Estimated Read Time: 12 minutes
Worried about the cost to replace old electrical wiring in an old house? You are not alone. Older Florida homes often have brittle insulation, overloaded circuits, and panels that fail modern safety tests. In this guide, we break down price ranges, what drives your total, and how to plan a safe, code-compliant upgrade. Free estimates and financing can ease the budget pinch.
Why Older Homes Need Rewiring
Homes built before the 1980s often have wiring that cannot keep up with today’s loads. Knob-and-tube and cloth-insulated wires dry out. Aluminum branch circuits from the late 1960s and early 1970s can run hot at connections. Add modern appliances, EV chargers, and home offices, and old circuits show their age.
Safety is reason one. The National Electrical Code requires arc-fault protection in most habitable rooms (NEC 210.12) and ground-fault protection in kitchens, bathrooms, outdoors, garages, and laundry areas (NEC 210.8). Many older systems lack both. In Central Florida, lightning and frequent summer storms also raise surge risk.
A full rewire updates conductors, grounds, devices, and often the panel. You gain safer circuits, cleaner power for electronics, and capacity for upgrades like induction cooking, a tankless water heater, or an EV charger.
Typical Cost Ranges in Florida
Every home is different, but these are common ranges we see across Orlando, Kissimmee, Winter Haven, and surrounding cities:
- Small bungalow or cottage (800–1,200 sq ft): $8,000–$15,000
- Mid-size home (1,300–2,000 sq ft): $12,000–$22,000
- Larger home (2,100–3,000+ sq ft): $18,000–$35,000+
These figures assume replacement of old branch circuits, new grounded receptacles, AFCI/GFCI protection where required, device replacements, and permitting. If your project also needs a service upgrade to 200 amps, plan for an added $2,500–$5,500 depending on meter location, trenching, and utility coordination.
Finishes and access drive complexity. Homes with plaster walls, tight attics, or slab-only construction require more labor than homes with open basements or accessible crawl spaces.
What Drives Your Final Price
Several factors move your estimate up or down. Knowing these helps you plan the smartest scope.
- House size and layout
- More square footage and longer wire runs increase materials and labor.
- Complex second-floor runs, vaulted ceilings, and additions add time.
- Access and construction type
- Limited attic or crawl access and plaster walls raise labor.
- Concrete block common in Florida can restrict routing and box placement.
- Panel and service capacity
- Many older homes need a panel swap or a service upgrade to 200 amps.
- New breakers with AFCI and GFCI protection improve safety and add cost.
- Device count and lighting
- More outlets, decora-style switches, dimmers, and can lights increase materials.
- Code corrections and grounding
- Bonding and grounding upgrades are essential to pass inspection.
- Optional upgrades
- Whole-home surge protection, EV charger circuits, and smart switches are easier during a rewire.
- Permits and inspections
- Jurisdictions like Orange, Polk, and Osceola Counties require permits and staged inspections. Permit fees vary by city and scope.
Signs Your Wiring Needs Attention Now
A proactive inspection can prevent emergencies. Watch for these red flags:
- Frequently tripping breakers or warm breaker faces
- Two-prong, ungrounded outlets throughout the home
- Aluminum branch wiring from 1965–1973
- Cloth-insulated or brittle wiring, or visible knob-and-tube
- Flickering lights or discolored outlet covers
- Lack of GFCI in kitchens, baths, laundry, and outdoors
If you notice any of these, schedule a licensed electrician to evaluate. In our area, humidity and heat accelerate insulation breakdown, and storms magnify surge damage risk.
What a Whole-Home Rewire Includes
A quality rewire is a coordinated project, not just pulling new cable. Expect a clear plan and documented steps.
- Electrical audit and load calculation
- We map all existing circuits, note hazards, and right-size the panel and breakers.
- Permit and inspection roadmap
- We pull permits and align rough-in and final inspections with your city or county.
- Branch circuit replacement
- New copper conductors, properly sized to loads, with dedicated circuits for appliances.
- Grounding and bonding upgrades
- Bring the system to current code for safety and surge performance.
- AFCI and GFCI protection
- Arc-fault protection in living spaces and ground-fault protection in wet areas.
- Device modernization
- New tamper-resistant receptacles, decora switches, and labeled breakers.
- Optional packages
- Whole-home surge protector, EV charger circuit, LED and smart lighting, outdoor security lighting, and smoke/CO upgrades.
We finish with a walkthrough, breaker directory, and warranty documents.
Timeline: How Long Rewiring Takes
- Discovery and estimate: 1–3 days
- Permitting: 3–10 business days depending on jurisdiction
- Rough-in work: 3–7 days for small to mid homes, 1–2 weeks for large homes
- Inspection windows: 1–3 days per inspection
- Trim-out and testing: 1–3 days
You can often live at home during the project. We stage work to keep essential circuits online where possible and use clean routing techniques to minimize patching.
Budgeting Tactics That Save Money
You can control costs without cutting safety.
- Bundle upgrades
- Pair surge protection and an EV circuit with the rewire to avoid repeat visits.
- Decide device styles early
- Finalize outlet, switch, and trim choices up front to prevent change orders.
- Prioritize circuits in phases
- Tackle kitchen, bath, and laundry first to address GFCI and load issues, then move to bedrooms and living areas.
- Prep access areas
- Clear attic paths and furniture to reduce labor time.
- Use financing for larger scopes
- Spread payments across low monthly options when available.
Florida-Specific Considerations
Central Florida homes face frequent lightning. A whole-home surge protector at the panel guards your new wiring and electronics. Outdoor kitchens, lanais, and pool equipment must meet GFCI and bonding rules. Older block homes may need careful surface raceway or selective fishing to preserve finishes. Our team works daily in Orlando, Kissimmee, Winter Haven, Lakeland, and more, so we know the local inspectors and utility processes.
