Signs You Need a Panel Upgrade in Myrtle Beach, SC

Most Myrtle Beach homeowners do not think much about their electrical panel. It lives in a utility room or garage, runs quietly in the background, and gets noticed only when something goes wrong. That is how it should work. But when an electrical panel reaches the end of its useful life, or when a home’s electrical load outgrows what the panel was designed to handle, the warning signs start showing up — and ignoring them costs money, causes frustration, and in the most serious cases, creates genuine safety risks.

This guide covers the ten most common signs that a panel upgrade is overdue for Myrtle Beach homeowners, explains why older homes in this market are particularly affected, and walks through what the upgrade process looks like when it is time to move forward.

Greg Beverly Services provides electrical panel upgrades throughout Myrtle Beach, Murrells Inlet, and the Grand Strand.

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Why Panel Upgrades Are Especially Common in Myrtle Beach

Myrtle Beach has a housing stock that spans several distinct eras. The earliest residential neighborhoods were built in the mid-20th century, many of them during the boom years of the 1960s and 1970s when the Grand Strand first became a major tourist and retirement destination. Subsequent waves of construction brought significant building activity in the 1980s, 1990s, and early 2000s.

Homes from the 1960s through 1990s were built to electrical code standards of their time, which meant designing systems to handle the electrical loads typical of those decades. A 1975 home was built around an electrical load that included a central furnace, a water heater, a refrigerator, a stove, a washer and dryer, and maybe window air conditioning units. That same home today might be running a central heat pump, an on-demand water heater, multiple refrigerators, a dishwasher, a wine cooler, a whole-home entertainment system, multiple home office setups, and soon an EV charger. The electrical load has increased dramatically. The panel, in many cases, has not kept up.

The other factor unique to coastal markets is storm-related wear. Myrtle Beach panels and electrical infrastructure are exposed to high humidity, salt air, and the periodic effects of severe weather. These environmental conditions accelerate corrosion and wear on electrical components in ways that homeowners in inland markets do not experience at the same rate.

10 Signs Your Myrtle Beach Home Needs a Panel Upgrade

1. Your Breakers Trip Frequently

An occasional breaker trip is a normal function of the protection system. A circuit breaker trips when more current flows through it than it is rated to carry, cutting power to protect against overheating and fire. That is it doing exactly what it is supposed to do.

What is not normal is breakers tripping regularly, especially on circuits that have not changed. If the breaker for your kitchen, your HVAC, or your home office trips once a week or more without any obvious change in usage, the panel is struggling to manage the load. Before assuming the appliance is the problem, the panel deserves a look.

Repeated tripping can also indicate a failing breaker, which is a different problem but equally worth addressing.

2. Lights Flicker or Dim When Appliances Run

If the lights in your living room dim every time the air conditioning kicks on, or flicker when you run the dishwasher and the microwave simultaneously, the panel is experiencing voltage fluctuations that suggest it is being taxed beyond its comfortable operating range. Some dimming on HVAC startup is normal in older systems, but persistent flickering or significant dimming is a sign of inadequate capacity or, in some cases, loose connections at the panel.

3. You Have a 100-Amp Service Panel

100-amp service was the residential standard through most of the 1970s and early 1980s. If your Myrtle Beach home still has a 100-amp panel and you have not specifically had an electrician evaluate whether it can support your current load, this alone is worth having assessed.

A 100-amp panel in a small home with modest electrical demands may still be technically adequate. A 100-amp panel in a home with modern HVAC, a heat pump water heater, multiple large appliances, smart home systems, and a request for an EV charger is almost certainly not.

4. You Have a Fuse Box Instead of a Circuit Breaker Panel

Fuse boxes predate circuit breaker panels and are found in homes built or last updated before the 1960s. While they are not inherently dangerous if properly maintained, they indicate an electrical system that has not been updated in at least 60 years and almost certainly has other outdated components.

