Updated October 16, 2026. For current planning ranges, see our panel upgrade cost guide.
Your electrical panel does far more than hold breakers — it’s the control center that distributes power safely throughout your home. As homes add EV chargers, heat pumps, modern appliances, and smart technology, older panels often struggle to keep up.
At Smiley Electric, panel upgrades and replacements are some of the most common projects we complete for homeowners in Portland, Beaverton, Lake Oswego, Hillsboro, and Tigard. Here’s how to know which type of panel work your home needs.
Planning work on your own panel? See our panel replacement and upgrade services in Portland for project options and help planning the next step.
Panel Upgrade vs. Panel Replacement vs. New Panel Installation
Panel Upgrade
A panel upgrade is usually about capacity, for example going from 100 amps to 200 amps, or from 200 amps to 400 amps for some large homes, ADUs or homes with several EVs. Those are examples, not the right size for every home. A new panel by itself does not increase the capacity of the service your utility delivers: a larger service can also require new service conductors, meter equipment and utility work. Our guide to panel upgrades versus service upgrades explains the difference.
Reasons to have your capacity assessed:
- Installing an EV charger
- Adding a heat pump or HVAC system
- Remodeling a kitchen or adding an ADU
- Frequent breaker trips
None of these automatically means an upgrade. An EV charger or heat pump may fit on your existing service, which a load calculation shows. Frequent trips can come from one overloaded circuit, a worn breaker or a faulty appliance, and those call for a circuit or appliance repair rather than a panel or service upgrade.
Panel Replacement
Panel replacement means swapping out the existing panel without increasing amperage. It comes up when the panel itself is damaged, failing or a known problem.
Common reasons for replacement:
- A Federal Pacific (FPE) or Zinsco panel, two brands with documented breaker concerns
- Rust, corrosion, or overheating
- Breakers that won’t reset or trip improperly
- Suitable repair parts are no longer available
Age or brand alone does not settle it. Other older panels, such as Pushmatic or split-bus designs, are judged on their condition, whether suitable repair parts are available, the work you have planned and any specific notice from your insurer. Insurance requirements vary by carrier. Our Federal Pacific and Zinsco guide explains those two brands in more detail.
New Panel Installation
A new panel installation is typically required when:
- Adding an ADU or detached structure
- Relocating the panel for code clearance
- Converting from fuse box to breaker panel
- Installing a subpanel or second main panel
New installations require careful planning and permits, plus coordination with the utility provider when the work requires it.
Signs You Need Panel Work
You may need an upgrade or replacement if you notice:
- Breakers tripping frequently
- Flickering or dimming lights
- Warm or buzzing panel
- Burning smells near the panel
- Limited breaker space
- Insurance or home inspection flags
A 100-amp service can still be sufficient for some homes. Whether you need more capacity depends on the existing electrical system and a load calculation that includes planned appliances and equipment. See our 100-amp versus 200-amp guide.
What a Professional Panel Installation Should Address
A written panel scope should address:
- A load calculation for current and planned needs
- Grounding and bonding
- AFCI and GFCI protection where current code requires it for the work being done
- Whether whole-home surge protection will be added
- How circuits will be identified and labeled
- The permit and inspection
What is included varies from job to job, so the written estimate should spell it out before work starts.
How Much Does a Panel Upgrade or Replacement Cost?
Cost depends on the type of panel work, the panel location, the condition of the existing service, grounding requirements and whether utility coordination is needed. For current planning ranges, see our Portland panel upgrade cost guide. A firm price comes from a written estimate for your home.
Permits, Inspections & Utility Coordination
Panel replacements and service changes typically involve:
- An electrical permit
- Inspection by the city or county
- Coordination with PGE or Pacific Power to disconnect and reconnect service, when the work requires it
When Smiley Electric does the work, we coordinate those steps, and the written estimate says what is included.
Why Panel Work Matters
Correct sizing and installation address the panel and capacity problems that were identified, such as:
- A damaged or problem panel
- Too little capacity for the loads in the load calculation
- No room for planned circuits
A new panel does not fix faulty circuits elsewhere in the house. Those still need their own diagnosis.
Panel Upgrade & Installation Experts in Portland & Beaverton
Smiley Electric specializes in:
- Electrical panel upgrades
- Unsafe panel replacement
- New panel installations
- Service upgrades and subpanels
We proudly serve Portland, Beaverton, Lake Oswego, Hillsboro, Tigard, and surrounding areas.
👉 Contact Smiley Electric today to schedule a panel inspection and get a clear, upfront estimate.