Electrical Panel Upgrades for Modern New Jersey Homes

An electrical panel upgrade replaces your home's main breaker panel (also called the breaker box, load center, or service panel) and often increases the total amperage coming into your home — for example, from 100 to 200 amps, or from 200 to 400 amps. This gives your home more electrical capacity to safely support modern loads like EV chargers, heat pumps, solar, and additional circuits.

200 amps is the modern standard and handles most homes with an EV charger, central AC, and standard appliances. 300 amps suits larger homes with multiple high-draw loads — two EV chargers, a heat pump, electric cooking, and a hot tub. 400 amps is for very large homes, homes with solar plus battery backup, dual EV chargers, electric vehicle fleets, or outbuildings with significant loads. We perform a load calculation to recommend the right size for your home.

A 200-amp service panel upgrade typically ranges from $2,500 to $5,000 depending on the complexity of the job, whether the meter and service entrance need updating, and local permit requirements. A 300-amp upgrade generally runs $4,000–$7,000, and a 400-amp upgrade from $6,000–$12,000+. We provide free, itemized quotes so you know exactly what you're paying for.

Often, yes. A Level 2 EV charger adds a continuous load of 16–48 amps. If your current panel is 100 amps or less, or is already near capacity, a service upgrade to at least 200 amps is usually needed to safely support the charger. We assess your panel during your free consultation and tell you exactly what's required.

Common signs include frequent breaker trips, flickering lights, a panel that feels warm or smells burnt, lack of available breaker slots for new circuits, a panel older than 25 years, or the need to add a major load like an EV charger, hot tub, heat pump, or solar. If you have an outdated Federal Pacific or Zinsco panel, replacement is strongly recommended for safety.

Most residential panel upgrades are completed in one day. If the service entrance, meter base, or underground feed also needs updating, or for larger 300/400-amp services, it may take one to two days. We coordinate all permits and utility requirements so the project stays on schedule.

Yes. We size and upgrade panels to support solar interconnection, electric heat pumps, hot tubs, EV chargers, battery storage, and any other modern electrical loads. We calculate your future needs so your upgraded panel is ready for what's next.

Yes. Vaccarella Electrical Services pulls all required town permits and coordinates the electrical inspection for your panel upgrade. Your installation will be fully code-compliant and signed off by the local inspector — and we coordinate with the utility when the service entrance or meter needs updating.

Yes, power must be shut off while the panel is being replaced — typically for 4 to 8 hours during the day. We schedule this at a time that works for you and complete the work efficiently to minimize downtime. For larger 300/400-amp upgrades, we may stage the work to keep outages as brief as possible.

A complete upgrade includes the new panel and main breaker, updated grounding and bonding, new breakers (including AFCI/GFCI where required), a new meter base if needed, an updated service entrance cable, and all permits and inspections. We handle every part of the job from start to finish.