Electrician in Altadena, CA: Rebuilds & Panel Upgrades

Altadena's housing stock runs the full range: 1920s Craftsman bungalows with original cloth-insulated wiring, mid-century ranch homes on 100-amp services, and lots where a brand-new house is being framed from the foundation up. That mix means an electrician in Altadena can be setting a temporary power pole on one street and chasing a failing fuse panel on the next.

Almost every call we take here falls into one of three buckets, and each has a different starting point:

• Rebuild and new construction wiring — temporary power, a new service, full rough-in and trim-out, with inspections at each stage.
• Older-home upgrades — panel upgrades, rewiring, grounding, and replacing outdated devices in homes that are still standing.
• Added loads — EV chargers, heat pumps, induction ranges, ADUs, and battery storage on services never sized for them.

Rebuild and New Construction Electrical in Altadena

New builds follow a predictable order, and getting the sequence right keeps the project from stalling at inspection. A typical Altadena rebuild electrical scope looks like this:

1. Temporary power so the trades have safe, metered electricity on site — see our guide to temporary power pole installation.
2. Service and meter coordination with Southern California Edison, including whether the lot will be fed overhead or underground.
3. Rough-in wiring, boxes, and grounding before insulation and drywall, followed by a county rough inspection.
4. Panel and subpanel installation, circuit layout, and dedicated circuits for kitchen, laundry, HVAC, and EV.
5. Trim-out — devices, fixtures, smoke and CO alarms — then the final inspection and sign-off.

One Altadena-specific note: SCE has committed to undergrounding dozens of miles of distribution line here, so the service on your street may not match what was there before. Confirm the point of connection with SCE before the meter and panel location is set — moving a service afterward is expensive.

Wire for the Loads You'll Add Later

If the walls are already open, spend the small extra now: a 200-amp service instead of 125, a panel with spare breaker spaces, a conduit stub to the garage for a future EV charger, and a spare run for a heat pump or backup battery. Adding those later costs multiples of what they cost at rough-in.

Panel Upgrades and Rewiring for Standing Homes

Plenty of Altadena homes run on electrical systems built for a fraction of today's demand. Signs it's time to look at the panel or the wiring behind it:

• A fuse box, or a Zinsco or Federal Pacific panel — both are considered a fire risk and most insurers flag them.
• Two-prong outlets throughout, meaning no equipment ground.
• Cloth-insulated wiring, knob-and-tube, or aluminum branch circuits from the 1960s and 70s.
• Breakers that trip when the microwave and AC run together, or lights that dim when the compressor kicks on.
• Warm cover plates, scorch marks, or a burning smell at an outlet or panel — not a wait-and-see item.

A 200-amp service upgrade is the usual fix, often bundled with grounding and bonding corrections that were never done. Scope and pricing are on our Altadena panel upgrade page.

EV Chargers, Heat Pumps, and Bigger Loads

Before adding a Level 2 charger or a heat pump, a licensed electrician should run a load calculation on your existing service rather than guessing. Many Altadena homes can take a 40- or 48-amp charger as-is; others need a panel upgrade or a load-management device that shares capacity between the charger and the rest of the house. Our team is EVITP-certified, which several rebate and incentive programs require — more on that on our Altadena EV charger installation page.

Permits and Inspections in Unincorporated Altadena

Altadena is unincorporated Los Angeles County, so electrical permits do not go through the City of LA. Building and electrical permits are handled by LA County, and the county runs an in-person One-Stop Permit Center on West Woodbury Road for rebuild projects, with free plan-check consultations by appointment.

A licensed contractor should pull the permit under their own license — not under yours as an owner-builder. Keep the signed-off permit card: it is what a buyer's inspector, an appraiser, and your insurance carrier will ask for later.

What Altadena Electrical Work Typically Costs

Every house is different and prices move with materials and utility fees, so treat these as planning ranges, not quotes:

• Panel upgrade, 100A to 200A: roughly $3,000–$6,500, more if the meter, mast, or service entrance moves.
• Temporary power pole for a rebuild: roughly $1,200–$3,000 including permit and utility coordination.
• Level 2 EV charger install: roughly $800–$2,500 for a straightforward run, more with a subpanel or trenching.
• Whole-home rewiring: commonly $12,000–$40,000+ depending on square footage, access, and finish repair.
• New construction wiring: usually priced per square foot, with the fixture package quoted separately.

Permit fees, utility fees, and any rebates should be verified with LA County and SCE — those programs change, and we won't quote a rebate we can't confirm.

Frequently Asked Questions

Do I need a permit for electrical work in Altadena?

Yes for anything beyond simple like-for-like device replacement. Panel upgrades, new circuits, service changes, EV charger circuits, and all rebuild wiring require a permit from Los Angeles County, since Altadena is unincorporated. We pull the permit and schedule the inspections as part of the job.

How long does a panel upgrade take in Altadena?

Most residential service upgrades are a one-day job for the physical work, with power off for several hours. The full timeline is usually one to three weeks end to end, because it depends on permit issuance, the county inspection, and Southern California Edison scheduling the reconnect.

Can my existing service handle an EV charger?

Often yes — a load calculation on your current panel is the only way to know. If the service is tight, a load-management device or a subpanel is frequently cheaper than a full upgrade, though 200 amps is the better long-term answer if a heat pump or induction range is also coming.

Do you handle rebuild and new construction electrical in Altadena?

Yes. We are a licensed C-10 electrical contractor and handle the whole sequence — temporary power, service coordination with SCE, rough-in, panel and circuits, trim-out, and final inspection — working alongside your general contractor's schedule.

What should I do if I smell burning or see sparks at an outlet?

Shut off the breaker feeding that circuit if you can do it safely, stop using the outlet, and call an electrician the same day. A burning smell, buzzing, or scorch marks points to a loose connection or arcing, a common cause of residential electrical fires. We answer emergency calls 24/7.

Talk to an Altadena Electrician

911 Construction & Electric Inc. is a licensed, bonded, and insured C-10 electrical contractor (CA Lic. #1027421) based in Pasadena, serving Altadena, Glendale, Burbank, and the rest of the Los Angeles area. Panel upgrade, rewire, EV charger, or a full rebuild — we'll walk the job, explain the options, and give you a written estimate. Request a free estimate or call 747-255-8595 — we answer 24/7 for electrical emergencies.