Whittier’s housing stock spans two very different eras: Craftsman and Spanish Colonial homes from the 1900s–1930s in and around Uptown, and postwar tract homes built through the 1950s and ’60s in East Whittier. Both bring their own panel problems: century-old homes that have been rewired piecemeal over decades, and postwar houses still running the 60- or 100-amp service they were built with. Whether your panel is original to a 1920s bungalow or a 1958 ranch house, this is the work we specialize in.
Licensed electricians • Same-day service available • No obligation
In Whittier, the call almost never starts as “I need a panel upgrade.” It starts as one of these.
A burning odor near the panel, or discoloration around a breaker, means heat is building up somewhere it isn't supposed to
EMERGENCY: Shut off what you safely can and call immediately because this is an active fire risk
An occasional trip is normal. A breaker that trips every time the AC and the microwave run together means the panel can't cover what you're actually asking it to do
Action Needed: Repeat trips on the same circuit point to a capacity problem, not a faulty breaker.
If your lights sag when the refrigerator compressor kicks on or a large appliance starts up, the panel is struggling to deliver stable power.
Warning Sign: This is a sign the panel can’t keep pace with your home’s demand.
A panel with no available breaker spaces can make it difficult to add new circuits for projects such as an EV charger, HVAC equipment, or other major electrical upgrades.
Safety Risk: Depending on your home’s available capacity and the planned addition, a panel upgrade or sub-panel may be an appropriate solution.
Fuse boxes and certain older panel brands, including Federal Pacific and Zinsco, may have safety concerns or create complications during insurance reviews and property transactions.
Upgrade Needed: An electrician can identify the equipment, evaluate its condition, and determine whether replacement is appropriate.
A panel that feels unusually warm can indicate a loose connection, overloaded circuit, failing component, or another electrical problem.
EMERGENCY: A warm panel can precede an electrical fire, this warrants a same-day call, not a scheduled visit.
Not every Whittier home needs the same size electrical service. The right amperage depends on your home’s square footage, the appliances you run, and any upgrades you’re planning. Here’s how the three most common options compare:
| Service size | Typical use case |
|---|---|
| 100A | Older or smaller homes with modest electrical loads may have 100-amp service, which was often adequate when homes relied on gas appliances and had fewer electrical demands. This can become limiting as homeowners add central AC, electric appliances, an EV charger, or other high-demand equipment. Some of Whittier’s older homes may still have 100-amp service that has never been upgraded. |
| 200A | A 200-amp service is common for modern single-family homes and provides substantially more capacity for today’s electrical demands. It can support central AC, electric appliances, and many EV charging setups, along with other typical household loads. It is also a common choice for remodeled homes where electrical demand has increased significantly. |
| 400A | 400-amp service is for larger homes, an ADU on a shared service, more than one EV charger, or a home going all-electric with a heat pump, induction range and electric water heater. Most homes do not need it, and a load calculation will tell you if yours does. |
Take note: Choosing the right panel size isn’t a matter of “bigger is better.” The appropriate size is determined by a load calculation that accounts for your home’s actual and anticipated electrical demand. An oversized panel adds unnecessary cost; an undersized one leaves you back where you started.
Federal Pacific Stab-Lok panels are associated with breakers that may fail to trip as intended during certain overload or short-circuit conditions. When a breaker does not interrupt the circuit properly, current can continue flowing and increase the risk of overheating and fire. FPE panels may also create complications during home inspections, insurance reviews, and property transactions, particularly in older Whittier homes.
Zinsco panels, along with similar Sylvania/GTE-Sylvania equipment, have known breaker and design issues that can affect how the panel responds to an overload. In some cases, breakers fuse to the bus bar, making them difficult to remove and potentially preventing a circuit from disconnecting as intended.
Certain Challenger panels and breakers have raised performance and compatibility concerns, especially in older installations. Some Challenger equipment has also been subject to safety concerns or replacement recommendations. An electrician can identify your specific equipment and determine whether replacement is warranted.
A panel upgrade is a coordinated project, not just a swap of one box for another. Here’s what the process typically includes:
Before any work begins, we calculate your home’s electrical demand by reviewing existing appliances, HVAC equipment, and planned additions. This helps determine the appropriate service size and ensures the upgrade is matched to your home’s actual and anticipated electrical needs.
