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4.6

(977 reviews)

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Verified Reviews for Electrical Service pros in Ontario, CA

*The Angi rating for Electrical Service companies in Ontario, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Electrical Service needs.

*The HomeAdvisor rating for Electrical Service companies in Ontario, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Electrical Service needs.

Last update on March 11, 2026

Find Electricians in Ontario

Avatar for Garafano Electric, Inc.
Garafano Electric, Inc.
4.8(
188
)

Serving Ontario, CA and surrounding areas

Approved

In business since 1968

Free estimates

Warranties offered

"Garafano Electric has being taking care of all the electrical needs and upgrades in our 90 plus year old house for a few years now. They always do A+ work. We're currently in the middle of some home renovations and they've been willing and able to work with our erratic schedule. Honest, dependable, and great at what they do. Can't recommend them high enough!"
Response time3 days
3 neighbors recently requested a quote
Recommended by98%of homeowners
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P S Electrical
4.4(
170
)

Serving Ontario, CA and surrounding areas

Approved

In business since 2003

Free estimates

Warranties offered

"Had an electrician out to give me an estimate on replacing my electrical panel. Decided against replacing it because that wouldn't have solved my issue. My house was built in the 60's so it needs all new wiring. I just had him show me which outlets were on each of the channels so that I could spread out my devices that needed a lot of power, specifically my space heaters."
Recommended by97%of homeowners
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Avatar for CJ's Electrical Company, Inc.
CJ's Electrical Company, Inc.
4.8(
61
)

Serving Ontario, CA and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"CJ's Electrical Company, Inc. completed work as agreed , some communication issue at first but Carlos took ownership and I am happy with the results and happy to recommend"
Response time1 day
1 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for Mr. Watts Electric
Mr. Watts Electric
5.0(
53
)

Serving Ontario, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Ryan was professional and his rates were very reasonable. He showed up on time and completed all work to our satisfaction. I would highly recommend him and if I need electrical work done in the future, I would hire him again."
200amp Panel Upgrade
200amp Panel Upgrade
LV2 Tesla Charger
Response time7 hrs
Response rate87%
38 neighbors recently requested a quote
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Avatar for Wilson Electric
Wilson Electric
4.5(
199
)

Serving Ontario, CA and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"The light fixture, and it was done by Wilson Electric. I just wanted to let you know that Wilson Electric did a fantastic job, they saved me a ton of of money. Erin bloom technician was great."
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+5

Response time1 day
Recommended by89%of homeowners
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Avatar for J L P ELECTRICAL SERVICES
J L P ELECTRICAL SERVICES
5.0(
37
)

Serving Ontario, CA and surrounding areas

Approved

In business since 2001

Emergency services offered

Warranties offered

"I called several electrical companies and their timeframe was about a week out I found JLP electrical services did same-day service. They were able to help me with my installation of a attic fan. These hot days definitely needed to cool my house down and he was able to finish the project in a promptly time manner. Highly recommend JLP electrical services. ⚡️⚡️⚡️⚡️⚡️⚡️⚡️⚡️"
1
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+3

Response time1 day
Response rate91%
46 neighbors recently requested a quote
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Electrical questions, answered by experts

If you’re replacing wires from an electrical meter box to the breaker box, you may also consider installing a new meter or replacing or repairing the breaker box . You can tell if the circuit breaker is bad if you’re dealing with tripping or worrisome burning smells. Both projects should also be handled safely by a licensed electrician.

Incorrectly wiring a single-pole switch results in the connected light or device not turning on or tripping the circuit breaker. Although it doesn't matter which terminal the hot wire and the load wire connect to, mixing up a circuit wire with a ground or having loose connections can prevent the switch from working. 

Grounding an electrical outlet can take as little as 30 minutes if you only need to replace the outlet or around two hours if you need to add a ground wire. However, more extensive electrical work will take longer, such as hiring an electrician to ground multiple outlets during the same service.

Yes, you can splice electrical wires together to make them longer. If you follow the proper safety protocols and match the correct colors, you can save yourself from getting a brand-new circuit and add length to your wires to get them where they need to go.

Multiple wire sizes are used for residential electrical purposes. While the most common sizes used in homes are 14 and 12 gauge, some appliances, such as stoves, electric water heaters, central air units, etc., may use larger gauge wire to accommodate their larger amperage. Typically, larger appliances require 10-, 8-, or 6-gauge wires.

The Ontario, CA homeowners’ guide to electrical services

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

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