Why Are My Lights Flickering? Causes Only a Licensed Electrician Can Fix

At Platinum Power Solutions, one of the most common electrical questions we receive is, “Why are my lights flickering?” While a single bulb flicker might not seem serious, persistent or widespread flickering can signal hidden electrical problems that need professional attention. In this guide, we’ll cover the most common causes, when to worry, and why calling a licensed electrician is the safest move.

When Flickering Lights Mean Something Serious

A flickering light can be more than a simple annoyance. It can point to wiring problems, overloaded circuits, or voltage instability that affects your entire home or business. These issues can lead to overheating, power surges, or even electrical fires if ignored.

Seasonal temperature changes in Winnipeg can also affect electrical components. Expansion and contraction of wiring, especially in older buildings, can loosen connections and cause inconsistent power flow.

Loose or Damaged Wiring

Loose or damaged wiring is one of the most common and dangerous causes of light flicker. When a connection weakens or wire insulation deteriorates, electricity can arc between gaps, producing heat and sparks.

This not only damages fixtures but also creates a high fire risk. Because these issues are often hidden inside walls, junction boxes, or switches, only a licensed electrician should attempt repairs. Our team at Platinum Power Solutions performs full inspections to identify and correct these hazards safely.

Overloaded Circuits and Power Demand

Modern homes use far more electricity than older systems were designed to handle. When multiple high-demand appliances run on the same circuit, voltage can drop and cause lights to dim or flicker.

Circuit breakers protect against overloads, but if they trip frequently, it’s a clear sign your electrical system needs upgrading. Rewiring or adding dedicated circuits for heavy appliances can prevent flickering and ensure consistent power throughout your property.

Faulty Light Fixtures or Switches

Sometimes flickering stems from worn-out fixtures or faulty switches. Loose socket connections, damaged dimmers, or old light fittings can interrupt power delivery.

Try tightening the bulb or testing another fixture first. If flickering continues, the issue likely lies in the wiring or switch connection. In commercial spaces, high-use switches often wear out faster and should be replaced during scheduled maintenance.

Voltage Fluctuations and Utility Issues

Not every flicker originates inside the home. Voltage fluctuations from Manitoba Hydro or the neighborhood grid can cause all lights in your home to flicker simultaneously.

If multiple homes on your street experience the same problem, it’s likely an external power supply issue. However, if only your property is affected, the cause may be within your electrical panel or wiring system. Licensed electricians can use diagnostic tools to determine the source and coordinate with Manitoba Hydro if necessary.

Quick Reference: Common Causes of Flickering Lights

Flicker Cause	Severity	What To Do
Loose bulb or fixture	Low	Tighten or replace the bulb and check the socket
Faulty dimmer or switch	Medium	Replace dimmer or upgrade to compatible switch
Overloaded circuit	Medium	Move high-demand appliances or add a new circuit
Loose or damaged wiring	High	Contact a licensed electrician for inspection
Voltage drop from Manitoba Hydro	Medium	Report to Manitoba Hydro if issue affects multiple homes

This table helps homeowners quickly identify whether a flicker is minor or a potential hazard that requires immediate professional attention.

Diagnostic Steps Electricians Use

Professional electricians use testing equipment to trace the exact cause of flickering lights. During an inspection, our team may:

• Check fixture connections and switch integrity

• Measure voltage stability and circuit load

• Inspect the breaker panel for corrosion or damage

• Identify wiring that is loose, frayed, or improperly connected

These tests help isolate whether the problem lies in a single fixture, a circuit, or the broader electrical system.

When to Seek Immediate Help

Some signs indicate a problem that cannot wait:

• Lights flickering throughout the entire home

• A burning smell near outlets or panels

• Buzzing or popping sounds from switches

• Breakers that trip repeatedly

If you notice any of these, shut off power to the affected area and call an electrician immediately. Delaying repairs can lead to severe damage or electrical fires.

Call a Licensed Electrician in Winnipeg

At Platinum Power Solutions, our certified team provides fast, reliable service for electrical diagnostics and repairs. We operate 24/7 across Winnipeg, serving both residential and commercial clients.

If your lights are flickering or you suspect a deeper electrical issue, contact Platinum Power Solutions for an inspection today. Our experts will find the cause, fix it safely, and ensure your electrical system meets the latest Manitoba Electrical Code standards.