Arlington, WA Electrical Panel & Service Upgrades — 100A to 200A

Estimated Read Time: 14 minutes

If your lights dim when the dryer kicks on or you are adding an EV charger, a 100 amp to 200 amp service upgrade is often the safest and smartest move. This guide explains when you need the upgrade, how the process works in the Seattle area, typical costs, timelines, and the smart-panel options that future‑proof your home. We also share real pricing ranges and what to expect on permitting and inspections. Ready to plan confidently? Let’s get started.

Do You Really Need a 200 Amp Service?

Most older Seattle‑area homes were built with 60–100 amp service. Today’s loads are higher: heat pumps, induction ranges, hot tubs, EV chargers, and home offices. A 200 amp service gives the headroom to run these without nuisance trips or unsafe workarounds.

Signs you may need to upgrade:

1. Frequent breaker trips or lights dim when large appliances start.
2. Warm or buzzing panel, corrosion on the service mast, or a scorch smell.
3. Planned additions such as an EV charger, hot tub, or heat pump.
4. Panel is full with tandem breakers or has obsolete equipment.

Local insight: Homes in the Puget Sound marine climate often show rust at the service mast and meter base. That corrosion can increase resistance and heat. A service upgrade addresses capacity and safety together.

“They upgraded my electrical panel and the wires from the meter to the panel… I felt Eco Electric had my best interest in mind.”

What’s Included in a 100 Amp to 200 Amp Service Upgrade

A true service upgrade is more than swapping a breaker box. You are increasing the service capacity and modernizing critical components.

What a comprehensive upgrade typically includes:

• New 200A main service panel with proper labeling and spare spaces for future circuits.
• Service entrance conductors sized for 200A and new meter base, often with a service mast upgrade.
• New grounding electrode system and bonding per today’s code (water pipe, ground rods, bonding jumpers).
• Utility coordination for the new service drop or lateral and meter set.
• Permit and electrical inspection with your Authority Having Jurisdiction (AHJ).
• Optional surge protection and arc‑fault/ground‑fault upgrades where required.

This is a coordinated job between your electrician, the city or county, and Seattle City Light or your local utility. The goal is a safe, code‑compliant, future‑ready system that passes inspection on the first try.

“Crew was punctual, professional, and pleasant. They cleaned up after themselves and finished in a reasonable time.”

Code and Safety Essentials Homeowners Should Know

Electrical work must meet current code, not the code from when the home was built. Two facts every homeowner should know:

1. Since the 2020 National Electrical Code, dwelling units require a surge protective device on service equipment (NEC 230.67). A whole‑home surge protector is now a code item, not a luxury add‑on.
2. Arc‑fault protection is required on most dwelling unit branch circuits (NEC 210.12). If you add new circuits during the upgrade, plan on AFCI or dual‑function AFCI/GFCI breakers where applicable.

In our region, you also need a permit and final inspection by the local AHJ before the utility will energize the new service. Your contractor should manage the paperwork, load calculations, and utility scheduling.

“Edwin proposed a comprehensive solution and expanded on my original needs to include additional surge protection and a panel with space for the future.”

How Much Does a 200 Amp Service Upgrade Cost?

Every home is different, but transparent ranges help you budget. Based on recent Seattle‑area projects:

• Electrical Panel Upgrade (100A to 200A): $3,500 to $5,500
• Breaker Panel Replacement: $3,000 to $6,500
• Panel Upgrade with Service Mast & Meter: $9,500 to $15,000
• Panel Upgrade with Electrical Rewiring: $8,000 to $17,000

Add‑ons that influence price:

• Whole‑home surge protection
• Dedicated circuits for EV chargers or heat pumps
• Service relocation or meter base changes required by the utility
• Correcting existing code issues or aluminum wiring terminations

Why the range? Homes vary by access, mast height, grounding, utility requirements, and whether drywall repairs are needed. A free on‑site estimate will confirm scope and firm up the price before work starts.

“They were responsive and honest about what I needed… Highly recommend.”

Timeline: From Estimate to Final Inspection

Upgrading to 200A is usually a 1‑ to 2‑day on‑site project, with lead time for permits and utility coordination.

Typical flow:

1. Assessment and load calculation: 30–60 minutes on site.
2. Written estimate with options the same day in most cases.
3. Permit application: 1–5 business days, depending on jurisdiction.
4. Installation day: Power is off 4–8 hours while we change the service equipment.
5. Inspection and utility reconnect: Often same day or the next business day.

We schedule installation and inspection together to minimize your downtime. Temporary power for critical needs can be discussed during planning.

Smart Option: SPAN Panel for Real‑Time Control and Solar Readiness

If you are moving to 200A, consider a smart panel while you are there. SPAN is a modern load center that gives you app‑based control, real‑time energy monitoring, and seamless integration with solar and battery systems.

What homeowners like about SPAN:

• Prioritize or shed loads from your phone during outages or peak times.
• See what appliances draw the most power and reduce waste.
• Future‑proof for solar, batteries, and EV charging without guesswork.

Typical SPAN pricing:

• SPAN Smart Electrical Panel Installation: $9,500 to $15,500
• SPAN Panel Integration and Setup: $500 to $1,500

For homes adding batteries or planning solar in the next few years, SPAN makes the transition smoother and gives you control from day one.

“Great experience overall… proposed additional surge protection and a panel with additional space for the future.”

EV Chargers, Heat Pumps, and Other Load Additions

Many upgrades are driven by one of these projects:

• Level 2 EV charger: Often needs a 40–60A dedicated circuit.
• Heat pump or heat pump water heater: Adds significant load but lowers monthly bills.
• Induction range or hot tub: Both can consume large amperage.

