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Replacing old wiring can feel overwhelming, especially in a charming older home. If you are researching the cost to replace old electrical wiring in an old house, you want clear numbers, timelines, and a plan that respects your walls and budget. In the Philadelphia area, we rewire homes every week, from 1920s rowhouses to 1950s capes, and we know what it really takes to make them safe, code compliant, and future ready.
What Drives the Cost of Rewiring an Old House
Whole‑home rewiring is a collection of tasks that add up. The biggest cost drivers are home size and layout, accessibility, and the extent of code upgrades required. A 1,400 square foot Philadelphia rowhome with plaster and lath walls is very different from a 3,000 square foot suburban colonial with open attic space.
Expect higher costs when access is tight, when plaster repair is extensive, or when the system has multiple legacy issues such as knob‑and‑tube, aluminum branch circuits, or ungrounded receptacles. Older homes also benefit from panel upgrades and additional dedicated circuits for modern appliances and EV charging.
Labor is the largest line item because safe rewiring requires licensed electricians who can fish new cable without unnecessary demolition, label every run, and test each circuit. Materials include copper wiring, AFCI and GFCI protection, modern breakers, boxes, staples, and protective plates. Permits and inspections ensure your new system is legal and insurable.
In our market, drywall and insulation restoration can be included to return the home to a finished state. This reduces the hassle of hiring multiple contractors and often lowers the total project time.
Typical Price Ranges in Philadelphia
Based on recent projects and the complexity of older housing stock, whole‑home rewiring usually ranges from 20,000 to 50,000 dollars, with larger or more complex homes exceeding that. We have also seen projects start at around 25,000 dollars depending on specific needs.
Smaller two‑story rowhomes with decent access and no panel change often fall on the lower end. Mid‑size homes that need more circuits, partial plaster repair, and a modest panel upgrade sit in the middle. Larger homes, complicated layouts, or heavy restoration needs move toward the top of the range.
Every home is unique. During a consultation, we map your circuits, identify hazards, review appliance loads, and confirm code requirements. You receive an upfront, itemized quote before work begins. That transparency prevents surprise costs and helps you decide on optional upgrades like surge protection or EV charging.
Project Timeline, Disruption, and How We Minimize It
A typical whole‑home rewire takes one to two weeks depending on size and complexity. Portions of the home will be without power at times, but careful staging keeps essential areas live whenever possible. For some homes we can provide temporary power solutions to maintain lights or critical appliances.
Daily cleanup matters. We protect floors, isolate dust, and vacuum at day’s end. In plaster homes, we plan pulls to minimize openings, then repair and blend patches. We schedule inspections quickly to avoid downtime. Final testing confirms every switch, outlet, and safety device works as intended.
If you work from home, we coordinate power windows so your workspace stays functional. If you have pets, we plan crew access routes and keep doors secured. Our goal is to make a disruptive project feel surprisingly manageable.
Permits, Inspection, and Code Upgrades You Should Expect
Whole‑home rewiring in Philadelphia requires permits and inspections. We handle the paperwork, coordinate with the city, and meet inspectors on site. Expect updates that align with current electrical code, including AFCI protection for many living areas and GFCI protection in kitchens, bathrooms, laundry spaces, garages, and outdoors.
Modern code also improves bonding and grounding, outlet spacing, and smoke and CO detector placement. We label circuits clearly for future service and home resale value. Proper permits and passed inspections protect your insurance coverage and provide proof of compliant work.
JDV Electric maintains an A+ rating with the BBB and invests in ongoing training, so your project stays aligned with evolving safety standards and manufacturer specifications.
Old‑House Scenarios: Knob‑and‑Tube, Aluminum, and Ungrounded Circuits
Pre‑1940 homes in our region often contain knob‑and‑tube wiring. It cannot handle modern loads and lacks grounding. Whenever we find active knob‑and‑tube, we recommend full replacement and new grounded circuits. Homes from the 1960s and 1970s may have aluminum branch circuits that need mitigation or replacement due to connection heating risks.
Outlets without a ground are common in older renovations. We correct this by installing new grounded circuits to each room. We also replace brittle, cloth‑insulated conductors and corroded boxes. These hazard corrections are central to a safe, modern electrical system and often influence both cost and scope.
During assessment, we scan for hidden junctions and outdated splices. Correcting those now prevents nuisance tripping, flickering, and premature device failure later.
