If your Orange County home was built before 1985, you may have outdated or dangerous wiring: knob-and-tube (pre-1950), aluminum branch circuits (1965-1973), or deteriorated cloth-insulated wiring. Aerosphere performs whole-home rewiring projects across OC with full permits, inspections, and minimal drywall damage using fish-tape and old-work techniques.
Services We Provide
Knob-and-Tube Replacement
Complete removal and replacement of pre-1950 knob-and-tube wiring. Required for most insurance carriers and for adding insulation.
Aluminum Branch Wire Replacement
Replace 1965-1973 aluminum branch circuit wiring (15A and 20A circuits) with copper. CPSC-identified fire hazard.
Cloth-Insulated Wire Replacement
Replace 1950s-1970s cloth-and-rubber insulated wiring that has become brittle and dangerous.
Whole-Home Rewire (Full Replacement)
Complete rewire of all branch circuits with new 12 AWG copper romex. Includes new outlets, switches, GFCI/AFCI breakers, and grounding throughout.
Partial Rewire / Add Circuits
Add new circuits for kitchens, bathrooms, garages, EV chargers, or appliance upgrades. Common during remodels.
Grounding Retrofit
Add equipment grounding throughout home to support 3-prong outlets and modern appliances.
2026 Pricing in Orange County
| Service | Typical Cost | Notes |
|---|---|---|
| Whole-home rewire, small home under 1,500 sq ft | $12,000 – $22,000 | Per circuit pricing |
| Whole-home rewire, 1,500-2,500 sq ft | $15,000 – $28,000 | Most typical OC home |
| Whole-home rewire, 2,500-3,500 sq ft | $22,000 – $40,000 | Larger homes |
| Knob-and-tube partial removal (per circuit) | $650 – $1,400 | Single circuit replacement |
| Aluminum branch retrofit (per outlet) | $95 – $185 | AlumiConn or CO/ALR |
| Add new dedicated circuit | $450 – $1,200 | 20A circuit + outlet |
| Grounding retrofit (per circuit) | $200 – $450 | For 3-prong outlets |
Why Orange County Homeowners Choose Aerosphere
- C10 + C20 licensed — Both electrical and HVAC contractor licenses (CSLB #1108650).
- Same-day response — Most calls dispatched same-day across Orange County.
- Free written estimates — No hidden fees, no high-pressure sales.
- Permits handled — We pull all required permits and coordinate city inspections.
- Full warranty — Parts and labor warranty on every job.
- Licensed and insured — General liability and workers comp.
Get a Free On-Site Estimate
Aerosphere Electric provides free written estimates across Orange County. Same-day response on emergency calls.
Call 714-499-6656Frequently Asked Questions
How do I know if my home needs rewiring?
Signs you need rewiring: 2-prong outlets throughout, flickering lights when appliances start, breakers tripping often, warm switches or outlets, burning plastic smells, knob-and-tube visible in attic, aluminum branch wires (silver, marked AL), or cloth-insulated wires. Insurance carriers often require disclosure or replacement before they will write a policy.
How much does whole-home rewiring cost in Orange County?
For a typical 1,500-2,500 sq ft OC home, $15,000-$28,000. Smaller homes under 1,500 sq ft run $12,000-$22,000. Larger homes 2,500-3,500 sq ft run $22,000-$40,000. Partial rewires (single circuit or aluminum retrofit) run much less ($650-$1,400 per circuit).
How long does whole-home rewiring take?
7 to 14 days of on-site work depending on home size, with minimal disruption since we work room-by-room. Power is restored at end of each work day. Permit + inspection adds 1-2 weeks to total project. Aerosphere coordinates with SCE if any panel work is required.
Will rewiring damage my walls?
Some drywall opening is required, but we minimize damage by fishing wire through existing chases and using old-work boxes. We typically open holes at top and bottom of each wall (covered by baseboard and crown molding) or behind switches/outlets. Drywall patch and texture is included in our quotes (paint match is the homeowner responsibility).
Service Areas
Aerosphere Electric serves all of Orange County including: Anaheim · Irvine · Santa Ana · Huntington Beach · Garden Grove · Fullerton · Costa Mesa · Mission Viejo · Fountain Valley · Yorba Linda · Lake Forest · Newport Beach · Tustin · Orange · Buena Park · Brea. C10 + C20 California contractor license 1108650.