Whole-Home Rewiring in Greater Los Angeles

Rewiring an old house is usually worth it when safety risks appear or the system can’t support modern electrical loads. The most common drivers are aging conductors and undersized circuits that cause breaker trips and light flicker under heavy appliances. In older homes, mixed‑era wiring tied to oversized breakers can hide trouble until a big load runs. Rewiring improves safety, brings protection up to current standards, and prepares the home for today’s devices, often alongside GFCI upgrades and surge protection. Our licensed, bonded, and insured technicians can also add phone and internet cabling during the project. Our crews regularly handle older‑home projects across the Tarzana area.

Look for these signals that point to a whole‑home rewire:

• Circuit breaker trips repeatedly.
• Lights flicker when using heavy appliances.
• Frequent power surges.
• Discoloration or scorch marks on outlets.

Shut off any suspect circuit and avoid use until a licensed electrician inspects it.

Updated: 2026-08-12

Need help in Tarzana, CA? Call (800) 660-8076 or book online.

There isn’t a reliable per‑square‑foot price for house rewiring; final cost is set after an on‑site inspection of your home’s wiring, panel, and access points. The biggest cost swings come from how much of the system must be replaced, how easy it is to reach runs, and whether safety upgrades are needed. Square‑foot rules of thumb often miss hidden splices or past add‑ons that change the scope. Our team frequently completes full rewires across the Los Angeles area, including projects near Glendale, and we tailor pricing to the actual conditions.

What most affects the final price:

• Existing wiring condition and how much needs replacement
• Panel capacity and the need for new circuits or breakers
• Access through attics, crawlspaces, and finished walls
• Safety upgrades like adding GFCI protection and new grounded outlets

If you’re seeing repeated breaker trips, flickering under load, or outlet discoloration, schedule a licensed evaluation before budgeting by square foot.

Updated: 2026-06-18

Need help in Glendale, CA? Call (800) 660-8076 or book online.

Replacing knob-and-tube wiring is not a flat-price job; Powell Electric confirms cost after an in-home assessment because conditions vary by home and access. The biggest driver is how much of the house still runs on knob-and-tube and how easy it is to reach attics, walls, and crawl spaces. Most homes benefit from full replacement rather than spot fixes, especially where insulation is brittle or circuits are ungrounded. In our field work, time fishing new cable through finished walls often outweighs the material cost. We handle this work in Sherman Oaks homes regularly and coordinate related upgrades when needed.

Typical factors that change the price:

• Square footage and number of affected circuits
• Accessibility (attic/crawl space) and wall type (plaster vs drywall)
• Panel capacity or upgrade needs and new dedicated circuits
• Safety upgrades like GFCI protection and any wall/ceiling patching

Until evaluated, avoid plugging space heaters or other high-draw devices into suspected knob-and-tube circuits.

Updated: 2026-07-02

Need help in Sherman Oaks, CA? Call (800) 660-8076 or book online.

House rewiring cost per square foot varies widely and is confirmed only after an in‑home assessment of your wiring and access. The biggest cost driver is how much of the home must be opened or fished to replace unsafe or outdated circuits. We also evaluate the electrical load and any safety upgrades that must be included; in older homes, the hours are won or lost in how easily we can fish new cable without opening walls. Our licensed team regularly handles full and partial rewires across the Costa Mesa area. If you’re only seeing issues on a few circuits, a targeted repair may be more cost‑effective than a whole‑home rewire.

Key factors that change the per‑sq‑ft price:

• Panel capacity upgrades and new breakers
• Wall/attic/crawlspace access and drywall or plaster restoration needs
• Replacement of hazardous wiring types and addition of GFCI protection where required
• Added scope like new circuits, low‑voltage/data cabling, surge protection, or EV charger runs

Schedule an on‑site evaluation to get an itemized scope and total price; use any per‑square‑foot figure only as a rough planning metric.

Updated: 2026-07-08

Need help in Costa Mesa, CA? Call (800) 660-8076 or book online.

Knob-and-tube wiring replacement cost is determined after an on-site inspection because every home’s layout and condition differ. The price mainly reflects how much wiring must be replaced, how accessible the paths are, and what safety upgrades are needed for today’s standards. Our team performs these projects regularly in the North Hollywood area and provides up-front pricing once we’ve evaluated your home.

Key factors that typically impact the estimate include:

• Total square footage and number of circuits to replace
• Wall and ceiling construction that affects fishing new cable
• Access to attics and crawlspaces without major opening and patching
• Electrical panel capacity and add-ons like GFCI outlets or surge protection A full rewire is usually best when the original wiring is brittle or modified; targeted replacement can be a short-term bridge, but if you notice burning smells or outlet scorch marks, turn power off to that area and call a licensed electrician immediately.

Updated: 2026-07-29

Need help in North Hollywood, CA? Call (800) 660-8076 or book online. “Powell Electric did an excellent job in rewiring and installing a light fixture in the kitchen.” — Dee Shane