What the visit should clarify
For whole-home rewiring, Home Systems LA looks at the visible symptom, the system age, the most likely failure points, and the reason the problem happened now. Valley homes add specific friction: hot attics, older postwar construction, ADU conversions, utility capacity, condo access, hillside streets, and dense apartment corridors. That is why a quote should not be a generic line item without photos, readings, and access notes.
The common risks for this service include wall opening scope, old plaster, service upgrades, occupied-home phasing, AFCI/GFCI planning. Some are simple repair items. Others are signals that replacement, code correction, electrical capacity, water pressure, venting, or sewer-line documentation may be part of the real scope.
Typical cost drivers
| Scope | Typical Valley cost driver | Planning note |
|---|---|---|
| Diagnostic visit | $12000 and up, depending on access and urgency | Best for unclear symptoms, no-cool calls, leaks, trips, and repeat failures. |
| Targeted repair | home size, wall finish, attic/crawl access | Ask for photos and the failed part or location to be documented before closeout. |
| Replacement or upgrade | Can reach $48000+ when equipment, access, electrical, venting, or permit scope grows | Compare repair age, comfort outcome, code corrections, and future remodel plans. |
Homeowner checklist before the appointment
- existing wiring type
- grounding
- panel age
- attic access
- remodel plans
Repair, replacement, or upgrade?
Repair makes sense when the failure is isolated, the equipment or pipe still has useful life, the system meets the home's actual load, and the repair does not hide a larger safety or inspection issue. Replacement or upgrade deserves attention when failures repeat, parts are obsolete, the system is undersized or oversized, utility capacity has changed, or the homeowner is already planning an ADU, EV charger, heat pump, remodel, or water-heating change.
In the Valley, timing matters. AC problems that seem minor in April can become urgent in June. A small panel concern can block an EV charger or heat pump. A drain that keeps slowing down can become a sewer backup. A water heater closet can expose venting, shutoff, seismic, or expansion issues. The service page is built to help you name those risks before you book.
When whole-home rewiring is NOT the right answer
An honest service page admits when the service it sells is wrong for the situation. Three scenarios where a different decision is the better engineering call:
- When NOT to upgrade to 200A. If the existing 100A or 125A panel is not full, has no Federal Pacific or Zinsco breakers, and the household has no plans for an EV, heat pump, or HPWH within 7 years, a service upgrade is premature. A load calc against actual peak draw is worth more than a default 200A upgrade quote.
- When a Span Smart Panel is overkill. If you are not planning solar, batteries, or active load shedding, a standard Square D QO 200A is a more cost-effective panel for the same protection. Smart panels add ~$3,500 in equipment that delivers value mainly when paired with PV or storage.
- When a sub-panel beats a full upgrade. For an ADU or workshop, a 100A sub-panel fed from the existing 200A main is usually the better engineering than a full service upgrade. Less utility coordination, faster permit, similar headroom for the actual load.
Common misconceptions about whole-home rewiring
- "A breaker that trips is the breaker's fault." Reality: Modern breakers trip because something on the circuit is drawing more than the rating. Replacing a tripping breaker without diagnosing the load is how house fires start.
- "AFCI breakers are optional." Reality: CEC §210.12 requires AFCI on all 15A and 20A bedroom branches. Not optional. Insurance companies are now denying claims on homes that don't comply.
- "The grounding rod is enough." Reality: Grounding electrode + intersystem bonding terminal + ground/neutral separation at sub-panels are three independent requirements. Missing any one of them is a code violation and a real shock hazard.
Local code and authority context
Whole-Home Rewiring in the San Fernando Valley is shaped by these published references: California Electrical Code §210.12 (AFCI on bedroom branches), Title 24 §150.0 (kitchen/bath/exterior GFCI), NEC §625 (EV charging provisions), LADBS Plan Check guidance for service upgrades. The authorities-having-jurisdiction (AHJ) most relevant to this scope: LADBS Electrical Permit, LADWP service planning for service upgrades, BWP service planning for Burbank addresses, EVITP-certified installer for EV rebate eligibility. The contractor should be able to tell you which references apply to your scope before the quote is signed, not after the inspector flags a correction.
Popular Whole-Home Rewiring areas
Related electrical services
Companion services across other trades
Whole-Home Rewiring often touches adjacent HVAC, electrical, or plumbing scope. These cross-trade companions are the most common reasons a single-trade quote later needs a second visit:
- AC RepairNo-cool calls, weak airflow, short cycling, hot rooms, tripped condenser breakers, and first-heat-wave failures.
- AC ReplacementOld condensers, repeated compressor failures, high summer bills, poor comfort, and right-sizing decisions.
- Heat Pump InstallationGas-to-electric upgrades, efficient heating and cooling, ADU comfort, and CEC electric-readiness planning.
Get a tech window without guessing.
Use the external scheduler, then have the city, system type, access notes, photos, and urgency ready so the visit starts with useful context.