss of an essential service in dangerous weather, or rapid worsening.
What this means
Whole-home power covers partial outages, surges, generator concerns, and utility symptoms. Relevant observations include Only part of the home has power, Power goes off and returns, Appliances were damaged after a surge, Generator power seems unstable, Service wires or mast look damaged. The correct response depends on age, design, climate, usage, installation, recent work, and the exact manufacturer instructions; these observations narrow next steps but do not prove a failed part.
Safe checks
- Identify active water, heat, smoke, odour, arcing, movement, sewage, structural change, or loss of essential service.
- Move people away and use only a normal safe shutoff or disconnect when accessible.
- Call emergency services for immediate danger; otherwise contact the relevant qualified trade.
Stop and get help if
- Stop for heat, buzzing, arcing, smoke, burning odour, water exposure, damage, or repeated tripping.
- Never remove a cover, work live, or stand in water to reach electrical equipment.
Which professional to call
Use a qualified licensed electrician when the condition exceeds safe user access or the visible checks do not explain it.
Find the relevant tradeSource and method
This answer combines HomeSOS's structured triage with safety boundaries supported by a public source. It does not replace inspection.
Health Canada: Home safetyReviewed August 12, 2026