At Saiyan Electric, we specialize in commercial electrical panel upgrades for businesses throughout Downey, CA and surrounding areas. Our licensed electricians handle everything from three-phase panel installations and sub-panel additions to full service capacity increases, giving your business the electrical infrastructure it needs to operate reliably today and scale without limitations tomorrow.
Licensed electricians • Same-day service available • No obligation
Every piece of equipment in your building, every machine on your production floor, every refrigeration unit in your kitchen, every workstation in your office, every light fixture above your sales floor, draws its power from your electrical panel. When that panel is undersized, outdated, or improperly configured for your actual load, the effects ripple through your entire operation. Breakers trip under normal use. Equipment underperforms. Expansion becomes impossible without a major electrical intervention. And in the worst cases, an overloaded or deteriorating panel becomes a genuine fire and safety hazard.
Commercial panel upgrades are not a simple swap. A properly engineered commercial panel installation requires accurate load calculations, correct breaker sizing and coordination, proper conductor sizing for feeders and branch circuits, compliance with NEC commercial standards and local utility requirements, and careful coordination with Southern California Edison for service upgrades. Done right, a commercial panel upgrade solves your current problems and gives your business room to grow. Done wrong, it creates new ones.
Saiyan Electric performs commercial panel upgrades the right way, with proper engineering, full permitting, utility coordination, and workmanship that passes inspection the first time.
Electrical panels don’t fail all at once. They give warning signs and ignoring those signs long enough eventually forces a decision under the worst possible circumstances. Here’s what to watch for.
If your breakers trip during normal business operations, not because of a genuine fault, but simply because the load is too high, your panel doesn't have the capacity your business actually needs. Tripping breakers aren't a nuisance to manage around. They're a sign your electrical infrastructure is undersized.
When every new piece of equipment requires a conversation about what else needs to be turned off to accommodate it, your panel has reached its limit. Business growth shouldn't be constrained by a panel that was sized for a previous tenant or a lighter operational load.
Many commercial processes heavy manufacturing equipment, large HVAC systems, commercial elevators, industrial compressors require three-phase power to operate efficiently. If your building is currently fed with single-phase service, a three-phase upgrade opens up a completely different range of equipment and operational capability.
When a single main panel is asked to serve widely distributed loads across a large building or multiple floors, voltage drop and circuit length become problems. Sub-panels bring power closer to the load, improve system performance, and simplify circuit management in large commercial spaces.
Older commercial panels particularly those using obsolete breaker technology or components from manufacturers with known reliability issues should be evaluated and often replaced regardless of whether they're currently causing visible problems. Age and obsolescence are risks in themselves.
Panel-related violations from city inspectors, fire marshals, or insurance carriers need to be addressed with properly permitted, code-compliant work not patched around. We resolve violations correctly the first time so they don't come back.
Saiyan Electric provides a complete range of commercial panel and service upgrade solutions tailored to the size, load requirements, and operational profile of your business.
We install and upgrade three-phase electrical service for commercial and industrial facilities that require the power capacity and efficiency of three-phase distribution. This includes coordination with Southern California Edison for service upgrades and all required permitting and inspection.
We replace outdated or undersized main distribution panels with properly sized, code-compliant equipment rated for your actual and projected load. We handle full service entrance upgrades when additional amperage is required from the utility.
We properly label every breaker in your panel, document the circuit layout, and organize wiring within the enclosure giving you and any future electrician a clear, accurate picture of your electrical system.
We design and install sub-panels to distribute power efficiently to specific areas of your building, tenant suites, production floors, server rooms, outdoor structures, or any zone that benefits from local panel access. Sub-panels reduce voltage drop, simplify circuit management, and make future electrical work more straightforward.
Before any panel upgrade, we perform a detailed load analysis of your current electrical consumption and projected future needs. This ensures the panel we install is correctly sized not just for today, but for where your business is going.
When a full panel replacement isn't warranted but individual breakers are failing, outdated, or improperly sized, we perform targeted breaker replacement and panel rehabilitation work to restore reliable performance.
When a panel failure disrupts your business operations, we respond quickly to diagnose the problem and restore power safely. Emergency panel work is available throughout Downey and surrounding areas.
When utility service needs to be increased, we handle meter base replacement and service entrance upgrades in coordination with Southern California Edison managing the utility application process, scheduling the utility disconnect, and completing all work to utility and code specifications.
Here’s how we approach every panel upgrade from the initial load assessment to final testing, ensuring your electrical system is safe, properly sized, and capable of handling your building’s demand.
We start every commercial panel project with a thorough assessment of your existing electrical system and a detailed load calculation based on your current equipment, occupancy, and operational profile. We account for future growth so the panel we install serves your business for years to come.
We develop the panel design, submit all required permit applications to the City of Downey or relevant jurisdiction, and coordinate with Southern California Edison for any service upgrades requiring utility involvement. We manage this process completely so you don't have to.
