TL;DR
- Panel upgrades in San Diego run $1,800–$8,500 installed depending on panel size and service configuration.
- A 100A-to-200A upgrade (the most common job) costs $2,800–$4,200. A 200A-to-400A upgrade for large homes or ADUs runs $4,500–$8,500.
- Permits cost $150–$400 depending on the city; permits are not optional. Unpermitted panel work voids insurance and blocks home sales.
- Most installs are one-day jobs. Power is off 4–6 hours while SDG&E coordinates the disconnect and reconnect.
- Common triggers: EV charger, heat pump, ADU, aging fire-risk panel (Federal Pacific, Zinsco), or a failed pre-sale inspection.
An electrical panel upgrade is one of the bigger single-trade residential electrical jobs — but the pricing isn’t mysterious. San Diego electricians charge based on panel amperage, what’s being replaced, and a few site-specific factors. Here’s every number you need, organized by panel size.
What does a panel upgrade cost by amperage in San Diego?
The panel size — measured in amps — is the primary cost driver.
| Panel upgrade | Installed cost (San Diego, 2026) | Typical use case |
|---|---|---|
| 60A → 100A | $1,800–$2,800 | Very old homes, small cottages |
| 100A → 150A | $2,200–$3,400 | Homes without major new loads |
| 100A → 200A | $2,800–$4,200 | Most common residential upgrade |
| 150A → 200A | $2,200–$3,500 | Mid-size homes adding EV or heat pump |
| 200A → 400A | $4,500–$8,500 | Large homes, ADUs, EV + pool + heat pump combos |
| New sub-panel (60–100A) | $1,400–$2,800 | Detached garage, ADU, pool equipment |
These prices include everything that should be in a legitimate San Diego quote: the new panel, meter socket, grounding electrode system, AFCI/GFCI breakers where code requires them, whole-home surge protection, permits, and SDG&E coordination for the disconnect/reconnect. If a quote doesn’t break these out as line items, ask.
What’s included in a San Diego panel upgrade?
A complete job has several components beyond just the box.
Every panel upgrade from a licensed San Diego electrician should include:
- New main breaker panel — Square D QO, Eaton CH, or Siemens (all UL-listed, all reliable)
- New meter socket — rated for the new amperage and SDG&E’s meter spec
- Grounding electrode system — ground rod, supplemental ground if needed, bonding to water service
- AFCI and GFCI breakers — required by current NEC for bedrooms, living spaces, kitchens, bathrooms, outdoors
- Whole-home surge protection device (SPD) — increasingly standard on new panels
- Permit from the city or county — $150–$400 depending on jurisdiction
- SDG&E coordination — scheduling the morning disconnect, completing work, calling for re-energization
- Inspection sign-off — the electrician meets the inspector; work isn’t done until it passes
One cost that surprises people: the permit is not optional. San Diego County cities (Chula Vista, El Cajon, Escondido, Carlsbad, etc.) all require permits for panel upgrades. An unpermitted panel is uninspected work — and it voids your homeowner’s insurance if the cause of a fire is ever traced to the panel.
What does a 100-amp to 200-amp upgrade cost?
The 100A-to-200A upgrade is the most common job — and the most competitive to price.
Most San Diego single-family homes built in the 1960s through 1980s have 100A service. A 100A panel can handle a typical load profile: HVAC, kitchen appliances, washer/dryer, lighting. What it can’t handle cleanly: adding a Level 2 EV charger (32–48A continuous), a heat pump (15–30A depending on size), pool equipment, or a large AC unit — especially not in combination.
A 100A-to-200A upgrade in San Diego runs $2,800–$4,200 installed. The range is driven by:
- Meter-to-panel distance — if the meter is at the front of the house and the panel is in the back garage, service entrance cable has to run through the structure ($300–$800 more)
- Overhead vs. underground service — replacing a weatherhead is simpler than working with corroded underground conduit ($400–$1,200 for underground complications)
- Whether the existing panel is Federal Pacific or Zinsco — these brands require full panel replacement regardless of amperage (no upgrade-in-place option). The job is the same scope, but the urgency is higher
For more detail on the 200-amp upgrade specifically, see our 200-amp panel upgrade guide.
What does a 200-amp to 400-amp upgrade cost?
A 400A service is the right move for large homes with multiple major loads running simultaneously.
The 200A-to-400A upgrade runs $4,500–$8,500 installed, and it’s a more involved job. At 400A, you’re typically installing a 400A meter main disconnect at the exterior (the utility connection point), then feeding two 200A panels inside — one main panel and one sub-panel, or a single large 400A panel where code allows.
Who actually needs 400A service in San Diego County:
- Homes over 3,500 sq ft with heat pump HVAC + EV charger + pool + hot tub
- Properties with an ADU that needs its own sub-panel
- Homes with three or more EV chargers (increasingly common in multi-vehicle households)
- Light commercial properties zoned residential (live/work, home studios)
For most single-family homes adding one EV charger and a heat pump, 200A service is sufficient — we do a load calculation per NEC Article 220 before recommending 400A. Upsizing to 400A when 200A handles the math is a $2,000–$4,000 unnecessary expenditure.
What do permits cost for panel upgrades in San Diego?
Permit cost varies by jurisdiction and is included in a legitimate quote.
