Electrical Service Upgrades in Los Angeles, CA

Buzo Electric Co performs electrical service upgrades in Los Angeles, CA: 200A and 400A services, Span smart panels, and subpanels for homes adding EV charging, heat pumps, pools, theaters, or standby power. We are a C-10 electrical contractor and integrator, so the same firm that sizes your service also installs the Lutron lighting control, Generac standby power, and Control4 system that service will carry. You get a load calculation, a panel designed for the next twenty years of the house, and a clean handoff with Los Angeles Department of Building and Safety permits and utility coordination handled.

What Our Electrical Service Upgrades Cover

• 200A service upgrades. A breaker panel 200 amp is the working baseline for a Los Angeles home adding a Level 2 EV charger, a heat pump, or induction cooking. We replace the existing electrical panel, upgrade the service entrance conductors, and coordinate the utility work.
• 400A services for estates and large renovations. When the load calculation shows a theater, two or more EV chargers, pool equipment, and electric HVAC on one property, a 400A service with distributed subpanels is the correct design, not a compromise.
• Electrical panel replacement. If the existing breaker box is a 100 amp panel, has no main breaker, or uses obsolete hardware, a breaker box replacement brings the home to current code with copper bussing, AFCI and GFCI protection, and labeled circuits.
• Span smart panel installation. A Span smart electrical panel gives you per-circuit monitoring and control from an app. Paired with standby power or solar, it manages which loads stay on, which is useful during an outage when the generator should carry essentials first.
• Subpanels. A subpanel at the garage, pool equipment pad, ADU, or theater rack keeps home runs short and leaves room in the main electrical panel for the home as it grows.
• Outdoor and relocated panels. Where the existing circuit breaker box sits inside a closet or behind finished millwork, we design a code-compliant outdoor breaker panel location with working clearance and weatherproof hardware.
• Service upgrades that feed a larger project. Many of our service upgrades are the first phase of a Generac standby generator, Tesla Wall Connector, or whole-home automation installation. We design the panel schedule with that scope in mind from day one.

How Electrical Service Upgrades Work in Los Angeles, CA

1. Load calculation and design

We start with a load calculation per NEC Article 220, not a guess. We document the existing service, the panel condition, and every planned load: EV charging, heat pump, pool, theater, standby power. The calculation determines whether the house needs 200A, 400A, or a Span smart panel with managed loads on the existing service.

2. Permits and utility coordination

We pull the permit with Los Angeles Department of Building and Safety and file the service change with the utility, LADWP or Southern California Edison depending on the property. Meter spot, conductor sizing, and the service entrance detail get resolved on paper before anyone opens a wall.

3. Installation day

We schedule the utility disconnect, demolish the old breaker box, set the new panel, land the service entrance conductors, and transfer every circuit to new breakers with a typed directory. Grounding and bonding get brought to current code, including the grounding electrode system and bonding of water and gas lines.

4. Inspection and release

The city inspector signs off, the utility releases the meter, and power returns the same day in the standard case. You receive the panel schedule, the load calculation, and documentation for any smart panel configuration.

5. The next phase

If the service upgrade feeds an EV charger, a Generac automatic transfer switch, or a renovation rough-in, we move straight into that scope. One firm, one permit history, one point of accountability.

What Affects the Price of Electrical Service Upgrades in Los Angeles, CA

The honest cost drivers for a service upgrade are specific and knowable up front:

• Amperage and panel type. A 200 amp main breaker panel, a 400A service with CT metering, and a Span smart panel are different scopes with different hardware and labor.
• Service entrance condition. Overhead versus underground service, the length and condition of the conductors, and whether the mast or conduit must be rebuilt all move the number.
• Panel location. Relocating a panel outdoors or out of a closet adds conduit runs and circuit extensions beyond a like-for-like electrical panel replacement.
• Grounding and code corrections. Older Los Angeles homes often need the grounding electrode system, bonding, and AFCI or GFCI protection brought current as part of the permit.
• Utility and permit scope. LADWP and SCE have different service change processes, and the meter spot can add requirements that only a site visit reveals.

Because the cost of replacing an electrical panel depends on these conditions, we quote from a site walk and a load calculation, not a flat menu. Request a quote and we will put a firm number on your specific service.

Why Los Angeles, CA Chooses Us

Buzo Electric Co is the integrator-electrician: the one firm on a project that holds the C-10 license and programs the Control4 or Josh AI system. That matters for a service upgrade because the panel is not the end product. It is the foundation for the EV charging, standby power, lighting control, and AV that follow. When the same firm designs the 400A service and the rack it feeds, the load calculation reflects the whole project, not a fragment of it.

We work on whole projects: new builds, full renovations, estate upgrades, and commercial build-outs, in design-build coordination with architects, GCs, and AV consultants. We explain the job in concrete terms, the amperage, the brand, the model line, and what each decision makes possible, and we quote the full scope so there are no gaps between trades.

Our shop is in West Adams, and we serve Los Angeles along with Beverly Hills, Santa Monica, Malibu, Pacific Palisades, Brentwood, Bel Air, West Hollywood, Culver City, Marina del Rey, Venice, Calabasas, Hidden Hills, and Manhattan Beach. CSLB C-10 #1048529, bonded, workers' comp.

Electrical Service Upgrades Questions, Answered

Do I need a 200A or 400A service?

The load calculation decides, not a rule of thumb. A 200A service carries most Los Angeles homes, including one EV charger and a heat pump. Two or more EV chargers, pool equipment, a theater, and electric HVAC on one property usually push the math to 400A, or to a Span smart panel managing loads on 200A.

Is a Span smart panel a replacement for a service upgrade?

Sometimes. A Span smart panel can manage loads so a 200A service carries equipment that would otherwise require 400A, and it adds per-circuit monitoring and app control. We run the load calculation both ways and show you which design fits the house and the planned equipment.

How long is the power off during an electrical panel replacement?

For a standard like-for-like breaker box replacement, power is typically off for one working day, between the utility disconnect in the morning and the meter release after inspection. Relocations and 400A services can extend that, and we tell you the expected outage window before work starts.

Can you upgrade the service before we add an EV charger or generator?

Yes, and sizing the service for that future equipment is the point of doing it first. We design the panel schedule around the Tesla Wall Connector, Level 2 charger, or Generac automatic transfer switch you plan to add, so the second phase lands on prepared infrastructure instead of a change order.

Does a service upgrade require a permit in Los Angeles?

Yes. Every service upgrade requires a permit from Los Angeles Department of Building and Safety, a city inspection, and coordination with LADWP or SCE for the disconnect and reconnect. We handle the filings and scheduling as part of the scope.

Get Started

Call us or request a quote and describe the property and what you plan to add: EV charging, standby power, a renovation, a theater. We will schedule a site walk, run the load calculation, and give you a firm scope for the service your house needs. Panel capacity is the first constraint on every project; resolving it early keeps the rest of the schedule intact.

Related guide: electrical panel upgrades — Complete Guide

Prefer to talk it through? Call (323) 252-7498 — a quick call is usually the fastest way to get a straight answer for your situation.