Cost to Rewire a House in Los Angeles (2026 Guide)

If you own an older home in Southern California, you may be wondering about the cost to rewire a house in Los Angeles before tackling a renovation, fixing a safety issue, or preparing to sell. Rewiring is one of the most important electrical investments a homeowner can make, and the price depends heavily on your home's size, age, and existing wiring. This 2026 guide breaks down realistic price ranges, what drives the cost, and how to know whether your LA home actually needs new wiring.

911 Construction & Electric Inc. is a C-10 licensed, EVITP-certified electrical contractor (Lic. #1027421) serving Los Angeles, Pasadena, Burbank, Glendale, Altadena, and the San Fernando Valley. Below, we share the same numbers and guidance we give homeowners every day. Keep in mind that every home is different, so the figures here are estimates only and should be verified with an on-site evaluation.

How Much Does It Cost to Rewire a House in Los Angeles?

On average, the cost to rewire a house in the Los Angeles area ranges from roughly $8,000 to $30,000 or more, depending on square footage and complexity. Smaller homes and condos sit at the low end, while large, multi-story, or historic homes with difficult access land at the top. Here is a general breakdown of house rewiring cost by home size:

• Up to 1,000 sq ft: $6,000-$12,000 - typical for condos, small bungalows, and ADUs.
• 1,000-1,500 sq ft: $8,000-$16,000 - the cost to rewire a 1,500 sq ft house in LA most often falls in this band.
• 1,500-2,500 sq ft: $12,000-$25,000 - mid-size single-family homes with multiple bedrooms and baths.
• 2,500+ sq ft: $20,000-$40,000+ - larger or multi-story homes, often requiring a panel upgrade too.

These ranges cover whole-home electrical wiring installation including new wiring, outlets, switches, and often a panel evaluation. A partial rewire (one floor, a kitchen, or a specific circuit) costs much less. Because labor and permit fees in Los Angeles run higher than the national average, always get a written, itemized quote before committing.

What Affects the Cost to Rewire a House?

Two homes of the same size can have very different rewiring prices. Here are the biggest factors our electricians weigh when estimating a project.

Home Size, Layout, and Number of Circuits

More square footage means more wire, more outlets, and more labor hours. Open layouts are faster to wire than homes chopped into many small rooms. The number of circuits, dedicated appliance lines, and the amount of recessed or specialty lighting all push the total up.

Age of the Home and Existing Wiring Type

Many older Los Angeles, Pasadena, and Altadena homes still have outdated systems like knob-and-tube or early aluminum branch wiring. Knob and tube wiring replacement cost tends to be higher because the old material must be carefully removed and the home brought up to current code. Cloth-insulated wiring and ungrounded two-prong outlets also add complexity.

Wall Access and Finishes

Running new wire is easiest when walls are open during a remodel. In a finished home, electricians must fish wires through plaster or drywall, which takes longer and may require patching afterward. Lath-and-plaster walls common in pre-1950s LA homes are tougher to work in than modern drywall.

Panel Upgrades and Permits

A rewire often reveals that the main service panel is undersized or unsafe. If so, a panel upgrade may be bundled in, typically adding $2,500-$5,000. Permits and inspections through your local building department are required for a legal, safe rewire and are built into a reputable contractor's quote.

Signs Your Los Angeles Home Needs Rewiring

Not sure if you need a full rewire? Watch for these warning signs, several of which are also safety hazards that warrant prompt attention:

• Breakers that trip repeatedly or fuses that blow often
• Flickering or dimming lights when appliances turn on
• Discolored, warm, or buzzing outlets and switch plates
• A burning or fishy smell near outlets or the panel
• Two-prong, ungrounded outlets throughout the home
• Reliance on power strips because there aren't enough outlets
• Knob-and-tube, cloth, or aluminum branch wiring

If you notice scorching, sparking, or that burning odor, treat it as urgent and call an emergency electrician in Los Angeles right away rather than waiting. For non-urgent concerns, a professional electrical repair inspection can tell you whether targeted fixes or a full rewire makes more sense.

Knob-and-Tube and Outdated Wiring in Older LA Homes

Los Angeles has a huge stock of charming pre-war homes, and many still hide home rewiring issues behind the walls. Knob-and-tube wiring was never designed for today's electrical loads - air conditioners, EV chargers, induction ranges, and home offices. It also lacks a ground wire, can degrade where it contacts modern insulation, and may not be insurable. Replacing it improves safety, lowers fire risk, and can make your home easier to insure and sell.

The House Rewiring Process: What to Expect

A professional whole-house rewire generally follows these steps:

• Inspection & estimate: an electrician maps your existing wiring and provides a written, itemized quote.
• Permitting: permits are pulled with your local building department before work begins.
• Rough-in: new wiring is run to outlets, switches, fixtures, and the panel.
• Panel & connections: the service panel is upgraded or rebalanced as needed and circuits are connected.
• Inspection & finish: the city inspects the work, then walls are patched and outlets finished.

Most single-family rewires take three to ten working days depending on size and whether you're living in the home during the work.

How to Save on Electrical Wiring Installation

• Combine the rewire with a planned remodel while walls are already open
• Bundle a needed panel upgrade with the rewire to share labor and permit trips
• Ask about utility and energy rebates - programs and eligibility change, so verify current offers
• Prioritize a phased approach if a full rewire isn't immediately affordable
• Always hire a licensed, insured C-10 contractor to avoid costly code failures

Pricing, rebate programs, and incentives vary by home and by year, so treat any figure here as a starting point and confirm details with a licensed electrician and your utility. Homeowners in nearby cities can also reach our team for service in Pasadena and Burbank.

Frequently Asked Questions

How much does it cost to rewire a house in Los Angeles?

Most whole-home rewires in the LA area run from about $8,000 to $30,000, with smaller homes near the low end and large or historic homes higher. Your exact price depends on square footage, wiring type, wall access, and whether a panel upgrade is included.

How long does it take to rewire a house?

A typical single-family home takes three to ten working days. Smaller homes and condos can be faster, while large multi-story or hard-to-access homes take longer, especially if walls must be opened and patched.

Is rewiring a house worth it?

Yes, if your home has outdated or unsafe wiring. Rewiring reduces fire risk, supports modern appliances and EV charging, can lower insurance hurdles, and often boosts resale value. It's one of the highest-value safety upgrades for an older LA home.

Do I need a permit to rewire my house in Los Angeles?

Yes. A whole-house or significant rewire requires a permit and inspection through your local building department. A licensed C-10 electrical contractor handles permitting for you and ensures the work passes inspection.

How do I know if my house has knob-and-tube wiring?

Look in the attic or basement for ceramic knobs and tubes with single insulated wires, and check for two-prong ungrounded outlets. The surest way to know is a professional inspection, which also tells you whether replacement is needed.

Get a Free Rewiring Quote in Los Angeles

Ready to find out exactly what it will cost to rewire your home? 911 Construction & Electric Inc. offers honest, itemized estimates from licensed, EVITP-certified electricians across Los Angeles and the surrounding area. Contact us or call 747-255-8595 today for your free quote.