Upgrade your outdated electrical panel to modern 200A, 320A, or 400A service. Ground Zero Electric provides licensed panel upgrades for Cincinnati homes and businesses — from fuse box replacements to complete service upgrades. We handle permits, Duke Energy coordination, and final inspection.
Signs You Need a Panel Upgrade
- Frequent circuit breaker trips
- You still have a fuse box
- Flickering or dimming lights when appliances turn on
- Adding an EV charger or major appliance
- Home is 25+ years old with original electrical
- Burning smell or warm panel
- Planning a renovation or addition
- Insurance company requiring an upgrade
Dangerous & Outdated Panels We Replace
If your home has one of these panel brands, replacement isn't optional — it's a safety issue. These panels have documented histories of failing to trip during overloads, leading to overheating, arcing, and house fires.
Federal Pacific / Stab-Lok
Federal Pacific Electric (FPE) panels with Stab-Lok breakers are one of the most common fire hazards in older homes. Independent testing found these breakers fail to trip up to 60% of the time during overcurrent events. FPE was found to have fraudulently obtained UL listing. If you have one, replace it — no exceptions.
Pushmatic
Pushmatic panels use push-button breakers instead of standard toggle breakers. Parts are discontinued, breakers are no longer manufactured, and these panels can't be safely expanded or serviced. The push-button mechanism becomes unreliable with age, and replacement breakers (when found) are often used or reconditioned — not safe for continued use.
Bulldog / ITE / Pushmatic-Bulldog
Bulldog panels (also branded as ITE or Pushmatic-Bulldog) share the same issues as Pushmatic — obsolete parts, unreliable breakers, and no path to modern code compliance. Many insurance companies will not cover homes with these panels, and home inspectors routinely flag them as replacement items.
Not sure what panel you have? Call (513) 866-8685 or request an assessment. We'll identify your panel, assess its condition, and provide a written estimate if replacement is needed.
What's Included
- Site assessment and load calculation
- Permit and inspection coordination
- Duke Energy coordination for service cable
- New breaker panel installation
- Circuit labeling and testing
- Whole-home surge protection (if requested)
- Cleanup and final walkthrough
Financing available through Klarna (up to $10K) and Wisetack (up to $25K) →
320A and 400A Service
200A is the standard for most modern homes, but some properties need more. If your home has multiple high-draw systems, 200A may not be enough.
When You Need More Than 200A
- Multiple EV chargers (each pulling 40-50 amps)
- Battery backup systems (Tesla Powerwall, Anker SOLIX) plus existing high loads
- Large homes with multiple HVAC systems
- Pool or hot tub plus other high-draw equipment
- Workshop with welders, compressors, or other industrial equipment
- Home additions that push the existing panel past capacity
- Homes converting from gas to all-electric (heat pump, electric water heater, electric range, EV charger)
How 320A and 400A Service Works
- 320A service - uses a single 320A meter socket and CT (current transformer) rated metering. Power feeds to a main distribution panel or meter-main combo. This is the most common upgrade beyond 200A for residential.
- 400A service - typically achieved with two 200A panels fed from a single 400A meter socket, or a 400A main breaker panel with subpanels. Common for large homes, multi-unit properties, and homes with significant shop or outbuilding power needs.
- Load calculation determines the answer - we perform a detailed load calculation based on your actual and planned equipment to determine whether 200A, 320A, or 400A is the right size. Oversizing wastes money. Undersizing means you'll be back for another upgrade.
Meter-to-Panel Process
A panel upgrade isn't just swapping the box on the wall. The full scope often involves everything from the meter to the last breaker.
- Meter socket - if you're upgrading to a higher amperage, the meter socket (where Duke Energy connects) must be replaced to match. A 200A panel requires a 200A meter socket. We install the new socket and weatherhead.
- Service entrance cable - the cable running from the meter socket to the panel must be sized for the new service. Going from 100A to 200A always requires new cable. The cable type (SE cable, conduit and wire, or underground) depends on your home's setup.
