How long does a service upgrade take?

Most residential heavy-ups take a single day, with the power off for roughly four to six hours. Older homes that need a new meter base or grounding bring that closer to a day-and-a-half.

Yes — every service upgrade in Frederick County requires a permit and a final inspection. We pull it, schedule the inspection, and meet the inspector on site.

Heavy-Ups

Service Upgrades

When the panel is the bottleneck, we replace it.

Old 100-amp panels and Federal Pacific boxes can't keep up with modern loads — heat pumps, EV chargers, induction ranges, and full-house renovations all want amperage your meter base never planned for. We pull a permit, coordinate the utility cut, and bring the whole service up to current code.

What that looks like on a real job.

100A → 200A or 400A residential service upgrades
Replacement of recalled Federal Pacific & Zinsco panels
Coordination with Potomac Edison / FirstEnergy for meter swaps
Particular experience with historic Frederick homes
County permits & inspection handled end-to-end

Common Questions

What people ask first.

How long does a service upgrade take?: Most residential heavy-ups take a single day, with the power off for roughly four to six hours. Older homes that need a new meter base or grounding bring that closer to a day-and-a-half.
Do I need a permit?: Yes — every service upgrade in Frederick County requires a permit and a final inspection. We pull it, schedule the inspection, and meet the inspector on site.

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General Service Work

EV Chargers