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How do I know if my house in New Brunswick needs a panel upgrade?

Question

How do I know if my house in New Brunswick needs a panel upgrade?

Answer from Electric IQ

Signs Your New Brunswick Home Needs an Electrical Panel Upgrade

Your electrical panel is the heart of your home's electrical system — it distributes power to every circuit and protects against overloads and short circuits. Many homes across New Brunswick are running on outdated panels that can't keep up with modern electrical demands.

Warning Signs You Need an Upgrade

1. Your panel is 60 or 100 amps
Check the number on your main breaker. If it reads 60A or 100A, your panel was sized for a home that used far less electricity than today's households. Modern homes in NB with electric heat, a dryer, hot water tank, and typical appliances need at least 200 amps. If you're adding an EV charger, hot tub, or heat pump, 200A is the minimum.

2. You still have a fuse box
Screw-in fuses and cartridge fuses were standard through the 1960s. Fuse boxes aren't inherently dangerous, but they're limited to 60A service in most cases, can't accommodate AFCI or GFCI breakers, and are easily abused — overfusing (putting a 30A fuse on a 15A circuit) is extremely common and dangerous. Insurance companies in NB increasingly require replacement.

3. Breakers trip frequently
If you're constantly resetting breakers — especially when running normal appliances — your circuits are overloaded. This means either too many loads on one circuit or the panel itself can't handle your total demand.

4. You see Federal Pacific (Stab-Lok) or Zinsco breakers
These brands have documented failure rates. Federal Pacific Stab-Lok breakers have been shown to fail to trip during overcurrent conditions up to 60% of the time in independent testing. If your panel has either brand, replacement is strongly recommended regardless of panel age. Both are found in NB homes built in the 1960s–1980s.

5. You're planning additions or major appliances
Adding an EV charger (40–50A), heat pump (30–60A), hot tub (40–50A), workshop (60–100A sub-panel), or in-law suite all require significant available amperage.

6. Burn marks, rust, or corrosion on the panel
Any discolouration, melted plastic, corrosion, or burning smell from your panel is an emergency. Turn off the main breaker and call a licensed electrician immediately.

What a Panel Upgrade Involves

A typical upgrade from 100A to 200A in a New Brunswick home includes:

  • NB Power disconnects your service (coordinated by your electrician)

  • Electrician installs a new 200A panel, typically 40–42 circuit spaces

  • All existing circuits are transferred to the new panel

  • New main breaker, grounding, and bonding installed to current CEC standards

  • TSANB inspection before NB Power reconnects

  • Total time: 1–2 days, power off for 4–8 hours
  • Costs in New Brunswick

    | Upgrade Type | Typical Cost |
    |--------------|--------------|
    | 100A to 200A panel swap (same location) | $2,500–$4,000 |
    | 60A fuse box to 200A panel | $3,000–$5,000 |
    | Panel + meter base + mast (full service upgrade) | $4,000–$6,500 |
    | Sub-panel addition (garage, workshop, suite) | $1,200–$2,500 |

    NB Power may need to upgrade the service drop (the wire from the pole to your house) if the existing one can't handle 200A. This is typically at NB Power's expense for the line work, but the homeowner pays for the mast, meter base, and weatherhead on the house side.

    TSANB Permit Process

    Panel upgrades always require a TSANB electrical permit. The process:

  • Your electrician applies for the permit (often online)

  • Work is completed

  • TSANB inspector visits to verify the installation

  • Inspector approves and notifies NB Power to reconnect

  • Typical inspection wait time: 3–5 business days in Moncton, Saint John, and Fredericton; potentially longer in rural areas
  • Should You Wait?

    If your panel is working and you're not adding major loads, a 100A panel can continue to serve a smaller home safely. But if you're experiencing any of the warning signs above, or if your insurance company is asking questions about your electrical, don't delay. Panel failures cause fires, and the cost of an upgrade is modest compared to the risk.

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