How much does it cost to upgrade a 100-amp electrical panel to 200-amp service before finishing a basement in Fredericton in 2026?

Upgrading from 100-amp to 200-amp electrical service in Fredericton typically costs $2,500–$4,500 in 2026, depending on the complexity of the work and whether the utility connection needs to be upgraded at the same time.

This is one of the most common pre-renovation upgrades in Fredericton homes, particularly in houses built between the 1960s and 1990s. Many of these homes were wired for 100-amp service — which was adequate at the time but falls short once you add a basement bathroom, home theatre, dedicated circuits for a dehumidifier, electric heating zones, or a home gym. Before you frame a single wall, it's worth confirming your panel can handle the additional load.

What Drives the Cost

The panel swap itself — removing the old 100-amp panel and installing a new 200-amp panel with breakers — typically runs $1,500–$2,500 in labour and materials. Where costs climb is the utility side. NB Power must upgrade the service entrance (the weatherhead, meter base, and service cable from the street) if it's still rated for 100-amp. That utility coordination and inspection can add $500–$1,500 depending on whether your service entrance needs physical replacement or just a meter base upgrade. In older Fredericton neighbourhoods — Skyline Acres, Brookside, Devon — this is common.

You'll also need an electrical permit from the City of Fredericton, which processes permits through its own building inspection department (typically 1–3 weeks). A licensed electrician will pull the permit, and the work requires a New Brunswick Power disconnect and reconnect, which adds a half-day scheduling dependency. Budget for that timing — NB Power reconnects aren't always same-day.

Why This Matters for Your Basement

A basement renovation adds meaningful electrical load: dedicated 15-amp circuits for bedrooms, 20-amp circuits for a bathroom or kitchenette, GFCI protection on all basement outlets, AFCI protection on bedroom circuits, smoke and CO detectors, and potentially a sub-panel if your basement is large or at the far end of the home. If your existing 100-amp panel is already near capacity with your main floor and HVAC, adding basement circuits without upgrading is a code and safety problem — not just a capacity inconvenience.

A 200-amp upgrade also future-proofs the home for EV charging, heat pumps, and any other high-draw additions. In Fredericton's housing market, a 200-amp panel is increasingly expected by buyers.

Practical Tips

Get 2–3 quotes from licensed NB electricians before committing — pricing in Fredericton varies more than you'd expect for this scope of work. Ask each electrician specifically whether the NB Power service entrance needs replacement, because that's the variable that most affects final cost. Confirm they'll handle the permit and NB Power coordination — a reputable electrician will do both as part of the job. Timing matters too: schedule this upgrade before your basement framing starts so the electrician has clear access to the panel and service entrance without working around finished walls.

All electrical work in New Brunswick requires a permit and inspection — no exceptions, and no reputable contractor will suggest otherwise.

If you need help finding a licensed electrician or a basement renovation contractor in Fredericton, the New Brunswick Construction Network at newbrunswickconstructionnetwork.com can connect you with local trades. New Brunswick Basements can also match you with a basement renovator who can coordinate the full scope of your project, including electrical upgrades, as part of a single renovation plan.