Electrical Panel Upgrades & Service Changes in Snohomish & King County
Drive through any neighborhood between Everett and Bellevue and you’ll see the whole history of Puget Sound housing in a few blocks — ramblers and split-levels from the 1960s and 70s, farmhouses that predate them, 90s developments, and brand-new construction going up next door. We work in all of them, and their electrical panels tell the same story: a lot of these homes were wired for a world before heat pumps, EV chargers, hot tubs, and home offices existed.
Mauro Electric Inc. has been upgrading and modernizing electrical panels across Snohomish and King County since 1998. We bring outdated systems up to current safety standards and today’s power demands — sized to what your home actually needs, not the biggest panel we can sell you.
or Call: 360-653-5300
Is Your Panel Keeping Up With Your Home?
Your electrical panel is the heart of your home’s electrical system — every circuit, every outlet, every appliance runs through it. When it falls behind, the house tells you:
- Breakers that trip when the microwave and the space heater run at the same time
- A panel with no open slots left for the new circuit you need
- A home still running on 100-amp service (or less) while you’re planning an EV charger or a heat pump
- Fuses instead of breakers — common in older homes around the area, and a sign the whole system deserves a fresh look
- Warm panel covers, buzzing, or breakers that won’t stay reset — call us about these sooner rather than later
Some older panel brands installed throughout this region also have well-documented reliability problems, and insurance companies increasingly flag them during home sales. If an inspector or insurer has called out your panel by name, we can tell you honestly whether it needs replacing or just a professional evaluation.
What to Expect From the Upgrade
A panel replacement sounds disruptive. Done right, it isn’t. Here’s how we run the job:
- A free, no-pressure estimate. We look at your existing panel, talk through what you’re planning for the home, and give you a firm number and a real timeline before any work starts.
- We handle the paperwork. Permits are pulled by us, and the required Labor & Industries inspection is scheduled and handled as part of the job — you don’t chase anything.
- We coordinate with your utility. Whether you’re served by Snohomish County PUD or Puget Sound Energy, we schedule the disconnect and reconnect so your power is back on as quickly as possible.
- One day, most of the time. Most residential panel upgrades are completed in a single day, including the utility coordination.
- A clean handoff. Labeled circuits, a tidy work area, and a walkthrough of your new panel before we pack up. Our crews are our own licensed electricians — we don’t send subcontractors to your house.
What Usually Triggers a Panel Upgrade Around Here
In our corner of Washington, panel upgrades are usually driven by what’s being added to the home, not by outright failure. The big ones we see every week:
- EV chargers. A Level 2 charger is often the single largest load in the house, and plenty of 100-amp panels simply don’t have the headroom.
- Heat pumps. As homeowners across Snohomish and King County move away from gas furnaces, the electrical service has to grow with the heating system.
- Remodels, additions, and ADUs. New square footage means new circuits, and the panel is where that conversation starts.
- Hot tubs, shops, and detached garages. Big fun, big loads.
- Home sales and insurance. Aging or flagged panels increasingly come up in inspections, and buyers’ lenders sometimes require the fix before closing.
Whatever’s driving it, we start with a load calculation — not a sales pitch — and size the service to the home you have and the plans you’ve told us about.
Frequently Asked Questions
Are your electricians licensed and insured?
Yes. All of our electricians are licensed, bonded, and insured to Washington State standards, and the work is done under our contractor license (MAUROEI971BA).
How long does a panel upgrade take?
Most residential panel upgrades are completed in a single day, including utility coordination and the required inspection scheduling. We’ll tell you up front if your job is the exception.
Do I need a permit for a panel upgrade?
Yes — and we handle the permitting and the Labor & Industries inspection process as part of the job.
Should I upgrade to 200-amp service?
It depends on the home and your plans. If an EV charger or heat pump is in your future, 200 amps is usually the right call. We run the numbers on your actual load and tell you honestly — we don’t upsell capacity you’ll never use.
Can I get a detailed estimate before the work begins?
Always. Transparent pricing and a written estimate before any work starts, at no charge.
Do you offer same-day or next-day appointments?
We schedule same-day or next-day appointments whenever possible — call the office at 360-653-5300 and we’ll find the earliest slot.
