The answer to 'how much is electrical wiring upgrade' is that the cost can vary significantly depending on several factors. Typically, a full electrical wiring upgrade for a home can range from $3,000 to $15,000 or more. The exact cost will depend on the size of your home, the age and condition of the existing wiring, the materials and labor required, and whether any additional electrical work is needed, such as upgrading the service panel or adding new circuits.
It's essential to get quotes from licensed and experienced electrical contractors in your local area, as they will be able to assess your specific needs and provide an accurate estimate. The cost can also be influenced by the complexity of the job, the accessibility of the wiring, and any necessary permits or inspections.