Full Service Electrical & Solar Contractor Serving the East Bay Area. 24 Hour Emergency Service Available.

Diamond Certified Company

(925) 421-0411

Solar Design Center & Showroom
2250 Commerce Ave., Suite C
Concord, CA 94520 (map)

I want to install 3-prong receptacles in a 2-prong receptacles home... what do I do?

Two-prong outlets are not just inconvenient; they also pose a real safety hazard. The third prong on a plug is designed to give a fault path in the event of a short in the wire or device that is connected shorts out. Without a ground path, electrical shock or fire could occur. A metal light fixture, for example, could become energized on its exterior, making it dangerous to touch, and because there is no grounding, the breaker will not trip - a potentially deadly scenario.

The solution, however, is not just a quick replacement from a two-prong to a three prong receptacle. First off, if the wiring system is not properly grounded, then this “fix” is an illegal one. The simplest way to figure out if your wiring is properly grounded is to purchase a three-prong plug tester that will show "open ground."  

In some cases, a home's wiring is grounded, yet three prong receptacles were not installed during construction because it was cheaper to install two-pronged receptacles. In other cases, there is no wire or proper grounding path. Improperly grounded wiring is not uncommon in houses built more than 50 or 60 years ago.

Most likely, your old two prong receptacle is so loose that plugs fall out of it, or it is brittle discolored and cracking - if any of these situations exist, the time to replace them is now. If you have discovered that you do not have the properly required grounding, GFI’s are the solution to protect the circuit.  GFI’s can be used with breakers or receptacles. It is possible for a single GFI outlet to protect an entire circuit, but it is crucial that you hire an electrician to determine your exact circuit paths.

The reason GFI receptacles are both legal and advised is that they can detect trace levels of leakage current, and open the circuit even faster than the breaker. This reason is why GFI’s are required near sources of water (like the bathroom and kitchen), or outdoors.

An electrician will determine for you whether you can install standard plugs, or if you need a GFI. If you do need a GFI, your electrician will know how to wire it correctly, and in the right location.

Return to Blog

Latest Reviews

Got Watts installed my Tesla Charging port, and they were on time and did a fast and clean job.

David Ingersoll
April 16, 2019

Jason Ruffin
April 13, 2019

Vanessa Binning
April 8, 2019

Michael Wilson
April 8, 2019

john stancik
April 8, 2019

Request Service

NEW! Schedule an appointment to FaceTime one of our technicians. We may be able to give you a quote without ever entering your home!

* indicates required field.

Latest from Our Blog

Do Solar Panels Help Property Values?

Do Solar Panels Help Property Values?

Monday, March 25, 2019 9:20am

What do do in case of an electrical fire.

What do do in case of an electrical fire.

Tuesday, February 19, 2019 10:48am

Got Watts Electric & Solar

Got Watts Electric and Solar is a residential and commercial electrical contractor serving Pleasant Hill, Concord, Walnut Creek, Lafayette, Orinda, Moraga and the rest of the East Bay area of California.

(925) 421-0411

  • mastercard
  • visa
  • discover
  • amex
  • cash
  • check

Normal Business Hours:
Monday-Friday 9am to 5pm
Saturday & Sunday By appointment only
24 Hour Emergency Service available