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Verified Reviews for Generator Install pros in Concord, CA

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

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

Last update on November 18, 2025

Find Generator install pros in Concord

Avatar for Fitch Electric, Inc.
Fitch Electric, Inc.
5.0(
14
)

Serving Concord, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"It is weeks like this that make me so happy to have had Fitch Electric install a generator at my house. I had them install an EV Generator a few months ago and bit the bullet for the generator knowing this summer would be HOT and PGE would be shutting us down as usual. I cannot say enough great things about Fitch Electric https://fitchelectricinc.com/ They are professional, reasonably priced and are on-time and on budget. Thanks Lucas and your team at Fitch Electric 5 out of 5 star recommend ! I only said 4.5/5 on the value only because it's expensive regardless so this isnt a knock on Fitch just the whole generator world and PGE in general. I wish we didn't have to do this but in these times over the last several years WE KNOW that PGE will be shutting off power and this is just what we have to do. I love Fitch! Will use them again 100% in the future."
Finished product
Sketch showing generator install.
Pouring the concrete pad for generator.
Generator delivered to client.
Hoisting generator over ledge.

+6

Response time2 days
11 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for LIMON ELECTRIC & CONSTRUCTION
LIMON ELECTRIC & CONSTRUCTION
4.6(
213
)

Serving Concord, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1996

Free estimates

Emergency services offered

"Juan knows what he is doing! Very professional and flexible. He will answer your questions 24/7. I Will highly recommend his company for any electrical project. Job well done. Kudos to juan."
celing fan on concreat
TV wall mount, and recessed lighting installation
Flat screen tv & ressesed
The Old Alameda wells Fargo Bank
The Bank Vault

+20

Response time11 hrs
9 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for Emrom Electric, Inc.
Emrom Electric, Inc.
4.7(
80
)

Serving Concord, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"I am very satisfied with his service! His name is Emanuel. I hired him through HomeAdvisor. All the outlets in my 3 bathrooms and outside the house were not working. It is not the GFC breaker. Emanuel needed to trace where the problem was coming from. It took him less than 30 minutes to fix the problem. His fees was very reasonable. I would hire him again. On his business card, it stated that he is an Electrical Engineer and the Owner. This is an added value for me. Thank you. RG, Concord, CA"
High Voltage systems
Control system
High Voltage controls
Control system
Electrical main panel upgrade

+9

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

Serving Concord, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"I am updating my rating for CA Electrical (Unfortunately Angi will not allow me to edit, so I am posting this as a new review). After posting my original review I was contacted by CA Electrical. The supervisor assured me that my experience was not their normal practice and that they normally made sure to call if there was a change of plans. I felt that they were earnest in trying to make things right, so I agreed to give them another chance. I ultimately decided to select them for my project to replace sub panel and install outlets. The crew was excellent and professional. They showed up on time, were professional and friendly, took extra care to ensure work spaces were left clean. Their workmanship was excellent and they did a great job of cleaning up some messy electrical wiring that had been there before. As an electrical engineer, I also appreciated the crews knowledge of code and ability to explain the technical side of the installation. I would use them again."
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
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Avatar for Line Load Electric
Line Load Electric
5.0(
21
)

Serving Concord, CA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"I had a great experience working with Billy to install a car charging circuit on my main panel. Timely work and a clean environment. Highly recommended."
Line load electric
Line load electric
Line load electric
Full Kitchen Remodel
Full Kitchen Remodel

+7

Response time5 hrs
Response rate88%
2 neighbors recently requested a quote
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Avatar for BONNER ELECTRIC
BONNER ELECTRIC
5.0(
13
)

Serving Concord, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Credit card accepted

"Did a great job installing a socket and lights in my garage. Was super friendly, reliable, and didn't charge a ridiculous price! Definitely worth getting David to give you a quote!"
600 amp service
Response time9 hrs
1 neighbors recently requested a quote
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Generator Install questions, answered by experts

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.

The Concord, CA homeowners’ guide to generator installs

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

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