Fuses must be replaced when they blow rather than simply reset, and they do not offer the overcurrent protection performance of modern circuit breakers. Homes still on fuses are generally at higher risk for electrical problems, and insurance companies are increasingly reluctant to provide standard coverage for them.

5. You Smell Burning or Notice Scorch Marks Near the Panel

A burning smell coming from the area of your electrical panel, or scorch marks visible on the panel face, breakers, or nearby surfaces, is a serious warning sign that should not be deferred. This indicates that the panel is running hot in ways that can degrade insulation, damage components, and create fire risk. If you notice either of these signs, contact a licensed electrician promptly.

6. The Panel Is Warm or Hot to the Touch

Electrical panels carry current and generate some heat as a normal part of operation. A panel that is noticeably warm to the touch on the exterior, or that emits significant warmth from around the door, is running hotter than it should. Excessive heat is a sign of overloaded circuits or failing components.

7. You Are Planning to Add an EV Charger or Standby Generator

Both of these are high-demand additions that require dedicated circuits with significant amperage. A Level 2 EV charger typically requires a 50-amp dedicated 240-volt circuit. A standby generator requires a transfer switch installation and sufficient panel capacity to manage the switchover load.

When we assess a Myrtle Beach home for an EV charger installation or a generator installation, the panel is the first thing we evaluate. If the panel lacks the capacity or the available breaker slots for the new addition, a panel upgrade becomes part of the project. Planning both together is more efficient and cost-effective than doing them in sequence.

8. You Are Undertaking a Major Renovation or Addition

Kitchens, primary bedroom suites, sunrooms, home offices, garage conversions, detached accessory dwelling units, and workshops all add meaningful electrical load. Before starting a major renovation, a panel capacity assessment is worthwhile so the new construction is wired with the full picture in mind from the start. Trying to add capacity after a renovation is always more disruptive and expensive than planning for it upfront.

9. Your Panel Has No Available Breaker Slots

A fully occupied breaker panel — every slot taken — cannot accommodate new circuits without first creating capacity. Options include adding a subpanel to expand the available slots, or upgrading to a larger service panel that provides more circuits from the start. When we see a fully occupied panel in a Myrtle Beach home, we discuss both options and recommend what makes sense for the home’s current and anticipated needs.

10. You Have Specific Brands Known for Performance Issues

Certain panel brands and models produced in the 1970s and 1980s have documented histories of performance issues that have prompted recalls or elevated safety concern. If you own an older Myrtle Beach home and are not certain about the panel’s history, a licensed electrician can identify the manufacturer and advise whether the panel warrants replacement on this basis.

Understanding Panel Capacity: 100 vs. 150 vs. 200 Amps

Electrical service panels are rated by the total amperage they can deliver to the home. Here is how the most common residential service sizes compare:

100-amp service: The pre-1980s residential standard. Adequate for a modest home with limited modern electrical loads. Inadequate for most contemporary households with modern HVAC, appliances, home offices, and any high-demand additions.

150-amp service: An intermediate size found in some homes built between roughly 1980 and 2000. Better than 100-amp, but still limiting for homes adding significant new loads. Many 150-amp panels that were installed at the time of construction are now at or near capacity with the loads those homes carry today.

200-amp service: The current residential standard and the recommended upgrade target for most Myrtle Beach homes that need a panel replacement. 200-amp service provides comfortable headroom for modern electrical loads, EV chargers, generators, and significant future additions.

400-amp service: Used for very large homes with exceptionally high electrical demands, homes with multiple separate electrical services, or properties running commercial-level loads. Not typically required for standard residential upgrades.

For most Myrtle Beach homeowners upgrading from a 100-amp or 150-amp panel, 200-amp service is the right destination.

When Code Requires a Panel Upgrade

South Carolina electrical code requires that electrical work meet current standards. In some situations, a panel upgrade is not optional but a code requirement:

• Installing a new service entrance, meter base, or utility connection
• Completing certain major renovations that trigger a full electrical permit
• Adding equipment that cannot be safely accommodated by the existing panel under current code

Greg Beverly Services coordinates all panel upgrade work with the required permits and inspections. The permit record confirms to you and any future buyer that the work was done to current code standards.

