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Verified Reviews for Generator Install pros in Fairfield, CA

*The Angi rating for Generator Install companies in Fairfield, 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 Fairfield, 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 April 23, 2026

Find Generator install pros in Fairfield

Avatar for Buzz Electric 2
Buzz Electric 2
4.9(
28
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Fairfield, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Emergency services offered

"The electrician did a fantastic job. He was on time, very professional and did a perfect installation of my ceiling. His rates were very reasonable as well."
Additional Photos
Additional Photos
Additional Photos
Response time2 days
Response rate100%
6 neighbors recently requested a quote
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Avatar for Golden Bay Electric
Golden Bay Electric
4.9(
29
)
Portable Generator - Install

Serving Fairfield, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Overall experience was average. First day of installation was okay until I find out half of the house did not have power. Edgar came back the next day and explained the cause and fixed it with ease. Was getting push back about how everything was installed as it was and there shouldnâ t be any issues, well there was and he graciously came back and fixed the problem. I would definitely use this company in the future."
Response time2 days
1 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for Legacy Electrical Service
Legacy Electrical Service
5.0(
6
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Fairfield, CA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"One of the workers was a plumber who noticed (heard) a leak in the Cityâ s water connection, under the sidewalk. City came out & fixed it (hope my water bill plummets!)"
200a
100a
125a
100a Solar Ready
200A Solar Ready

+29

Response time2 days
2 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Atomic Telecomm & Electrical Inc.
Atomic Telecomm & Electrical Inc.
4.5(
9
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Fairfield, CA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"Joe is hard working, diligent, and honest. I hired him 1) to put up an antenna for local tv service and 2) to fix poor wifi signals. TV was converted from cable rapidly using leftover wires. Saving $ not paying for cable and streaming off wifi. Great signal strength! WiFi was harder. He worked with ATT to determine my new iMac was sucking signals. He installed a more powerful router that solved wifi issues when iMac is off. Now I have to work with Apple to figure out how to manage the computer searching. I would not hesitate to call Joe back again. He is an excellent technician and a fine person. He is pretty busy, so sometimes it takes a few days before he can come out, but he is worth the wait."
Network Switch and Router
Driveway Camera
Backyard Camera's
Front Yard Camera
NW corner of house

+9

Response time1 day
Response rate85%
Recommended by87%of homeowners
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Avatar for Vilroy
Vilroy
New to Angi
Portable Generator - Repair

Serving Fairfield, CA and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

With over 28 years of experience in residential and commercial electrical services, I am a fully licensed electrician in the State of California, committed to delivering excellence in every project.\n\nMy work is built on precision, safety, and strict compliance with California electrical codes. From panel and subpanel upgrades to three-phase systems, transformers, lighting installations, and advanced troubleshooting, every job is executed with professionalism and attention to detail.\n\nI don’t just complete projects — I deliver safe, efficient, and long-lasting electrical solutions.\n\nProfessional. Reliable. Done right the first time.

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Generator Install questions, answered by experts

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

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.

The Fairfield, 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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