Half My House Has No Power. What Should I Do?

The kitchen lights are on, but the bedrooms are dark. The TV works, but the dryer won’t start. Or the lights in one room glow dim while the rest of the house seems fine. When only part of your home loses power, it’s confusing, because it isn’t a regular outage and it isn’t just one outlet.

Here’s what usually causes it, what you can safely check on your own, and when to make a call.

First, Is It a Safety Emergency?

Call for emergency help right away if you notice any of these:

• A burning smell, smoke, or scorch marks anywhere near your electrical panel, meter, or outlets
• Buzzing or crackling from the panel
• Lights that keep getting brighter and dimmer, or bulbs burning out suddenly
• Water near the panel or a recent flood in the basement

If you see smoke or flames, get everyone out and call 911.

Step 1: Check Your Electrical Panel

Open your electrical panel (the gray metal box, usually in the basement, garage, or a closet) and look for a breaker that’s in a different position from the others. A tripped breaker usually sits in the middle or flips toward “off.”

Pay special attention to the wide breakers with two handles joined together. Those feed bigger appliances like your dryer, stove, water heater, or central air. If one of those trips, you can lose those appliances while everything else keeps working.

To reset a breaker, push it firmly all the way to “off,” then back to “on.” If it trips again right away, leave it off. That means something on that circuit has a problem, and resetting it over and over can make it worse.

Step 2: Look for the Signs of a Utility Problem

Here’s something most homeowners don’t know: power comes into your house on two separate lines. If one of them fails, you lose roughly half of your house, and the big appliances that need both lines stop working or run weakly.

Signs it’s a problem on the utility’s side:

• No breakers are tripped, but half the house is out
• Lights in some rooms are dim or flickering
• The dryer, stove, or air conditioning won’t run, or runs weakly
• Neighbors on your street are having similar issues
• It started during a storm, high wind, or after a tree limb came down

If that sounds like your situation, call your utility first. In most of Central Jersey that’s JCP&L or PSE&G, depending on your town. Use their outage line and tell them you have “partial power” or “half power.” They’ll check the lines and the connection to your house at no charge.

Step 3: If the Utility Says It’s on Your Side

Sometimes the utility checks everything up to your house and finds their side is fine. That points to a problem on your property, which is where an electrician comes in. Common causes we find:

• A loose or burned connection at the meter. The meter box on the outside of your house can develop loose or corroded connections, especially on older homes.
• A failing main breaker. The large breaker at the top of your panel can wear out and stop passing power through one side.
• A loose connection inside the panel. Over time, connections inside the panel can loosen and overheat.
• Damaged wiring. Rodents, water, or an old repair can damage wires feeding part of the house.

These are not do-it-yourself repairs. The parts involved stay live even when your main breaker is off, so opening them up is genuinely dangerous without the right training and gear.

Why You Shouldn’t Wait

Partial power isn’t just inconvenient. When a connection is loose, it heats up. That heat can damage your panel, your meter box, or the wiring, and in the worst cases it starts a fire. Running appliances on “half power” can also damage motors in things like your air conditioner, well pump, or refrigerator.

If the lights are flickering or dim, turn off sensitive electronics and large appliances until it’s fixed.

What It Costs

We use flat, upfront pricing, so you know the number before we start.

• $259.99 for a service call with initial diagnosis during normal hours
• $389.99 for an after-hours emergency call, with no extra charge for nights, weekends, or holidays

If the fix turns out to be bigger, like a new meter box, main breaker, or panel, we stop and give you a written price before any further work. Panel replacements typically run $2,000 to $7,000 depending on the home. See our pricing page for more.

Frequently Asked Questions

Why does half my house have power and the other half doesn’t?

Most often it’s either a tripped breaker for a large appliance, or one of the two power lines coming into your home has failed. A failed line can be on the utility’s side or at your meter or panel.

Who do I call first, the utility or an electrician?

If no breakers are tripped and the lights are dim or flickering, call your utility first. Their check is free. If they say their side is fine, call an electrician.

Is it safe to stay in the house?

Usually yes, as long as there’s no burning smell, smoke, or buzzing from the panel. Turn off big appliances and electronics until the problem is fixed.

Can a storm cause partial power?

Yes. Wind and falling branches can damage the line running to your house, which often causes exactly this problem. It can also damage your meter box or the pipe on the side of your house where the line connects.

Need Help Getting Your Power Back?

Spartan Home Pros is a licensed and insured electrical service company with real people answering the phone 24 hours a day.

• Monmouth and Middlesex: 732-585-6560
• Somerset and Union: 908-287-2187
• Morris and Essex: 908-493-9223

Related reading: Why does my breaker keep tripping? and Signs you need to replace your electrical panel