100 to 200 Amp Service Upgrade

The classic West Michigan upgrade: 100-amp service to a modern 200-amp panel — room for the EV, the heat pump, the hot tub and whatever comes next.

Most homes built before the 1990s carry 100-amp service, and it was plenty — until EVs, heat pumps, induction ranges and finished basements arrived. A 200-amp upgrade isn't about using more power today; it's about capacity headroom so each new load doesn't trigger another project.

The upgrade replaces your service entrance, meter base and panel with 200-amp equipment, rebuilt grounding included, coordinated with the utility for the cutover and finished with a municipal inspection. Most homes are done in a single day with a planned outage window we schedule with you in advance. We start with a load calculation so the recommendation is math, not upsell — occasionally a 100-amp service with better load management is honestly enough, and we'll tell you when that's the case.

What's included

Frequently asked questions

How do I know if I need 200-amp service?
A load calculation tells you exactly. Common triggers: adding an EV charger plus any other large load, converting to a heat pump, an addition, or a panel already full of tandem breakers.
How long is the power off during the upgrade?
Typically part of one day. We coordinate the utility disconnect and reconnect in advance, so the outage is a planned window rather than an open-ended wait.
Do larger 320/400-amp residential services exist?
Yes — large homes with multiple big loads (pool, EVs, workshops, electric heat) sometimes warrant them. The load calculation drives that recommendation; most homes are well served by 200 amps.

More Residential Electrical

Where we do this work

Call (616) 550-9426 · or request a free written estimate.