Panel Upgrades, Dedicated Circuits, and Capacity Planning
Many older homes still run on undersized panels with limited breaker spaces. Today’s homes need capacity for HVAC, kitchens with multiple small appliance circuits, laundry rooms, and technology like EV chargers and hot tubs. We assess your service size, panel condition, grounding, and surge protection.
Typical upgrades include moving from a 60 amp or 100 amp panel to 150 or 200 amps. We add dedicated 20 amp small appliance circuits in kitchens, 20 or 30 amp circuits for laundry, and 30 to 50 amp circuits for ranges, dryers, water heaters, and EV chargers. Proper circuiting prevents overheating and nuisance trips.
A whole‑house surge protector is a smart add‑on that shields electronics from utility and lightning events. It is a small cost compared to replacing appliances and computers after a surge.
How We Rewire Without Ruining Your Walls
Fishing new cable is an art, especially in plaster and lath rowhomes. We open small, strategic access points near studs or joists, use flexible bits and fish tapes, and route around obstacles like fire blocks. When ceilings provide better access, we work from above and patch with matching texture.
Our process includes removing abandoned wiring, installing modern boxes and devices, and sealing penetrations to improve energy efficiency and noise control. We replace insulation where disturbed, then repair and finish drywall so the space looks right when we leave.
Because our trucks are fully stocked, we avoid delays for parts runs. Finished quality matters as much as electrical performance, so we plan for both throughout the job.
Ways to Save Without Cutting Corners
There are smart ways to control cost while keeping safety first:
- Prioritize hazards. Replace knob‑and‑tube and aluminum branches first, then plan cosmetic or convenience upgrades after.
- Bundle work. Combine panel upgrades, dedicated circuits, and surge protection during a rewire to save on labor and permitting.
- Choose standard device finishes. Designer dimmers and smart controls add up. Use them where they matter most.
- Prepare access. Clearing storage areas, attics, and basements speeds the crew and lowers labor hours.
- Use financing. Spread payments over time so you can do the job right the first time.
We never recommend cutting safety devices like AFCI or GFCI protection, skipping permits, or leaving active obsolete wiring. Those shortcuts can void insurance and put families at risk.
Financing, Warranties, and Safety Plan Value
Large projects are easier with flexible financing. Many homeowners use low monthly payments to complete the full scope now, rather than staging risky partial work over years. We also offer a Safety and Savings Plan for 9.95 dollars per month with a 12 month minimum commitment. Benefits include no service fees, two year repair warranty, complimentary electrical inspections, and 15 percent off products and services.
Your rewire is backed by a 100 percent satisfaction guarantee. We use high quality components from proven manufacturers, and our Eaton certification supports best practices on panels and protection devices.
When to Rewire vs Partial Rewire
A full rewire is best when you have widespread hazards like knob‑and‑tube, aluminum branches, or extensive ungrounded circuits. If only one area has issues, a targeted rewire can bridge to a future full upgrade. We will be candid about risk, cost, and timing.
Consider a full scope when you plan kitchen or bath remodels, HVAC upgrades, or EV charger installation. Doing the electrical once, correctly, usually costs less than opening finished spaces again later.
If you are selling soon, a code compliant system with clear labeling and inspection records can boost buyer confidence and reduce repair credits during negotiations.
How to Choose the Right Electrician in Philly
Look for a licensed, insured contractor with great local reviews, an A+ BBB rating, and a clear permit process. Ask about ongoing training, background checks, and whether trucks are stocked for fewer delays. Confirm that the quote includes patching, insulation replacement where disturbed, labeling, and final cleanup.
Ask for specific old‑home experience in Philadelphia rowhouses. Tight basements, brick party walls, and plaster ceilings demand a crew that knows how to fish clean runs and protect finishes. Request a sample schedule, milestones, and communication plan before you sign.
JDV Electric is licensed in PA, NJ, and DE and has served the Philadelphia area since 2005. Our team completes over 100 hours of training each year and follows a transparent, permit‑first process.
Step‑by‑Step: Our Whole‑Home Rewiring Process
Our process is designed to be predictable, clean, and code compliant.
- Consultation and Quote. We walk you through options and deliver an upfront, itemized price.
- Permitting and Inspection Scheduling. We handle the red tape so your upgrade is legal and safe.
- Removal and Installation. We remove obsolete wiring and install modern, efficient systems.
- Insulation and Drywall. We replace insulation and repair drywall so your home looks right.
- Final Walkthrough and Testing. We confirm every switch, receptacle, and breaker performs perfectly.
You get a labeled panel, documented circuits, and a system ready for modern living.