The Panel Upgrade Process

Understanding what a panel upgrade involves helps Myrtle Beach homeowners plan and budget appropriately.

Initial assessment. A licensed electrician evaluates your current panel, assesses your home’s electrical load, and identifies any existing issues that need to be addressed alongside the upgrade.

Utility coordination. Upgrading service to 200-amp requires coordination with the electric utility — specifically, the utility controls the meter and service entrance, and their involvement is required before work begins. We handle this coordination on your behalf.

Permitting. Panel upgrades require electrical permits. We submit the permit application and manage the inspection process.

Panel replacement. Power to the home is shut off for the duration of the work. The old panel is removed, the new service panel is installed and wired, all circuit connections are transferred, grounding and bonding is updated to current code, and the service entrance is updated as needed.

Surge protection. We strongly recommend installing whole-home surge protection at the time of the panel upgrade. The coastal South Carolina environment is active with lightning, and installing surge protection during the panel upgrade is the most efficient and cost-effective approach. It protects every circuit in the home from a single installation at the panel.

Final testing and inspection. Every circuit is tested after the upgrade. The work is inspected by Horry County, and the permit is closed after the inspection is approved.

Cost Factors for Panel Upgrades in Myrtle Beach

Panel upgrade costs vary based on several factors, and we do not publish standard pricing because the right number for your home depends on specifics we need to assess in person. Key cost variables include:

• The current service size and what it is being upgraded to
• The panel brand and configuration selected
• The scope of utility coordination needed (some utility-side upgrades are required)
• Whether the service entrance and meter base need to be updated
• Whether surge protection is included
• Whether any circuit rewiring is required to meet current code
• The overall condition of the existing electrical infrastructure

Contact us for a free estimate. We assess your home, explain our recommendations clearly, and provide a detailed quote before any work begins.

Why Choose Greg Beverly Services for Panel Upgrades in Myrtle Beach

Greg Beverly Services has been performing panel upgrades across the Grand Strand for over 40 years. We are based in Murrells Inlet and serve Myrtle Beach as one of our core markets.

Every panel upgrade we perform is completed by licensed South Carolina electricians, fully permitted, and inspected before the job is closed. We do not cut corners on permitting. The permit record protects your investment, confirms code compliance, and is especially important when the time comes to sell the property.

We also coordinate EV charger installations, generator installations, and surge protection as companion projects when they are part of the same scope. If your panel upgrade is driven by a specific new addition, we plan the full project together from the start.

Frequently Asked Questions

How long does a panel upgrade take in Myrtle Beach? Most residential panel upgrades are completed in a single day. The power will be off for a portion of that day while the work is completed. Larger or more complex projects may take longer.

Will the panel upgrade require my power to be off? Yes. Power to the home is shut off for the duration of the panel replacement work. We complete the work as efficiently as possible to minimize the disruption, and the power is typically restored the same day.

Do I need to be home during the panel upgrade? It is helpful to be available at the beginning and end of the job, but we can discuss the specifics when scheduling.

Will a panel upgrade affect my homeowner’s insurance? Upgrading an older panel or replacing a panel from a brand with documented issues may positively affect your insurance situation. Check with your insurance provider for specifics.

How do I know if my panel brand is one with known issues? Contact us. During an assessment visit, we can identify your panel manufacturer and advise whether there are specific concerns associated with it.

Is financing available for a panel upgrade? Contact us to discuss payment options. We do not publish financing terms but can discuss what is available when we provide your estimate.

If your Myrtle Beach home is showing any of the signs in this guide, or if you are planning to add an EV charger, generator, or significant renovation, contact Greg Beverly Services for a free electrical assessment. We serve Myrtle Beach, Murrells Inlet, Surfside Beach, Garden City, Pawleys Island, and the entire Grand Strand.

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