Electrical Panel Upgrades
Electrical Panel Services in Marin, Sonoma & Napa County
Need electrical panel upgrades? Ongaro & Sons is here for you!
Our licensed electricians can assist with any of your electrical needs for your home. Our team of certified experts cuts no corners, we offer top-quality services and products that are safe, efficient, effective, and fully compliant with the National Electrical Code (NEC).
Upgrade Electrical Panels and Increase Energy Efficiency
The average California household spent about $242 a month on electricity in 2024, far above the national average. Let's find ways to reduce that cost. If you have an outdated panel, upgrading can help you save money on your monthly electric bill.
How Long Do Electrical Panels Last?
The average lifespan for an electrical panel is anywhere from 25 to 40 years, sometimes longer. Much of the lifespan depends on the type of electrical panel, how well it was installed, its usage, and whether it was built for today’s energy requirements.
If you are moving to a new home or renovating your current home, you should schedule an electrical inspection to determine the safety and efficiency of your electrical equipment.
Are Fuse Boxes Safe or Should I Upgrade to a Modern Panel?
In the 1960s, builders stopped installing fuse boxes in homes. You should upgrade to a circuit breaker if your residence still has one. Fuse boxes aren’t designed to handle modern energy requirements.
Circuit breakers are much safer, whenever there’s an overcurrent or short, they automatically cut off the current. This protects you from electric shock, your equipment from getting damaged, and your home from the risk of an electrical fire.
Electrical Panel Safety Tips
Your electrical panel is the command center of your home’s electrical system. Knowing how to safely interact with it, and when to call a professional, can help prevent hazards, avoid costly damage, and keep your home running smoothly. Here are a few essential electrical panel safety tips every homeowner should follow:
- Familiarize yourself with the main breaker, individual circuit breakers, and the labeling of each circuit. Knowing what each breaker controls will be invaluable during troubleshooting and maintenance.
- Don't overload circuits. Be mindful of how many high-power devices you have plugged into a single circuit. Overloading can cause breakers to trip frequently, indicating a potential issue or the need for additional circuits.
- Ensure the area around your electrical panel is always clear of obstructions. Avoid storing anything in front of it that would prevent quick access in an emergency or during maintenance. Maintain at least a 3-foot clear space in front of the panel.
- Label circuits clearly and accurately. Over time, circuit labels can become faded, incorrect, or missing. Take the time to accurately label each breaker, indicating what outlets, lights, or appliances it controls. This makes troubleshooting much easier and safer.
- Never attempt to repair or modify your electrical panel yourself unless you are a licensed and experienced electrician. If you notice persistent issues like frequently tripping breakers, flickering lights, burning smells, or strange noises, call Ongaro & Sons. We promise to find a safe solution that fits your budget and protects your loved ones.
What Are the Signs I Need a New Electrical Panel?
There are many telltale signs that you need a new electrical panel. Remember, a defective panel is a fire hazard. Call our Ongaro & Sons professionals right away if you suspect a problem. Here are some common symptoms:
Overheating or Scorching
Is there a burning smell coming from your panel or outlets? Notice any signs of scorching? Your electrical system may be overheating, or the wires may be melting. A burning smell could indicate a serious problem. Contact our electricians right away.
Rusty Panel
Water and electricity don’t mix well. If there’s rust, water could be leaking onto your panel. When water gets inside your panel box, it can cause issues with the circuit breakers and pose a safety hazard. Be sure to call our licensed professionals to replace the panel.
Breakers Keep Tripping
Do your breakers trip often, particularly when you run appliances requiring more electricity, such as your air conditioner, heat pump, washing machine, or dryer? This could indicate you have an outdated panel that can’t keep up with your electrical needs. Alternatively, it may be undersized. The standard panel size for most modern homes is 200 amps. Larger homes may require a 400-amp panel.
Flickering Lights
Lights that flicker constantly can be a sign of an electrical panel problem. If the issue is house-wide and occurs rain or shine, have our Ongaro & Sons electricians check it out immediately.
Irregular Noises
Some noise is to be expected, a steady "hum" indicates a healthy breaker box. However, any crackling, hisses, or pops are a cause for concern. It means electricity is making contact with something that it's not supposed to and causing damage. This could also indicate loose or frayed wiring.
You Have a Zinsco Electrical Panel
If your home has a Zinsco electrical panel, it is time to upgrade. These outdated panels are known to overheat, fail to trip properly, and pose serious fire risks. Modern electrical demands often exceed their capacity, upgrading ensures better safety, reliability, and compliance with current electrical codes.
Zinsco Electrical Panels
Zinsco electrical panels were commonly installed in homes from the 1950s to the 1970s but are now considered obsolete and potentially dangerous.
Zinsco electrical panels have a known history of design flaws, including breakers that can fail to trip during overloads or short circuits, increasing the risk of electrical fires.
Also, the aluminum components inside Zinsco panels can corrode over time or have been discovered to melt, leading to overheating and unreliable power distribution.
Many electricians and safety inspectors recommend replacing Zinsco panels due to these hazards. If your home still uses one, it’s essential to consider an upgrade to a modern electrical panel that meets current safety standards. An updated panel not only protects your home and family but also ensures your electrical system can safely handle today’s power demands from appliances, devices, and home upgrades.

