Menu
banner

When half of your house loses power, it can be both confusing and disruptive. This situation, known as…

4.9 RATING
4.9 RATING
4.9 RATING
Dec
12, 2025

Why Half of My House Lost Power: The Real Reasons Behind Partial Outages

When half of your house loses power, it can be both confusing and disruptive. This situation, known as a partial power outage, affects only one part of the house while other rooms are powered just fine. For instance, the kitchen and living room may be powered, but the garage and outdoor areas may be in darkness. Homeowners often seek answers as to why this situation happens.

Here at Mr. Electric, we’re renowned for delivering electrical troubleshooting and repairs for decades. Our licensed electricians have the expertise to help you figure out this mystery. Read on to learn why this might happen and what to do when you encounter a partial power outage.

  • Overloaded Circuits

Modern homes rely on more appliances and devices than ever before, but older wiring may not be built to handle the increased demand. If a single circuit becomes overwhelmed, it may trip repeatedly or partially fail. This can leave some outlets or fixtures without power while others continue to function normally on different circuits. It’s a good idea to call a nearby electrical service to install dedicated circuits to avoid overloading.

  • Loose or Damaged Wiring

Partial outages point to a wiring problem serving a specific section of your home. Over time, wires can loosen due to vibration, thermal expansion, or poor-quality installations. In some cases, wires become damaged from rodents, corrosion, or age-related deterioration. When the connection is weak, it may intermittently disrupt power or reduce voltage to part of your electrical system. Loose wiring is both an inconvenience and a major fire hazard.

image

This problem is common in older homes with outdated wiring like aluminum wiring or knob-and-tube wiring. If you live in an older home and your wiring has never been updated, it may be time to call a local electrical company for electrical troubleshooting before the situation escalates.

  • A Faulty Breaker or Panel Issue

If a single breaker becomes weak or begins to fail, it may supply inconsistent power or stop functioning altogether. Sometimes the problem isn’t the breaker but the bus bar. A corroded or burnt bus bar can lead to repeated partial outages and poses a serious safety risk. Because panel-related issues can escalate quickly, they require professional attention by a licensed electrician.

Our Service

No matter the size or complexity of your residential or commercial project, you can count on us to provide professional, high-quality results.

image

Smoke Detector Replacement

For professional and cost-effective smoke detector replacement in Waxahachie, TX, rely on the qualified and experienced electricians at Mr. Electric. Our…

image

Pool Heater Installation

Are you tired of waiting until June or July to enjoy your swimming pool? If you want to get the most…

image

Electrical Troubleshooting

Dealing with electrical problems can be frustrating and challenging for busy families and businesses. At Mr. Electric of Dallas, we are…

image

Electrical Inspection

Has it been too long since your last appointment with a qualified electrician? Sometimes, damaged circuits, outdated wiring…

image

Smart Home System Installation

Are you looking for creative ways to decrease your monthly energy usage while improving the convenience and comfort of your living…

  • Utility Problems on One Phase

Most homes receive power through two “hot” lines, or phases. If the utility company’s equipment fails on one of those phases, it can create a partial outage where half your circuits lose power while the others remain unaffected. Weather events, transformer issues, or damaged service lines can all cause this type of problem. In these cases, your home appears to have power, but only on one side of the electrical system.

  • Defective Outlets, Switches, or Junction Boxes

Sometimes the cause is more localized. A failing outlet, burnt switch, or overloaded junction box may interrupt power to only the parts of the home connected to that specific branch. These components may show signs of heat damage, buzzing sounds, or discoloration before failing completely. Call a local electrician for an inspection if you’ve noticed signs of damaged outlets or switches.

Get in Touch with Mr. Electric for No Power Repair Service

When you’re dealing with electrical issues, including a partial power outage, it’s important to call a nearby electrician in Lancaster, TX as soon as you can. That’s why the team at Mr. Electric stands out. We bring expertise, experience, and reliable service to homeowners and businesses across the areas we serve. When you call us for electrical troubleshooting, you can expect quality workmanship, fast response times, upfront pricing, and a satisfaction guarantee. Whether it is damaged wiring, circuit breaker malfunction, loose connections, or circuit issues, we’ll find the cause of the problem and fix it right the first time. Contact us today to book an appointment for no power repair with our skilled electricians.

Recent Blog Posts & Updates.

469-634-0316
Jan 23, 2026

When an Electrical Inspection Is the Smartest Home Upgrade

Electrical inspections might not be something many of us think about every day, but they’re an integral part of maintaining electrical safety and efficiency. As seasoned electricians in Dallas, TX, we’ve seen firsthand the kind of problems associated with neglected electrical systems. Do not…

Read More
Jan 14, 2026

Is Upgrading Electrical Circuits Worth the Investment?

Electrical circuits are responsible for distributing power from the main panel to lights, outlets, and appliances. Upgrading electrical circuits may not be something you often think about. Just like electrical panels, circuits can last between 25 and 35 years. However, modern homes have increased power…

Read More
Jan 06, 2026

Keeping Your Business Running: Preventing Electrical Downtime

There’s a lot that goes into keeping a business running smoothly, and one of the overlooked elements is a reliable electrical system. Business downtime due to electrical failures can eat into your profits and erode customer trust. A preventive approach is key to keeping operations…

Read More
Jan 01, 2026

How a Generator Protects Your Home During Outages

When power goes out, everything in a home comes to a halt. All rooms plunge into darkness, air conditioning systems stop working, security cameras go off, and the fridge stops working. This highlights the importance of having a reliable backup source of power. You’ll be…

Read More