- Grounding system - the grounding electrode system must meet current code. This includes ground rods, bonding of water pipes, and proper grounding electrode conductor sizing. Older homes often need grounding upgrades as part of a panel replacement.
- Main panel - the new breaker panel, main breaker, and all branch circuit breakers. We transfer existing circuits, add any new circuits, and label every breaker clearly.
- Surge protection - NEC 2023 requires a surge protective device (SPD) on all new dwelling unit services. We include this as part of the upgrade. See our surge protection page for details.
Duke Energy Coordination
Panel upgrades in the Greater Cincinnati area require coordination with Duke Energy for the service cable connection. Here's how the process works.
- We apply for service - we submit a service application to Duke Energy specifying the new service size, meter socket location, and any changes to the service entrance.
- Duke Energy reviews - they review the application and confirm their transformer and service drop can support the requested load. In some cases, they may need to upgrade their transformer or run new service to your home.
- We install - we install the new meter socket, service entrance cable, panel, and all branch circuits. Duke Energy disconnects the old service before we begin and reconnects to the new equipment after we pass inspection.
- Inspection - the local building department inspects our work. Once passed, we schedule Duke Energy to reconnect power.
- Timeline - the Duke Energy coordination adds time to the project. From application to reconnection, allow 2-4 weeks depending on their schedule and whether any utility-side upgrades are needed. We manage this timeline for you.
What We Install
We primarily install Siemens panels for residential and commercial upgrades. Siemens panels are reliable, widely available, and have a strong track record in the field. That said, we're not exclusively committed to one brand - if your situation calls for something specific, we'll recommend what makes the most sense for your project.
- Siemens - our primary brand. Quality construction, good breaker availability, and compatible with a wide range of accessories including AFCI/GFCI breakers and whole-home surge protectors.
- Panel features we look for - copper bus bars, adequate space for AFCI/GFCI breakers (which are wider than standard breakers), room for future circuit additions, and compatibility with surge protection devices.
Span Smart Panel - Premium Upgrade Option
For homeowners who want circuit-level control, smart load management, and seamless battery integration, the Span Smart Panel is a premium alternative to a traditional breaker panel. Span replaces your standard panel with a smart panel that gives you remote control of every circuit, real-time energy monitoring, and PowerUp load management that can eliminate the need for a service upgrade when adding EV chargers or battery systems. We're an authorized Span installer. Learn more about Span →
Common Questions
Panel upgrades in Cincinnati typically start at $7,000+ and can range higher depending on complexity, service size, and whether the service cable needs replacement.
Most residential panel upgrades take 10–16+ hours of on-site work depending on the scope. Some complex jobs may require a second day.
Yes. Panel upgrades require an electrical permit and inspection. We handle all permitting as part of the project.
Yes, power will be off for a portion of the work. We plan the outage to minimize disruption and work to restore power the same day.
200A is standard for most modern homes. 320A or 400A is needed for larger homes with high electrical demand — multiple HVAC units, EV chargers, pools, workshops, etc.
If you're upgrading to a larger service (like 100A to 200A), the service cable from the meter to the panel will need to be replaced to handle the increased capacity. On a like-for-like replacement (200A to 200A), it depends on the cable's condition.
In some cases, yes — if your existing service is already 200A and you just need a new panel box. We'll assess during the estimate.
Not always, but often. Level 2 EV chargers draw 40-50 amps. If your panel doesn't have capacity, an upgrade is needed first.
Safety Questions
Fuse boxes aren't inherently dangerous if properly maintained, but they can't safely handle modern electrical demands. They also lack arc-fault protection that modern panels provide. Upgrading is strongly recommended.
Repeated tripping means the panel is being overloaded. Continued use can cause overheating, damaged wiring, and in worst cases, electrical fire. Don't ignore it — get it assessed.
Yes. A panel that's warm or hot to the touch indicates loose connections, overloaded circuits, or failing breakers. This is a fire hazard. Call a licensed electrician immediately.