San Diego County jurisdictions charge $150–$400 for electrical panel permits:
| Jurisdiction | Typical permit cost range |
|---|---|
| City of San Diego | $175–$350 |
| Chula Vista | $150–$300 |
| El Cajon | $150–$275 |
| Escondido | $175–$350 |
| Carlsbad | $200–$400 |
| Oceanside | $175–$350 |
| Poway | $200–$375 |
| La Mesa | $150–$275 |
| Unincorporated SD County | $150–$325 |
These numbers shift with jurisdiction fee schedules, which update annually. Your electrician pulls the permit and handles the inspection scheduling — it’s part of the job, not an add-on you manage yourself.
What the permit covers: a building inspector reviews the work to confirm the panel is installed to current NEC code, properly grounded, AFCI/GFCI breakers are in required locations, and the SDG&E meter socket meets utility specs. A passed inspection is your documentation that the work was done correctly.
When do you actually need a panel upgrade?
Not every problem requires a panel upgrade — here are the real triggers.
EV charger installation. A Level 2 EV charger (the kind that charges overnight, not a 110V trickle) pulls 32–48 amps continuously. If your panel is already near capacity or running a 100A service, adding 32–48A of sustained draw often requires an upgrade. We do a load calculation — sometimes a 100A service has enough headroom with load management; often it doesn’t.
Heat pump or new AC. High-efficiency heat pumps pull 15–30 amps depending on size. Pairing a new heat pump with an EV charger on a 100A panel is almost always an upgrade scenario.
ADU addition. An accessory dwelling unit needs its own sub-panel. If the main panel doesn’t have spare capacity to feed a 60–100A sub-panel, the main panel gets upgraded at the same time.
Fire-risk panels. Federal Pacific Stab-Lok, Zinsco/Sylvania, and Challenger panels have documented failure modes that insurance carriers are acting on. If you have one of these brands, the upgrade is often required — not optional — before insurers will renew or write new coverage. See our Federal Pacific and Zinsco guide for specifics.
Pre-sale inspection findings. Home inspectors flag undersized service and fire-risk panels routinely. Buyers ask for credits or remediation. Upgrading before listing often returns more than the cost in negotiating leverage.
Breakers that trip frequently. Repeated trips under normal load suggest the service is undersized for actual usage. If you’ve ruled out a single overloaded circuit (see our breaker tripping guide), the panel may genuinely be at capacity.
How long does a panel upgrade take in San Diego?
Most upgrades are one-day jobs with 4–6 hours of power-off time.
The standard timeline:
- 7:00 a.m. — Electrician arrives, materials staged
- 8:00–9:00 a.m. — SDG&E disconnects power at the meter
- 9:00 a.m. – 1:00 p.m. — Old panel out, new panel in, wiring transferred, grounding installed
- 1:00–2:00 p.m. — SDG&E reconnects, AFCI/GFCI breakers verified, surge protection installed
- 2:00–3:00 p.m. — Inspector signs off (inspection scheduled same morning or previous day)
- 3:00–4:00 p.m. — Final labeling, walkthrough, documentation
If your inspector can’t make it same-day, power gets restored after the work is completed, and the inspection happens within a day or two. In that case you get full power back the same day — the inspector signs off on the work at their visit.
Medical equipment, critical home offices, or temperature-sensitive animals: tell us when you book. We can run a portable generator to specific circuits during the power-off window.
Can a panel upgrade be combined with other work for savings?
Yes — combination jobs save on shared labor and SDG&E coordination.
If you’re adding an EV charger during the same visit as a panel upgrade, the EV charger install typically runs $400–$600 added on (versus $850–$1,800 as a standalone job). The savings come from shared SDG&E coordination time, same-day permits, and mobilization. Same logic applies for generator interlock installation, sub-panel additions, or whole-home surge protection — all share overhead costs when bundled.
Frequently asked questions
What size panel do I need for an EV charger and heat pump in San Diego?
A 200A panel handles an EV charger and heat pump in most San Diego homes with standard loads. We do a load calculation per NEC Article 220 before recommending any specific panel size. Homes with pool equipment, large AC systems, and multiple EVs may need 400A service — but for the typical San Diego home, 200A is sufficient.
How do I get the cheapest panel upgrade in San Diego?
Get three quotes from licensed (C-10) San Diego electricians. All three should pull permits — any quote that omits permits or offers a “no permit” discount is offering you future insurance and resale problems. Combining the panel upgrade with other work (EV charger, sub-panel) saves on shared mobilization costs. Scheduling outside peak summer months (May–September) sometimes yields faster availability.
Does a panel upgrade increase home value in San Diego?
Yes, in two ways. First, updated electrical is a positive line item on pre-purchase inspections — buyers don’t have to factor in a future upgrade. Second, modern panels (200A with AFCI/GFCI) are required by some insurance carriers and preferred by others. Homes with fire-risk panels (Federal Pacific, Zinsco) often face forced price reductions or non-negotiable repair credits at closing. Removing that liability is worth real money in San Diego’s market.
Bright Pro Electric quotes panel upgrades at flat-rate pricing across San Diego County — from Chula Vista to Carlsbad to El Cajon. Free in-home assessment before any work starts. See our panel upgrade service page for what’s included, or call (858) 808-6055) for a same-week quote.