Depending on the age and condition of your home’s existing service mast and meter socket, these may need to be replaced or upgraded as part of the project to safely support the new panel.
Because the meter and service connection are involved, panel upgrades require coordination with Southern California Edison (SCE) to safely disconnect and reconnect utility power. Proper scheduling helps keep the project moving and minimizes unnecessary downtime.
Panel upgrades need an electrical permit from the City of Whittier, and the work has to pass the City’s inspection before the panel is signed off. We pull the permit and meet the inspector.
All work is done to the current California Electrical Code as adopted by the City of Whittier, so the panel doesn’t cause problems at your next sale or insurance renewal.
Understanding when and why to upgrade protects your family and can save you money before a small issue becomes an expensive one.
Whittier’s electrical needs can vary depending on the age and history of the home. In Uptown Whittier and the older neighborhoods around it, many homes date to the early 1900s through the 1930s. Craftsman bungalows and Spanish Colonial Revival homes may have been rewired or modified over the years (see whole-home rewiring), sometimes leaving a mix of older and newer electrical work connected to a panel that was never designed for today’s demand.
In East Whittier and other postwar neighborhoods, homes built in the 1950s and 1960s may have originally been equipped with 60- or 100-amp service. That capacity may be limiting today as homeowners add central air conditioning, EV chargers, electric appliances, and other higher-demand equipment.
In either case, a panel that was adequate when it was installed may no longer provide enough capacity for how the home is used today.
Some panels aren’t just old. Certain older designs have documented safety concerns. Federal Pacific (FPE) and Zinsco panels are found in some older Whittier homes, and their breakers have been associated with failures to trip properly under certain overload conditions. When a breaker does not interrupt a fault as intended, the risk of overheating and fire can increase.
Insurance requirements can make these panels an even more immediate concern. Some carriers may decline to write or renew coverage when certain older panels are present, while others may require replacement as a condition of coverage. If your insurer has identified your panel as a concern, replacing it may be necessary before you can move forward with a new policy or renewal.
Other panels may also warrant prompt attention if they show signs of overheating, corrosion, physical damage, or other deterioration. A licensed electrician can inspect the equipment and determine whether repair, replacement, or a larger service upgrade is appropriate.
A panel upgrade does more than address recurring breaker trips. It can improve your home’s electrical capacity, support new appliances and upgrades, and provide equipment that better meets current electrical requirements.
Modern panels pair with AFCI breakers, which detect the kind of arcing that can start a fire inside a wall, and GFCI protection, which cuts power when current leaks to ground in a kitchen or bathroom. Many of the 60- and 100-amp panels in older Whittier homes have neither. A new panel installed to current code is one of the more effective ways to lower that risk.
AFCI breakers detect dangerous arcing and shut the circuit off, lowering the risk of an electrical fire
A modern panel also matters when you insure or sell the house. Some insurers ask about the panel at renewal, and buyers’ home inspectors flag older brands like Federal Pacific and Zinsco. Replacing it before either comes up keeps the panel from holding up a policy or a sale.
Fewer insurance and home-sale complications, and fewer emergency repairs
Upgrading the electrical panel in Whittier, CA does more than improve safety. It gives your home the capacity to handle today’s electrical demands, from HVAC systems and modern appliances to EV chargers and future upgrades. With the right panel, you can add new electrical loads with greater confidence while reducing the limitations of an outdated system.
Run multiple appliances without tripping breakers or dimming lights
Support electric vehicle charging without expensive upgrades later
Ready for smart home technology and automated systems
Add new circuits and outlets without panel limitations
Many Whittier homeowners wait until their electrical panel starts tripping, overheating, or failing before replacing it. That can leave you dealing with unexpected power interruptions and a more urgent repair. Planning the upgrade ahead of time gives you more control over the timing and scope of the work.
If your panel is aging, showing warning signs, or you’re planning major electrical additions such as an EV charger, central AC, or electric appliances, it may be time to have your system evaluated. Addressing capacity issues before they become an emergency can make the upgrade easier to plan and avoid unnecessary disruption.
