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TRUSTED BY HERCULES, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon586
    Verified electrical services reviews

Find Electricians in Hercules

Avatar for Emrom Electric, Inc.
Emrom Electric, Inc.
4.7(
80
)

Serving Hercules, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"We were very lucky to find Emrom Electric and Emmanuel Mbisse. Our 100+ year old house in Berkeley needed complete rewiring after a short circuit and inspection. Emrom was able to start this huge job within a week or two, saving us a lot of money in tenants' dislocation expenses. Emmanuel was a pleasure to work with, providing explanations and giving us options along the way. He got the job done faster than we had hoped in a good, professional manner for a fair price. We would recommend Emrom to anyone and will definitely be contacting them for any future electrical work."
 High Voltage systems
 Control system
 High Voltage controls
 Control system
 Electrical main panel upgrade

+9

Response time20 mins
Response rate100%
Recommended by100%of homeowners
Avatar for CA Electrical Group 24/7
CA Electrical Group 24/7
4.7(
61
)

Serving Hercules, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"Excellent service. I needed to upgrade my electric panel, Ben did an excellent job very professional. Installing switches, circuit breaker panels, relays, and other electrical control and distribution equipment was the right call. I look at several electricians with reasonable prices and CA Electrical Group was definitely the right call. I will highly recommend CA Electrical Group to all my friends. What was important to me was his daily commitment to start and finish the job the dates we agreed on."
apartment rewire
main service panel upgrade multi meters
tesla
new 3 phase commercial electrical panel
solar ready main panel

+123

Response time5 hrs
4 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Mr Electric of Concord CA
Mr Electric of Concord CA
5.0(
17
)

Serving Hercules, CA and surrounding areas

Approved

In business since 1994

Free estimates

Credit card accepted

"I am giving Mr. Electric the highest complement I can as a customer - I will definitely use them again when I need electrical work done!"
Response time7 hrs
114 neighbors recently requested a quote
Recommended by80%of homeowners
Smoov Energy & Electric, Inc.
5.0(
8
)

Serving Hercules, CA and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"Ricky was very responsive and easy to talk to. He was very knowledgeable in setting up electrical wiring for charging my electric car. I highly recommend him for any electric vehicle wiring or installing nema 14-50s or Tesla chargers in your garage. He was very detail oriented and I would recommend or hire him again for any future electrical work."
Response time10 hrs
Response rate91%
2 neighbors recently requested a quote
Avatar for IC Electric
IC Electric
4.8(
18
)

Serving Hercules, CA and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Customers say: True professional

"Ivan and Edgar were amazing! I originally brought them on board for an EV charging outlet to be installed in my detached garage. After a quick assessment, we learned I would need to have a new electrical panel installed and a new line run under the home to the garage. The work was done quickly and flawlessly. Their price was also very competitive to many of the quotes I was provided from other teams. On top of that, Ivan and Edgar were extremely professional and friendly. I plan to also hire them for a recessed lighting project in my living room, which I learned is their specialty. Thank you IC Electric for an amazing instal!"
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+3

Response time1 day
1 neighbors recently requested a quote
Recommended by88%of homeowners
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Electrical questions, answered by experts

Switching the hot and neutral wires in an outlet or receptacle, a condition known as reverse polarity, is dangerous. While the outlet will still function and provide power, it creates a significant electrical shock hazard because anything plugged into it will remain electrified even when switched off. If you touch a conductive part of the appliance, such as the metal components of a toaster, you could receive an electric shock.

Using a wire stripper/cutter, strip about 1/2 inch to 1 inch of sheathing from electric wires, depending on the application. A self-adjusting wire stripper/cutter works best, but a standard wire stripper/cutter with holes for different gauges of wire works as well to cut and strip away the sheath without damaging the copper wire inside.

Yes, you can get shocked while using a multimeter if:

  • You touch the metal tip while testing a live current.

  • The meter isn’t properly rated for the voltage.

  • The meter picks up on transient voltage that’s above the range you’ve set.

  • The meter has defective parts.

You can prevent shock and personal injury by using a multimeter properly and maintaining your device. 

If you’re unsure how to use a multimeter or want help with your project, contact a local electrician to get the job done.

The standard copper wire gauge to use with any 30-amp circuit is a 10-gauge wire. The National Electric Code specifies a 10-gauge wire with appliances like water heaters running on 30 amps. If you try to use a smaller gauge wire, such as a 12 gauge, with a 30-amp breaker, you run the risk of the wire overheating and melting or causing a fire. Because of the safety hazards, the gauge of the wire is not an area to try to cut costs when connecting a 30-amp breaker to a water heater.

A ceiling light will usually have two or three wires: black, white, and sometimes green. Black wires are positive, or hot, while white wires are negative, or neutral. The green wire is the grounding wire. 

When you’re wiring the light, connect black to black, white to white, and green to the grounding screw.

The Hercules, CA homeowners’ guide to electrical services

From average costs to expert advice, get all the answers you need to get your job done.