Short answer: The most common signs are breakers that trip often, no open breaker slots, flickering lights, a warm or buzzing panel, and plans to add an EV charger or heat pump. A hot panel, scorch marks, or a burning smell mean you should call an electrician immediately.
The seven signs
- Breakers trip repeatedly under normal use
- Lights flicker or dim when large appliances start
- The panel is full, or filled with tandem breakers
- The panel feels warm, buzzes, or shows discoloration or scorch marks
- You are adding an EV charger, heat pump, range, hot tub or addition
- The home still has a 60-amp service, or a small 100-amp service with heavy modern loads
- The panel is an older design that is hard to get breakers for, or fuses that keep blowing
Which signs are urgent
A hot panel, a burning smell, scorch marks, or a breaker that will not reset are safety issues. Turn off what you can, and call a licensed electrician the same day. The other signs are about capacity and can be planned, but they tend to get worse as you add loads.
What happens next
A licensed electrician inspects the panel, calculates the home's real load, and tells you whether you need a new panel, a larger service, or just a few circuit changes. The upgrade itself is permitted and inspected.
Cost figures are published national ranges and are for planning only. Your price depends on your home, so we quote after we see it. Last updated October 2026.
Get a quote for your home
All City Electric has been a family-owned, licensed and insured Shoreline electrician since 1971. Call (206) 533-6333 or request a free quote.