From full panel upgrades to emergency repairs, our licensed electricians handle Whittier’s electrical panel work with the same standard whether it’s a century-old Craftsman or a postwar ranch. For a panel emergency, see our emergency electrician in Whittier page. We also do panel upgrades in Norwalk and across Los Angeles, plus commercial panel upgrades.
Moving a home from 60- or 100-amp service up to 200 amps or higher where the load genuinely calls for it.
For the panel problems that can’t wait for a scheduled visit like sparking, burning smells, or a total loss of power.
For new construction, additions, or a full electrical system replacement rather than a like-for-like swap.
Targeted replacement for the specific panel brands most likely to show up in Norwalk’s postwar homes and the ones insurers watch most closely.
A full assessment for homeowners who aren’t sure yet whether they need a repair, an upgrade, or nothing at all.
For when the fix is at the breaker level, not the whole panel.
Comprehensive electrical panel inspections to identify safety issues and recommend necessary upgrades or repairs.
“I started Saiyan Electric because I believe every family deserves safe, reliable electrical service. We don’t just replace panels – we take the time to understand your home’s needs and provide honest recommendations. Our Christian values guide everything we do, from treating your home with respect to standing behind our work with integrity.”
– Owner, Saiyan Electric
⭐⭐⭐⭐⭐
– Aimee., Downey
⭐⭐⭐⭐⭐
“Michael and his crew really came through. These men have done a few different jobs for me over the past two years and I’ll certainly be calling them again if the need ever arises. If you are looking to get some electrical work done by licensed bonded and clean cut professionals that do a great job, give Saiyan Electric the opportunity to serve you, I think you’ll be happy you did. Cheers.”
– Donald., Cerritos
Get answers to the most common questions about electrical panel replacement, upgrades, and repairs in Whittier, CA.
If your home regularly trips breakers, has limited space for new circuits, or you’re adding high-demand equipment, your existing service may not have enough capacity. A load calculation can determine whether an upgrade is actually necessary.
We evaluate your existing electrical system, calculate the required service capacity, coordinate utility disconnection when needed, replace the panel and associated service equipment, and complete the required inspections. The exact scope depends on the condition and configuration of your existing system.
Yes, the home’s power will need to be disconnected while the panel and service equipment are being worked on. The outage is typically limited to the work period, but utility coordination can affect the overall schedule.
It can be, but the panel size alone does not determine whether an EV charger can be added. Your electrician should evaluate the home’s total electrical demand and available capacity before determining whether the existing service can support the charger. More on 200-amp panel upgrades.
In some situations, yes. A sub-panel can provide additional breaker spaces and help distribute circuits, but it does not automatically increase the home’s overall electrical service capacity. An electrician can determine whether a sub-panel or main panel upgrade makes more sense for your needs. See sub-panel installation.
The panel should be professionally evaluated rather than assumed to be safe based on age alone. These older brands have documented safety concerns, and replacement may be recommended depending on the equipment’s condition and your electrical needs. Insurance requirements can also make replacement a consideration.
A panel upgrade can provide additional capacity when the home’s service is also appropriately upgraded. The available capacity depends on the complete electrical service, not simply the number of breaker spaces in the panel.
The cost depends on factors such as the required service size, existing equipment, utility requirements, accessibility, permitting, and whether additional service equipment or repairs are needed. An evaluation is the best way to determine the scope and provide an accurate project price.
Ready to upgrade your electrical panel? Schedule your free assessment and get an honest evaluation of your electrical system’s safety and capacity.
Our licensed electricians will assess your current panel, explain your options, and provide upfront pricing for any recommended work. No obligation, just honest advice.
(310) 780-0191
info@saiyanelectric.com
Whittier, Downey, Cerritos & surrounding areas
Available for urgent panel issues
Need an electrician today?
Same-day service across Downey, LA County and North Orange County.
At Saiyan Electric, we are committed to seeking first the Kingdom of God and His righteousness in all that we do. We strive to provide exceptional electrical services with integrity, professionalism, and a heart of service.
Contact
Hours
© 2026 Saiyan Electric. All rights reserved.
Website & SEO by ProofPilot