How To Tell If Your Home Needs Complete Electrical Rewiring

What to Know

• Key warning signs that your home needs rewiring include burning smells, flickering lights, and frequent breaker trips.
• Older homes with knob-and-tube wiring, aluminum wiring, or undersized circuits are at the greatest risk and usually require full rewiring. 
• Whole-home rewiring costs depend on your home’s size and electrical panel. 
• A wiring inspection from a licensed electrician is a safe way to determine if your home needs rewiring.

Why Electrical Wiring Problems Should Never Be Ignored

Your home’s electrical wiring powers everything from your HVAC system to your coffee machine, so ignoring wiring problems can put your household at risk. It’s important to know the signs your home needs rewiring because faulty electrical wiring is one of the leading causes of residential house fires in the United States. Beyond fire risks, degraded wiring can damage expensive appliances and electronics through inconsistent power delivery, arc faults, and voltage fluctuations that cause breaker trips. 

At Comfort Bros, we help homeowners across San Diego County identify electrical problems before they become emergencies. Learn about home electrical safety warning signs, what to expect from a rewiring job, and how to get started with one of our professional electrical inspections.

Warning Signs Your Home May Need Electrical Rewiring

There are many whole-house rewiring warning signs that homeowners need to be aware of, including:

• Flickering, surging, or dimming lights.
• Frequent breaker trips, especially on the same circuit. 
• Burning smells near outlets, the electrical panel, or switches. 
• Discoloration from burn marks on outlets and switches.
• Warm outlets or switches.
• Frequent sparking when plugging or unplugging appliances. 
• Shocks or tingling sensations when plugging or unplugging an appliance.
• Using two-prong (ungrounded) outlets throughout the home.
• Using a fuse box instead of a modern electrical panel.

The danger of faulty wiring is that it’s hidden inside walls, so problems can develop over time. Some warning signs don’t necessarily mean your house should be rewired, but they do indicate an electrical disturbance in your system that needs to be addressed by a professional electrician. 

How Long Does Electrical Wiring Last in a Home?

Most modern electrical wiring, when properly installed with quality insulation, lasts 50 to 70 years or more. However, a wiring system’s lifespan depends on the type of wiring used, the quality of the original installation, environmental conditions, and the electrical load the system has handled over the years.

There are also some specific old house electrical wiring problems. Older knob-and-tube wiring, which was a standard before the 1940s, is no longer safe by modern electrical standards. It doesn’t contain a ground wire and can’t support modern load capacity. If your home still has this system, you likely need knob-and-tube wiring replacement services.

Similarly, aluminum wiring problems are common in homes built in the 1960s or 70s. Aluminum wiring expands and contracts with temperature fluctuations, gradually loosening connections at outlets and switches and creating serious fire hazard points over time.

Are Older Homes More Likely To Need Rewiring?

Homes built before the 1980s were designed for a fraction of the electrical demand that modern households require. Think about all of the modern appliances you use today, such as multiple televisions, smart home devices, EV chargers, high-efficiency HVAC systems, and kitchen appliances. None of these was factored into the original electrical design of older homes. 

San Diego, in particular, has many older neighborhoods, such as La Mesa and El Cajon, with homes built in the 1950s. Many still have their original wiring, and adding a modern appliance can easily overload the undersized circuit, leading to electrical wiring problems in the house.

What Happens During a Whole Home Rewiring Project?

A whole-home rewiring is a significant project, but our skilled home rewiring electricians will minimize disruption and get the job done to modern standards. Here’s what to expect from the process:

• Step one: Our electrical rewiring contractors near you perform a thorough inspection of your existing wiring, panel, outlets, and load demands, and then provide a detailed written estimate.
• Step two: Your electrician pulls the necessary permits and plans the new circuit layout to meet current National Electrical Code (NEC) standards.
• Step three: If electricians need access to the inside of your home’s walls, minimally invasive techniques are used wherever possible, though some drywall repair may be necessary. New copper wiring, outlets, switches, and a new or upgraded panel will be installed.
• Step four: A county or city electrical inspector verifies that all work meets code before the project is officially complete.
• Step five: Any wall openings made during the process are patched and finished.

Typically, a whole-home rewiring job takes a few days, depending on your home’s size and the amount of work required. 

How Much Does Whole Home Rewiring Cost?

The cost of whole-home rewiring depends on many factors, the biggest two being your home’s size and the amount of work required. Smaller homes under 1,500 square feet will be less expensive at around $8,000, whereas larger homes (2,000 square feet or larger) may start at $15,000. 

The cost typically includes all new wiring, outlets, switches, and panel upgrades. Additional costs for specialty circuits, such as EV chargers, hot tubs, or dedicated home office circuits, will also be calculated. 

Financing Options for Electrical Rewiring

Comfort Bros has partnered with Service Finance to offer flexible payment plans for electrical rewiring in older and new homes. Customers can easily apply online, have an electrician handle the necessary electrical work, and set up payment plans that fit their schedule and budget. 

Why Homeowners Trust Comfort Bros for Whole-Home Rewiring

Comfort Bros has built its reputation on honest assessments, quality electrical workmanship, and putting the safety of San Diego County customers first. When you choose us, you get:

• Licensed electricians for rewiring with extensive residential experience.
• Transparent, upfront pricing with no hidden fees, before the job begins.
• Exceptional customer service.
• Full permit and inspection management, meaning we handle all the necessary paperwork.
• Special deals for electrical work.
• A satisfaction guarantee on all labor and materials used.

Service Areas We Serve

We are proud to offer whole-home rewiring services for San Diego communities, such as:

• El Cajon, CA – 92019, 92020, 92021
• La Mesa, CA – 91941, 91942
• Santee, CA – 92071
• Spring Valley, CA – 91977, 91978
• Lakeside, CA – 92040
• San Diego, CA – 92119, 92120, 92124

Not sure if we serve your area? Give us a call — we’re always expanding our coverage across the greater San Diego region.

Schedule a Professional Electrical Wiring Inspection With Comfort Bros

If you’re experiencing any of the warning signs that your house needs rewiring, it’s important to schedule a professional electrical inspection. Our licensed technicians will thoroughly assess your electrical system, explain exactly what we find, and provide our best recommendation. Contact us today to schedule a wiring inspection. 

Frequently Asked Questions 

Why do my outlets feel warm or hot?

If your outlets feel warm or hot, it means you have an overloaded circuit, faulty wiring, or electrical resistance occurring. All three are highly dangerous and can lead to electrical fires, so call Comfort Bros right away. 

What does a burning smell from an outlet mean?

A burning smell from an outlet usually indicates serious arcing (a jump in current), which generates intense heat and burns the surrounding wire insulation. This is a serious problem that can cause electrical fires.

Are two-prong outlets a safety risk?

Yes, two-prong outlets are a safety risk because they lack a third grounding wire that protects from electrical surges. An electrician can replace them with three-prong or GFCI (Ground Fault Circuit Interrupter) outlets in areas near water.

Meet the Author

Nicholas Gildark

Nicholas Gildark is a San Diego native who comes from a tight knit family and enjoys spending time with them. Nicholas is engaged to his beautiful fiance Allison Velasquez. The two of them recently purchased a home.