During your estimate, we confirm present loads and your 3‑ to 5‑year plan. We design for today and leave breaker spaces for tomorrow, so you do not pay for another panel change later.

Permits, Utility Rules, and Seattle‑Area Nuances

Local detail matters. Seattle City Light and nearby utilities have clear rules on meter bases, working clearances, and mast heights. Expect:

• Permit through your local AHJ and utility scheduling for meter pulls and reconnects.
• Exterior work height and weatherhead clearances that must be met.
• Grounding and bonding upgrades on older homes that used pre‑modern methods.

Our team coordinates directly with the utility so you do not have to. We plan install days around weather to protect your home’s exterior and maintain safety in our rainy climate.

What to Ask Before You Hire an Electrician

A quality panel or service upgrade protects your whole home. Ask these questions:

1. Are you licensed, insured, and trained on the current code cycle?
2. Will you handle permits, inspection, and utility coordination?
3. Is whole‑home surge protection included per code?
4. Do you perform a load calculation and provide labeled directories?
5. What is the workmanship warranty and cleanup process?

Why Eco Electric, Plumbing, Heating and Air:

• Certified electricians with ongoing training in the latest standards.
• Safety‑first work that meets local and national codes with transparent pricing.
• Thousands of successful upgrades and responsive communication from start to finish.

“Communication was top notch… Entire crew was professional, courteous, and very clean.”

Sample Scopes and Bundles We Commonly Complete

If you want a sense of how projects are packaged, here are examples we build often:

• Standard 200A Service Upgrade
  • New 200A panel, new meter base, grounding and bonding upgrade, whole‑home surge protector, labeling, permit, and inspection.
• EV‑Ready Upgrade
  • 200A panel, dedicated EV circuit and receptacle or hardwire, surge protection, spare spaces for future loads.
• SPAN Smart Panel with Future Solar
  • SPAN load center, 200A service, app setup, prioritized circuits, pre‑wire or provisions for PV and battery.

Each package is customized after we inspect your current gear, mast condition, and future plans.

Maintenance After Your Upgrade

Your new service is a long‑term asset. We recommend:

• Annual visual check of the exterior mast and meter enclosure for rust or damage.
• Panel cover removal every 2–3 years by a licensed electrician to check torque and heat discoloration.
• Surge protector status check and replacement per manufacturer guidance if it ever indicates a fault.

Many homeowners join our ECO CARE Membership for seasonal tune‑ups and priority service. Routine maintenance helps catch minor issues before they become outages.

Special Offer: Save on Your Panel Upgrade

Save $100 on panel installation when you schedule your 100 amp to 200 amp service upgrade with Eco Electric, Plumbing, Heating and Air. Offer valid through April 30, 2026. Free estimates available. Call (425) 286-8448 or visit https://www.ecoserviceswa.com/ to redeem.

What Homeowners Are Saying

"They upgraded my electrical panel and the wires from the meter to the panel… During this time I felt Eco Electric looked out for me and had my best interest in mind. I highly recommend." –Seattle Panel Upgrade Customer

"Edwin came out to help me understand what a full replacement upgrade to my electrical panel would require… proposed additional surge protection and a panel with additional space for the future. Great experience overall." –Bellevue Homeowner

"We used Eco Services for a panel replacement… Communication was top notch… Entire crew were honest, professional, courteous and very clean. We'd definitely hire this crew again." –Tacoma Homeowner

"Got my electric upgrade done by Eco Electric. They were diligent in following up with any issues… I would consider them for future works." –Everett Homeowner

Frequently Asked Questions

How do I know if 200 amps is enough for my home?

Most homes with modern appliances, a heat pump, and one EV are well served by 200A. We confirm with a load calculation and plan for future circuits.

Do I need a permit for a 100 to 200 amp upgrade?

Yes. Your local authority and the utility require a permit, inspection, and coordinated meter work. We handle all paperwork and scheduling.

How long will my power be off during the upgrade?

Expect 4–8 hours of downtime on install day. We plan the schedule to minimize disruptions and coordinate inspection and utility reconnect.

Is a whole‑home surge protector required now?

Yes. Since the 2020 NEC, service equipment for dwellings must include a surge protective device. We include this in compliant upgrades.

Will a SPAN smart panel work without solar or batteries?

Absolutely. SPAN works as your main panel today. If you add solar or storage later, the integration is already in place.

Conclusion

Upgrading from 100 amp to 200 amp service improves safety, reliability, and capacity for EVs, heat pumps, and future projects. In the Seattle area, we handle permits, utility coordination, and code compliance, including whole‑home surge protection. Get transparent pricing, clean craftsmanship, and options like SPAN to future‑proof your home.

Call to Action

Ready for your 100 amp to 200 amp service upgrade in Seattle, Tacoma, Bellevue, or nearby? Call (425) 286-8448 or schedule at https://www.ecoserviceswa.com/. Mention our $100 Off Panel Installation offer through April 30, 2026, and ask for your free estimate today.

Call now: (425) 286-8448 • Online: https://www.ecoserviceswa.com/ • Limited‑time offer: $100 Off Panel Installation through 04/30/2026

Eco Electric, Plumbing, Heating and Air is Seattle’s top-rated, full-service team for electrical, plumbing, and HVAC. Our licensed, insured electricians deliver code‑compliant panel upgrades, SPAN smart panels, and clean, on-time work. We provide transparent pricing, written guarantees, and options tailored to your home’s future needs. Thousands of successful upgrades across Seattle, Bellevue, Tacoma, and surrounding cities. Call for fast scheduling and a free estimate.