Panel replacement and service upgrades require a planned power outage for the affected circuits or building areas. We schedule this work carefully, often overnight or on weekends, to minimize the impact on your business operations.
Our licensed electricians complete all panel work to NEC commercial standards: proper conductor sizing, correct breaker coordination, weatherproof enclosures where required, and clean, organized wiring throughout. Every component installed is commercial-grade and rated for the application.
We arrange and pass all required city inspections, test every circuit under load, verify proper breaker operation, label the panel completely, and provide you with full documentation of the completed work including permit records and circuit schedules.
Panel upgrade costs vary based on service size, panel configuration, building conditions, utility coordination requirements, and permit scope. Here are typical ranges to help you plan:
Service | Typical Range |
Main Panel Replacement (Same Size) | $2,000 – $4,500 |
Panel Capacity Increase (200A–400A) | $3,500 – $7,000 |
Panel Capacity Increase (400A–800A+) | $6,000 – $15,000+ |
Three-Phase Service Upgrade | $5,000 – $20,000+ |
Sub-Panel Installation | $1,200 – $4,000 |
Meter Base & Service Entrance Upgrade | $2,000 – $6,000 |
Load Analysis & Capacity Planning | $300 – $800 |
Emergency Panel Repair | $400 – $2,000 |
Note: These ranges are provided for budgeting purposes. Final costs depend on your building’s existing infrastructure, service size, utility requirements, and permit scope. Contact Saiyan Electric for a free, no-obligation assessment and quote.
“A commercial panel upgrade isn’t something to shop on price alone. The load calculations have to be right. The permit has to be pulled. The utility coordination has to be handled correctly. And the installation has to pass inspection, because a panel that doesn’t pass inspection isn’t a finished job. It’s a problem waiting to get worse. We do this work the right way, every time, because our clients’ businesses depend on it.” — Owner, Saiyan Electric
Saiyan Electric provides commercial panel upgrades designed to meet the growing power demands of modern businesses in Downey. We replace outdated or overloaded panels with properly engineered systems that improve electrical capacity, enhance safety, and ensure full compliance with current codes and inspection standards.
Our approach prioritizes operational continuity, careful load planning, and scalable electrical infrastructure that supports future expansion. From small offices to larger commercial facilities, we deliver panel upgrades that reduce risk, prevent downtime, and keep your electrical system performing reliably under real-world business conditions.
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“We are pleased with the electrical work performed by Saiyan Electric. Michael, Francisco and his team were professional, efficient, and courteous. They arrived on time and explained the work thoroughly to our satisfaction. The price was reasonable, and the work was done promptly. We would recommend them for any electrical needs.”
– Aimee., Downey
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“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
Most commercial panel replacements and upgrades are completed in one to two days once permits are approved. Larger service upgrades involving utility coordination may take longer due to SCE scheduling. We give you a realistic timeline before any work begins so you can plan accordingly.
The circuits being upgraded will need to be de-energized during installation. For most businesses, we schedule this planned outage during off-hours such as overnight or on weekends to avoid disrupting normal operations. We discuss this in detail during the planning phase so there are no surprises.
Panel sizing is determined by a load calculation that accounts for all connected equipment, lighting, HVAC, and anticipated future loads. This isn’t a rough estimate, it’s an engineering calculation. We perform a full load analysis on every commercial panel project before specifying equipment.
A three-phase service upgrade requires coordination with Southern California Edison to bring three-phase power to your meter, a new three-phase meter base and service entrance, a new three-phase main distribution panel, and updated wiring for any equipment being converted to three-phase operation. We manage the entire process from utility application through final inspection.
Yes, provided your main panel has sufficient available capacity to support the additional load the sub-panel will serve. We assess the main panel first to confirm this before recommending a sub-panel installation. If the main panel is already at or near capacity, we’ll discuss upgrading both together.
Yes. All permitted commercial panel work requires a city inspection and sign-off before the job is considered complete. We coordinate the inspection, are present when the inspector arrives, and address any corrections immediately. Our goal is to pass inspection the first time on every project.
When a service upgrade requires Southern California Edison to upgrade the utility service to your meter, we submit the required application to SCE, coordinate the scheduling of their work alongside ours, and ensure all customer-side work is complete and inspection-ready before their crew arrives. This process adds time to the overall project schedule, but we manage it so you don’t have to.
Whether you’re planning an expansion, struggling with an undersized system, or dealing with a panel that’s overdue for replacement, Saiyan Electric has the commercial electrical expertise to assess your situation honestly and execute the upgrade correctly. We’ll analyze your load, size the right solution, handle every permit and inspection, and deliver a finished installation your business can depend on.
Call (310) 461-2277 or Book Online today to schedule your commercial panel assessment in Downey, CA. Trust Saiyan Electric for safe, code-compliant work that protects your business and keeps your operations running.
(310) 461-2277
info@saiyanelectric.com
Downey, Cerritos, Whittier & surrounding areas
Available for urgent electrical needs
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.
