Electrical Infrastructure
Electrical Infrastructure | Electric Panel Upgrades | Electrical | Charleston
Charleston’s historic charm hides an ever-growing demand for power-hungry appliances, EV chargers, and smart-home devices. HEP’s master electricians make sure your Lowcountry home or business stays ahead of the curve with precise, code-compliant electric panel upgrades that eliminate nuisance tripped breakers, open the door to future expansions, and safeguard sensitive electronics from surges. We evaluate load requirements, replace outdated fuse or split-bus panels, and install modern breaker boxes with AFCI/GFCI protection—often in a single day—so you enjoy uninterrupted comfort without sacrificing safety.
From the first walkthrough to the final inspection, you’ll feel the difference a locally owned contractor provides. We pull all permits, coordinate power shutoffs with the utility, and leave your space spotless. Whether you’re remodeling a 1920s downtown cottage or powering up a new waterfront workshop, trust HEP to deliver electric panel upgrades that quietly empower everything you plug in tomorrow.
FAQs
Why might I need an electric panel upgrade in Charleston?
Modern homes use far more electricity than the 60- or 100-amp panels installed decades ago can safely handle. Upgrading to a 150- or 200-amp service allows you to run high-demand appliances (HVAC, EV chargers, tankless water heaters, etc.) without tripping breakers or risking overheated wiring. It also brings your service up to the latest National Electrical Code (NEC) and City of Charleston safety standards, which can help prevent electrical fires and provide capacity for future renovations.
How can I tell if my current panel is outdated or unsafe?
Common warning signs include frequent breaker trips, flickering lights, burn marks or a burning odor around the panel, warm breaker handles, and the presence of obsolete brand names such as Federal Pacific or Zinsco. Panels over 25–30 years old often lack today’s required grounding and arc-fault/ground-fault protection. A licensed Charleston electrician can perform a load calculation and infrared scan to confirm whether your panel is overloaded or deteriorating.
What is involved in an electric panel upgrade and how long does it take?
The process starts with a site visit, load calculation, and permit application. On installation day, power is disconnected, the old panel and service meter are removed, and new service conductors, grounding electrodes, and a 150- or 200-amp panelboard are installed. All circuits are re-terminated, labeled, and tested before the utility reconnects power. Most standard upgrades are completed in one full workday, although large homes or extensive rewiring can take two days. Final inspection by the City of Charleston usually occurs within 24–48 hours.
Do I need permits or inspections for a panel upgrade in Charleston?
Yes. The City of Charleston Building Inspection Division requires an electrical permit for any service or panel change. A licensed electrical contractor must submit the permit, schedule rough-in (if needed) and final inspections, and ensure the work complies with the 2023 NEC as adopted by South Carolina. The utility company (Dominion Energy or Berkeley Electric) will not reconnect service until the city inspector releases the job.
How much does an electric panel upgrade cost in the Charleston area?
Prices vary by amperage, panel location, and the condition of existing wiring, but most single-family panel upgrades range from $1,800 to $3,500. Factors that can increase cost include relocating the panel, upgrading the service drop, repairing code violations, or adding whole-house surge protection. Your electrician should provide a written, itemized quote that includes labor, materials, permit fees, and utility coordination.
Will upgrading my electric panel add home value or lower insurance premiums?
Yes. Real-estate appraisers and buyers view a modern 200-amp panel as a strong selling point, especially in older Charleston neighborhoods. Some insurance carriers apply surcharges or deny coverage for homes with outdated or recalled panels. Upgrading can eliminate those extra costs and may qualify you for safety discounts. Additionally, a larger panel makes it easier and cheaper to add future amenities like solar PV or an electric vehicle charger, enhancing overall property value.