Panel Upgrades in Mercer Island, WA
Modern homes pull more power than 100-amp panels were built for. We upgrade to 200-amp service with clean, labeled, inspection-ready work.
Panel upgrades on Mercer Island have to account for the island's terrain as much as the house itself — a lakefront home near 18 feet of elevation and a ridge-top house near Rotary Park can both need a 200-amp upgrade, but the conduit run and access are rarely the same job twice.
Symptoms we see every week
- Breakers trip when the AC and oven run together
- Still on a 100-amp or fuse-based panel
- Adding an EV charger, heat pump, or ADU
- Panel is unlabelled or has doubled-up breakers
Spec'd to your Mercer Island home
We size every system to your actual demand — not a one-size guess. Here's what a typical panel upgrades includes:
| Service | 200A standard |
|---|---|
| Breakers | 40-space, 80-circuit |
| Surge | Whole-home included |
| Permit | Pulled & signed off |
Work we stand behind
25-year panel warranty, 5-year workmanship, and permit closure documentation provided.
Book this serviceEstimate your panel upgrades
Move the slider for a rough range. Final quote is confirmed on-site — no surprises.
Rough ranges for typical Mercer Island homes only. Your written quote is confirmed on-site.
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