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Find Electrical wiring or panel upgrade pros in Danville

Avatar for Single Line Electric
Single Line Electric
5.0(
49
)

Serving Danville, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Single Line Electric just finished a complete rewire of our home, and we could not be more satisfied with their work! I know very little about the electrical field, and Nery patiently explained the project to me in laymanâ s terms. He provided options so I never felt pressured into one choice, and his quote was fair. Nery and his crew are professionals through and through. They treated our home with care, and when they finished the job it was as if no one was ever here. Except for the fact that all of our lights and outlets work correctly, and we can sleep easy knowing our home wonâ t burn down because of old faulty wiring in the walls! Our home is old and big, so we didnâ t trust this massive project to just anyone. We are so happy we found Single Line Electric, and we would whole heartedly recommend them to anyone for any size project!"
Main Panel Upgrade
Main Panel Upgrade
Main Panel Upgrade
Response time1 day
Response rate87%
22 neighbors recently requested a quote
Avatar for CA Electrical Group 24/7
CA Electrical Group 24/7
4.7(
61
)

Serving Danville, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"I've contacted Ben multiple times for projects (wiring/setting up doorbell camera, fixing outlets, wiring/installing florescent lights in garage) at our home. He always responds quickly and is flexible with setting up appointments. Exceptionally neat and clean work! Very professional and a pleasure to talk to. Ben will continue to be my contact for anything electrical!"
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 Hamilton Electric
Hamilton Electric
4.9(
67
)

Serving Danville, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Had to have additional circuits added to my panel, some wiring, plugs and GFCI outlet. Hamilton Electric did a professional job quickly and efficiently. Brian explained everything along the way and made sure I was satisfied. He is honest and fair, old school, the way service used to be. Price was great, too."
Charge controller
Charge controller
Charge controller
Charge controller
Charge controller

+41

Response time4 hrs
Response rate99%
4 neighbors recently requested a quote
Avatar for Emrom Electric, Inc.
Emrom Electric, Inc.
4.7(
80
)

Serving Danville, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Don't hesitate to hire Emrom Electric however complicated a job you are considering. There is no construction or design problem too difficult or detailed for Emrom to solve! We are more than happy with the new mast, wires, fixtures and switches installed by Emrom with economy and skill. The Emrom people cheerfully worked under the house and in our tiny attic to accomplish some very challenging parts of the job. The whole project was truly an upgrade in every sense of the word. Our house is over 75 years old and now has the safety and comfort of a new electrical system without in any way diminishing its charm. Emrom completed the job with great care and a minimum of disruption. We highly recommend their 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 Line Load Electric
Line Load Electric
5.0(
21
)

Serving Danville, CA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Had a loose wire somewhere in the house that was causing flickering lights. Billy found it and fixed the problem. Left the house nice and clean."
Line load electric
Line load electric
Line load electric
Full Kitchen Remodel
Full Kitchen Remodel

+7

Response time5 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for Horizon Electric Group LLC
Horizon Electric Group LLC
5.0(
10
)

Serving Danville, CA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"They did a solid job upgrading my main electrical panel. Dave from Horizon was professional, showed up on time, and explained everything clearly before starting. The new panel looks clean and professional, and the whole process went smoothly with minimal disruption. I feel much safer now with updated breakers and better capacity. Would definitely recommend Dave and Horizon to anyone needing electrical work done right."
Flush Mount MPU
Michel Gaines_BE138680
Michel Gaines_BE138680
A surface mount mpu I did in San Jose
A surface mount mpu I did in San Jose

+1

5 neighbors recently requested a quote
Avatar for Golden Bay Electric
Golden Bay Electric
4.9(
29
)

Serving Danville, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"They were prompt. Efficient.knowledgeable, helpful.professional and friendly. It was a pleasure to wirk with Edgar and they did a wonderful job. When he cane for the estimate he educated me on how to choose my ceiling fan and emwhat was involved. Made the whole process easy. They will be my electricians for all my future electrical work. Five stars!"
Response time2 days
Recommended by92%of homeowners
Avatar for JC Electric
JC Electric
5.0(
7
)

Serving Danville, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Warranties offered

"I appreciate the high level of professionalism of JC Electric from the beginning to end. The level of detail he provided me allowed me to feel comfortable and confident with this project. The work was great! JC Electric was fast, efficient and the city inspector was impressed by the quality of work. Jaime from JC Electric rewired 3 of my bedrooms and upgraded my panel to 200 amps."
Federal Pacific Panel
Federal Pacific Panel
Discoloration
Demoed out
100a 20/40 Space Sub Panel Replacement

+1

Response time1 day
15 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for IC Electric
IC Electric
4.8(
18
)

Serving Danville, CA and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Customers say: True professional

"I am extremely happy to hire IC Electric to complete the work for replacing main breaker (100 amp) and installing new dedicated circuit for refrigerator. Work is completed timely and professionally. Ivan is very helpful in explianing all the details of work, that help me to get confidience with his capacity and expertise for doing the job. Hignly recommend to hiring him for any electrical job, large or small."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+3

Response time11 hrs
Response rate100%
1 neighbors recently requested a quote
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Showing 1-10 of 296
FAQs for electrical wiring or panel upgrade projects in Danville, CA

Yes, a licensed electrician is essential for this project. Running an electrical service from the road to your house involves connecting to utility power lines, complying with national and local electrical codes, and safely handling high-voltage systems. 

Licensed professionals understand proper wire sizing, grounding requirements, and voltage drop calculations needed for safe installation. Most jurisdictions require permits and inspections that only certified professionals can obtain. The safety risks and potential for property damage make this project inappropriate for DIY attempts.

Overhead installations are less expensive than underground options. For a 1000-foot run, overhead service costs between $8,000 and $15,000, while underground service ranges from $10,000 to $25,000. 

Overhead lines require less labor and fewer materials since they don't need trenching or conduit. However, underground lines offer better protection from weather events and aesthetic benefits. Your decision should balance your budget constraints with long-term reliability and visual preferences.

You might need to upgrade your electrical panel depending on your power requirements. If your existing panel cannot handle the additional load from the extended service, upgrading to a 200-amp service (costing $750 to $2,000) may be necessary. 

A licensed electrician can evaluate your current system and determine if an upgrade is required. Factors include what you'll be powering at the end of the line, existing electrical demand, and whether voltage drop over the distance will affect performance.

Running electric service from the road to a house requires electrical permits from your local building department, costing between $500 and $2,000 depending on your location. You may also need excavation permits for trenching work if installing an underground service. Your utility company will have its own application process for connecting to its grid. A licensed electrical contractor can handle all the necessary permit applications as part of their service, ensuring your installation meets all local code requirements.

The Danville, CA homeowners’ guide to electrical wiring or panel upgrades

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