Capacity That Matches Modern Loads
Residential Panel Upgrades and Service Changes in Fond du Lac for homes with insufficient electrical capacity, outdated panels, or planned additions
Homes built before modern electrical demands became standard often operate on 100-amp or smaller services that struggle to support air conditioning, electric vehicle charging, updated kitchens, and multiple electronics running simultaneously. Panel upgrades and service changes address this limitation by replacing undersized panels with higher-capacity equipment and, when necessary, increasing the service entrance amperage to match. Cornerstone Electrical Services, LLC performs this work on older homes throughout Fond du Lac, where many residential properties still carry original electrical systems from decades past.
A service change involves coordinating with the utility company to install a new meter base and service drop connection, replacing the main panel with a unit that provides more circuit spaces and higher amperage capacity, and verifying that the grounding system meets current code. Panel-only upgrades replace the interior distribution panel while retaining the existing service entrance, appropriate when the service amperage is adequate but the panel itself is full, damaged, or uses obsolete components.
Schedule a panel upgrade or service evaluation to determine what your home's electrical system needs to support current and future loads.
What Changes After Panel Replacement
Panel upgrades involve removing the old panel, installing a new enclosure with modern circuit breakers, reconnecting existing circuits, and labeling each breaker clearly. Service changes add the step of replacing exterior service equipment and coordinating a temporary power outage with the utility while the meter is swapped. Homes with aluminum wiring, ungrounded outlets, or outdated sub-panels may need additional work to bring the entire system up to code during the upgrade.
Once finished, your home operates without breakers tripping from normal appliance use, new high-demand equipment like heat pumps or EV chargers can be added on dedicated circuits, and the panel has room for future circuits without requiring another replacement. Modern arc-fault and ground-fault breakers provide safety features that weren't available in older panels, and clearly labeled circuits make troubleshooting straightforward when issues occur.
The work also includes inspecting the main grounding electrode connection, updating it if necessary, and confirming that all circuits are properly terminated with secure connections. Older panels sometimes have loose connections that create heat and failure risk, and panel replacement corrects these issues before they cause damage.
Homeowners considering panel upgrades typically ask about the scope of work, timing, and what the process involves.
Answers to Frequent Service Questions
What size service do most homes need today?
Many homes function well with 200-amp service, which provides capacity for standard appliances, central air, and room for future additions, though homes with electric heat, large workshops, or EV charging may benefit from larger services.
How long does a panel upgrade take in Fond du Lac homes?
Most panel replacements complete in one day, though service changes requiring utility coordination may involve scheduling the utility disconnect and reconnect as separate steps, sometimes adding a day to the overall timeline.
When is a full service change necessary versus just replacing the panel?
If your current service is 100 amps or less and you're adding significant new load, or if the exterior service equipment is damaged or outdated, a full service change provides the capacity needed, whereas panel-only upgrades work when the existing service size is adequate.
Why do older panels sometimes need replacement even when they aren't full?
Some panel brands have known defects or safety issues, others use breaker types no longer manufactured, and panels exposed to moisture or physical damage may have internal corrosion that compromises safety even if they still function.
What happens to existing circuits during a panel upgrade?
All existing circuits are disconnected from the old panel, reconnected to new breakers in the replacement panel, tested for proper operation, and labeled to identify what each circuit controls.
Cornerstone Electrical Services, LLC handles the utility coordination, inspection scheduling, and installation work required for residential service upgrades and panel replacements. Reach out to review your home's current electrical capacity and discuss options for upgrading to meet modern demands.