Flickering or Dimming Lights in 94062 (Redwood City, CA)
A single flickering light is low urgency — check the bulb. But if multiple lights flicker, especially when large appliances turn on, or if you notice warm outlets or burning smells, call an electrician promptly. Loose connections cause electrical fires.
Flickering lights are caused by loose wiring connections, overloaded circuits, a faulty breaker, voltage fluctuations, or a failing main service connection. A single flickering bulb is usually a loose bulb or bad switch. If lights flicker throughout the house, it may indicate a serious wiring or panel issue. Diagnosis costs $100–$250, repairs range from $100–$800.
Common Causes in 94062
- •Loose or Corroded Wiring — Loose connections at outlets, switches, or the panel create intermittent contact. This is the most common cause and a fire hazard — arcing at loose connections generates heat.
- •Overloaded Circuit — Large appliances like HVAC systems, dryers, or space heaters starting up can momentarily draw excess current, causing lights on the same circuit to dim briefly.
- •Faulty Light Switch or Fixture — A worn dimmer switch, bad connection at the fixture, or incompatible LED bulb with a dimmer can cause flickering in a single light or room.
- •Voltage Fluctuation — If lights throughout the house flicker or brighten noticeably, the utility voltage may be unstable, or the main service connection (where power enters your house) may be failing.
- •Aluminum Wiring Issues — Homes built in the 1960s–70s may have aluminum wiring, which expands and contracts differently than copper. Connections loosen over time, causing flickering and fire risk.
When to Call a Pro in Redwood City
- ✓ Lights flicker throughout the house, not just one fixture
- ✓ Flickering gets worse when large appliances turn on
- ✓ You notice warm or discolored outlets or switch plates
- ✓ You smell burning near outlets, switches, or the panel
- ✓ Your home was built in the 1960s–70s and may have aluminum wiring