Panel Upgrade Benefits
Ongaro & Sons can determine if a partial or complete upgrade is warranted. Typically, it's most cost-effective to replace just the panel. However, depending on your situation, you may need rewiring, a new breaker switch, or an entirely new main breaker. Schedule an in-home consultation with your electrician today, our licensed electricians can help you find the best path forward.
Upgrading is a major undertaking, which may be why many homeowners are known for putting it off. However, it’s an important investment that will pay off in the long run. Upgrading your panel offers the following benefits:
- Greatly reduced risk of electrical fires
- Increased home value
- Higher efficiency and electrical output
Ask about our financing options for qualified borrowers to help you make this a more affordable home project.

Schedule Your Electrical Panel Upgrade Service
We proudly serve Sonoma, Marin, and Napa counties, including Santa Rosa, Bodega Bay, San Rafael, Novato, Glen Ellen, and surrounding cities. Call us now at 415-741-2820 or book your appointment online.
Your Comfort, Our Priority
Ongaro & Sons is your trusted heating, cooling, plumbing, electrical, and solar expert, specializing in reliable maintenance and repair services that keep your home running efficiently year-round.
Our certified technicians deliver unmatched expertise with fast, friendly service across Marin, Sonoma and Napa County. From HVAC tune-ups to plumbing repairs and electrical upgrades or solar solutions, we focus on energy-efficient performance and long-term comfort. Count on us to maintain the systems that power your home and keep your environment just the way you like it.
Licensed, Insured, Background-Checked
Our technicians are licensed, experienced, and trained to service all makes and models.
Locally Owned and Operated
Serving the Napa, Marin, and Sonoma communities with personalized, hometown service.
Reliable Repairs
We respond quickly and get the job done right the first time, with no surprises.
Since 1932
Why Ongaro & Sons for Electrical Panel Upgrades
The panel decides what else the house can do, so the calculation matters more than the brochure.
Schedule Service →A load calculation, not a guess at breaker spaces
Whether you need 200 amps depends on the actual connected load and what you plan to add. We calculate it, because the answer changes what the upgrade costs and sometimes shows you do not need one.
SPAN Certified Installer for SPAN smart panels
Where a SPAN panel is the specified product, Ongaro & Sons is a certified installer. On conventional panels we fit conventional equipment and say so.
Utility coordination handled
A service upgrade means scheduling with PG&E as well as the county. Sequencing that badly is what turns a one-day job into three weeks.
The reason for the upgrade gets named
Panels get replaced for real reasons: a failed bus, a recalled brand, insufficient capacity for a heat pump or a charger. If your panel is fine, we will tell you that.
Permitted and inspected
Panel replacement is permitted work in all three counties. Ongaro & Sons holds C-10 and has worked in the North Bay since 1932.

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Ongaro Maintenance Plans
Annual maintenance on your home systems provides safeguards and comfort to you and your family. Members get priority scheduling, discounts, and proactive checkups that catch problems early.
Member Discounts
5% off every repair and replacement, all year long.
Peace of Mind
Proactive checkups catch issues before they become big problems.
Courtesy Reminders
We call you to schedule: never miss a seasonal service.
Special Offers
Enjoy our seasonal promotions and save on your next service. Limited-time offers, don’t miss out!
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Read MoreFrequently Asked Questions
Can I add new circuits without upgrading the panel?
Possibly, but if your current panel is full or outdated, adding circuits may overload it. An inspection will determine if an upgrade is needed.
Can you install new circuits or upgrade panels for growing businesses?
Yes. We assess your current electrical capacity and design upgrades that safely support new equipment, lighting, or workspace expansions.
How long does it take to upgrade a panel?
Most residential upgrades take 1–2 days, including permit coordination, utility shutoff, and system testing.
Is an electrical panel upgrade required when adding solar or an EV charger?
Often, yes, adding high-demand systems may require a larger panel to support the additional load safely and meet code requirements.
Why would I need to upgrade my electrical panel?
If your panel is outdated, overloaded, or can’t support modern appliances, an upgrade improves safety and provides the capacity for today’s energy demands.