Hard facts to note:
- The Consumer Product Safety Commission recognizes approved aluminum wiring repair methods, including COPALUM and AlumiConn connectors, when a full rewire is not immediate.
- NEC 210.12 requires AFCI protection in most habitable rooms to mitigate arcing faults that can cause fires. Many pre-1999 homes lack this protection.
Panel Upgrades and When You Need One
A rewire is the right time to evaluate your panel. Signs you need a new panel include rusted enclosures, obsolete brands with known breaker issues, limited spaces, or frequent nuisance trips. If you add high-demand loads like an EV charger, induction range, or spa, a 200-amp service may be sensible. Combining panel work with branch wiring keeps labor efficient and helps your project pass inspection the first time.
How We Price Your Rewire Estimate
We provide a line-item scope with transparent labor and material allowances. You will see:
- Circuit counts and destinations
- Panel or service upgrade items
- Device quantities and styles
- AFCI and GFCI protection details
- Optional add-ons priced separately
You also get a written timeline, permit plan, and inspection checkpoints. We offer free estimates for new systems and flexible financing to help you get critical safety work done now.
Related Upgrades That Pair Well With Rewiring
During a rewire, consider these value-add services to future-proof your home:
- Whole-home surge protector to protect from Florida storms
- Dedicated EV charging circuit sized to your vehicle
- LED and smart switches for energy savings and control
- Outdoor and security lighting for safety and curb appeal
- Smoke and CO detectors with sealed 10-year batteries
- GFCI/AFCI updates across wet and habitable areas
Our electricians handle outlets, switches, dimmers, indoor and outdoor lighting, EV charger installation, and surge protection, so you avoid managing multiple contractors.
What To Expect On Installation Days
- Daily check-ins and status updates so you know which rooms we are working on
- Dust control, floor protection, and cleanup at day’s end
- Labeled circuits and a clear plan for any brief outages
- A respectful crew that treats your home like their own
We bring fully stocked vehicles to limit trips. Same-day support and 24/7 emergency service mean you are never left waiting if something urgent comes up.
Maintenance After the Rewire
Once your system is modernized, a maintenance agreement keeps it that way. With Del-Air’s Maintenance Agreement Plan, you get priority scheduling, discounts, and regular checkups that help prevent costly breakdowns. We can include periodic electrical safety inspections to confirm protective devices are working and connections remain tight.
Special Offer
Free Estimate: Whole-Home Rewiring. Request your no-obligation quote and code-compliant plan. Call (407) 710-2048 or visit https://www.delair.com/south-orlando/ before 2026-08-05 to claim your free estimate. Financing options available for qualified homeowners.
What Homeowners Are Saying
"I just have AC/Heat wiring replaced and run to the attic by DelAir AC technician Roberto Lyva. He did a great job and I am very with the quality of work he did."
–Del-Air Customer, Orlando
"Del-Air was fantastic! Big job for big house! Very knowledgeable and supportive of our needs. Keep up the great work! Couldn't be happier with your services."
–Del-Air Customer, Kissimmee
"We have been using Del Air for our AC needs and have been very happy with the service we have received. So when we needed some electrical work done, it made sense to call a company that we know. We were not disappointed. Best decision we could have made."
–Del-Air Customer, Winter Haven
"Great service from Del-Air. On time, provided updates for the process, and was very pleasant to talk with. They made several suggestions for system improvements, but no hard sell. Not my first call to Del-Air and definitely won't be my last."
–Del-Air Customer, Lakeland
Frequently Asked Questions
How much does it cost to rewire a 1,500 sq ft home?
Most Florida homes around 1,500 sq ft land between $12,000 and $20,000. Access, panel upgrades, device choices, and local permit fees push costs up or down.
Do I need a panel upgrade to 200 amps?
Not always. If you plan for EV charging, induction cooking, or a spa, a 200-amp service often makes sense. We confirm with a load calculation before recommending it.
Can I live in my house during a rewire?
Usually yes. We stage circuits so essential areas stay powered. Expect short planned outages, daily cleanup, and clear communication on room access.
How long does a whole-home rewire take?
Small to mid homes take roughly one to two weeks after permitting. Larger homes or complex layouts can require two to three weeks, including inspections.
Is aluminum wiring always dangerous?
Aluminum branch wiring needs special attention at connections. The CPSC recognizes repair methods like COPALUM or AlumiConn when a full rewire is not immediate.
Conclusion
Replacing old wiring is an investment in safety, reliability, and future capacity. If you are pricing the cost to replace old electrical wiring in an old house in Orlando, Kissimmee, Winter Haven, or nearby, start with a code-focused evaluation and a clear scope. Del-Air provides free estimates, transparent pricing, and financing to fit your plan.
Ready to Get Your Free Estimate?
Call (407) 710-2048 or visit https://www.delair.com/south-orlando/ to schedule your whole-home rewiring evaluation. Mention our Free Estimate offer for new systems before 2026-08-05. Get a safer home, modern protection, and room to grow your electrical needs today.
Since 1983, Del-Air Heating, Air Conditioning, Plumbing and Electrical has served Florida homeowners with licensed, bonded, and insured technicians. We deliver same-day service, 24/7 emergency support, and upfront pricing. We are BBB-accredited with an A+ rating and operate a large fleet to reach you fast. Choose us for whole-home rewiring, panel upgrades, EV charger circuits, and surge protection. One trusted team for electrical, HVAC, and plumbing.