Whole-Home Rewiring & Electrical Wiring Replacement
Older, damaged or inadequate wiring can limit what a property safely supports, and it becomes especially relevant during larger renovations.
J.I.C. Electric can evaluate existing wiring and perform appropriate replacement or rewiring as part of residential electrical improvements and remodel projects.
What Brought You to Rewiring?
Not every older house needs to be rewired. These are the situations where it genuinely comes up.
The wiring is old
Age matters less than type and condition. What is actually in the walls, and how it has been modified, is the real question.
- ✓Wiring type and condition assessed where accessible
- ✓Grounding and device condition reviewed
- ✓Replacement recommended only where warranted
Year built and any known past work helps.
There is known damage
Rodent damage, water intrusion, heat damage or improvised past work found during other repairs.
- ✓Extent of damage traced rather than patched around
- ✓Affected circuits documented
- ✓Replacement scoped to what is actually damaged
Photos of what was found help scope this.
You are remodeling anyway
The cheapest rewiring happens when the walls are already open for something else.
- ✓Rewiring scoped with the remodel
- ✓Access planned around finished areas
- ✓New circuits and devices updated together
See Remodel Electrical for the broader scope.
There are not enough circuits
Older houses were wired for far fewer loads, so everything shares. That shows up as tripping breakers and extension cords.
- ✓Existing circuit layout traced
- ✓New circuits added where they are actually needed
- ✓Panel capacity assessed with the plan
Note which rooms cause problems.
Recurring electrical problems
Repeated failures in the same area often point at the wiring rather than the devices.
- ✓Pattern traced across the affected circuits
- ✓Diagnosis before replacement
- ✓Partial replacement when that is the honest answer
Troubleshooting & Repairs is the place to start with diagnosis.
Buying or selling the property
Wiring questions come up in transactions, and the answers are worth having in writing.
- ✓Existing conditions documented in plain language
- ✓Corrections scoped where issues are identified
- ✓No formal inspection authority claimed
J.I.C. performs electrical work, not property inspections.
What Rewiring Work Involves
Rewiring is scoped from what is found, and good rewiring is judged partly by how little finish work it destroys.
Existing Wiring Evaluation
Wiring type, condition, grounding and past modifications assessed where accessible.
Full or Partial Replacement
Whole-home rewiring, or replacement limited to the circuits and areas that actually need it.
Circuit Redesign
Circuits laid out for how the house is used now instead of how it was used when it was built.
Grounding & Bonding
Grounding and bonding brought current as part of the wiring work.
Device Replacement
Outlets, switches and GFCI/AFCI protection updated with the new wiring.
Lighting Circuits
Lighting wiring and controls replaced or reworked with the rewiring scope.
Explore Lighting Installation →Panel Relationship
New circuits landed in equipment that can actually carry them — often a panel replacement in the same project.
Panel & Service Upgrades →Access Planning
Routing through attics, crawlspaces and open areas to limit unnecessary damage to finishes.
Permit & Inspection
Permitted, inspected work with corrections carried through to completion.
What Makes a Rewire Go Well
The two things owners care about most are disruption and sequence. Both are planning problems.
- 1First
Find out what is there
Accessible inspection of wiring type, condition and how the system has been modified over the years.
- 2Before pricing
Scope honestly
Full rewire, partial rewire or targeted repair — with the reasoning stated rather than assumed.
- 3Disruption control
Plan the access
Attic, crawlspace and open-wall routes used first; openings planned and agreed before anything is cut.
- 4Schedule
Sequence with other work
Rewiring lines up with demo and drywall, not against them.
- 5Capacity
Update the panel with it
New circuits need somewhere to land, so panel work usually belongs in the same project.
- 6Closeout
Document the result
Legible panel schedule and a record of what was replaced and what was left in place.
Not every old house needs rewiring
Plenty of older wiring is in serviceable condition, and plenty of newer work is not. Approximately 20 years of field experience is what allows an honest scope — including telling an owner the whole house does not need to come apart.
Two completed whole-home rewires — a 1920s bungalow in Normal Heights taken off its original cloth wiring, and a 1960s ranch in Del Cerro stripped back and rebuilt around a new panel.
1920s bungalow whole-home rewire
- Property / project type
- 1920s Spanish bungalow
- Electrical challenge
- Original cloth-insulated branch wiring plus decades of added-on circuits
- Scope of work
- Whole-home rewire, service and main panel upgrade, recessed lighting on dimmers, GFCI and AFCI protection to current code, exterior receptacles and lighting
- Result
- Plaster opened and patched only where required; labeled panel at final
Whole-home ranch renovation
- Property / project type
- 1960s single-story ranch on a canyon lot
- Electrical challenge
- Original branch wiring and undersized distribution throughout
- Scope of work
- Panel replacement, complete rewire, recessed LED on dimmers, kitchen appliance circuits, fan-rated boxes, deck lighting, smoke and CO coverage
- Result
- Labeled panel, tested circuits, passed final inspection
Rewiring Questions
Does my old house need to be rewired?+
Not automatically. It depends on the wiring type, its condition, how it has been modified and what you need it to support. The evaluation comes before the recommendation.
Can a house be rewired without gutting it?+
Often, largely. Attics, crawlspaces and open areas are used first, and necessary openings are planned in advance. Some finish disruption is usually unavoidable.
Can we rewire only part of the house?+
Yes. Partial replacement is common and is sometimes the honest answer.
Do we have to live somewhere else during the work?+
That depends on the scope and the sequence. It is discussed before scheduling rather than discovered mid-project.
Does rewiring include a new panel?+
Frequently, because new circuits need capacity and available spaces. It is scoped and priced explicitly rather than assumed.
Is rewiring permitted work?+
Yes. Rewiring is permitted and inspected, and J.I.C. carries it through inspection.
Wondering Whether Your Wiring Needs Replacing?
Tell us the year built, what you have noticed and whether a remodel is involved. That decides whether this is an evaluation or a project conversation.
- ✓Evaluation before recommendation
- ✓Partial replacement when that is the right answer
- ✓Access and disruption planned in advance