Signs Your Home Needs Rewiring
Not every symptom means a full rewire, but several common signs deserve an expert evaluation:
- Frequent breaker trips or warm breakers.
- Flickering lights, especially under appliance load.
- Two prong or visibly ungrounded outlets.
- Scorching or discoloration at outlets or switches.
- Knob‑and‑tube or aluminum branch wiring present.
- Older homes that have not had an electrical update in 25 to 40 years.
If you notice any of these, schedule an inspection. We will explain findings in plain language and give you safe, cost effective options.
Real‑World Examples From Our Market
We recently completed a three day partial rewire on a 100 year old home that eliminated knob‑and‑tube in the living spaces, added recessed lighting on dimmers, and restored walls each day. Another project replaced aluminum branch circuits, upgraded the panel, and corrected multiple overheated devices. Financing made the safety work possible without delay.
In older Philadelphia neighborhoods, we also prepare homes for EV chargers with new 50 amp circuits and load calculations. Many owners add whole‑house surge protection during the rewire to protect electronics and HVAC equipment.
Our approach is to do it once, do it right, and leave your home cleaner and safer than we found it.
What Homeowners Are Saying
"JDV rewired my whole house this past summer. I have never been more impressed with any company I've worked with. John and John were very professional and friendly, and I enjoyed having them around! Their work was inspected every couple of days, and now I feel safe and secure knowing my home is up to code. I couldn't recommend JDV more. I would leave ten stars if I could :)"
–Leslie D., Whole‑Home Rewiring
"Amazing job! A long 13ish days but a full rewire of a 1930 2 story house is no small job. Piro, Ryan, and Anthony were friendly, professional, and great at accommodating us and our dogs. We have found our electricians for future remodeling projects."
–Jessica I., Whole‑Home Rewiring
"First rate technical expertise and customer service. ... They discovered that the 50 year old copper/aluminum clad wiring in my house had multiple traces of burning at the outlets and switches. ... They replaced every unit in the house and rewired/upgraded the circuit board panel. Financing with GoodLeap was quick and easy and well worth it knowing the house is now safe. If you have symptoms of an older home like I did, highly recommend you call JDV and have them take care of your house."
–Joseph D., Whole‑Home Rewiring
"Suddenly needed somewhat emergency rewiring, wasnt the best news to find out but these guys, led by John, made the process so easy to schedule and get the job done while being professional and actually really neat considering they had to chop up the walls a little. Couldnt recommend them more"
–Ed S., Whole‑Home Rewiring
Frequently Asked Questions
How much does it cost to replace old wiring in an older Philadelphia home?
Most full rewires range from 20,000 to 50,000 dollars. Larger homes or complex conditions can exceed that. Size, access, panel upgrades, and wall restoration affect price.
How long will my home be without power during a rewire?
Expect a one to two week project with scheduled outages by area. We work efficiently to minimize disruption and can provide temporary power solutions in some cases.
Do I need permits and inspections for a whole‑home rewire?
Yes. We handle permits and coordinate inspections. Documentation protects your safety, insurance, and resale value, and confirms code compliance.
Will you repair the walls after fishing new wiring?
Yes. Our scope includes replacing insulation where disturbed and repairing drywall or plaster patches so your home looks right when we finish.
Can I finance a whole‑home rewiring project?
Yes. Flexible financing helps spread the investment over time. Many homeowners prefer this to delaying critical safety work.
Conclusion
Replacing outdated wiring in an older home is one of the smartest safety investments you can make. If you are researching the cost to replace old electrical wiring in an old house in the Philadelphia area, we are ready to help with clear pricing, permits, careful wall repair, and proven results.
Call or Schedule Now
Get a safe, modern electrical system without the stress. Call JDV Electric at (484) 462-7228 or schedule at https://www.jdvelectric.com/. Our licensed, background‑checked team delivers upfront pricing, a 100% satisfaction guarantee, and financing options to fit your budget.
Call JDV Electric today at (484) 462-7228 or book online at https://www.jdvelectric.com/ for a code‑compliant rewire, clean wall repair, and clear upfront pricing.
About JDV Electric
Family owned since 2005, JDV Electric serves the Philadelphia area with licensed, insured, and background‑checked electricians. We carry an A+ BBB rating, provide upfront pricing, and back work with a 100% satisfaction guarantee. Our team completes 100+ hours of training each year and arrives in fully stocked vehicles to finish jobs efficiently. Licensed in PA (PAHIC 007239), NJ (34EI01626100), and DE (T1-0005511), and Eaton‑certified for quality components.