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Verified Reviews for Generator Install pros in Fairfax, CA

*The Angi rating for Generator Install companies in Fairfax, 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 Fairfax, 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 26, 2024

Find Generator install pros in Fairfax

Avatar for Boost Electric, LLC
Boost Electric, LLC
5.0(
13
)

Serving Fairfax, CA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Installed two chandeliers for us. Were great to work with and the lights look beautiful."
Response time10 hrs
7 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for Sonoma Coast Electric, Inc
Sonoma Coast Electric, Inc
5.0(
6
)

Serving Fairfax, CA and surrounding areas

Approved

In business since 2024

Free estimates

Warranties offered

"I had 2 ceiling fan/lights installed in the bedrooms. Installation included 2 new circular circuit boxes in each bedroom ceiling. In addition, I replaced the kitchen ceiling light with an LED fixture. The 2 workers were very polite and professional and worked quickly and efficiently, in addition to being respectful of my personal belongings."
Multimeter Test
100 amp Sub Panel
100 amp Sub Panel
Installing Unistrut
Stripping Wire

+3

Response time1 day
Response rate94%
17 neighbors recently requested a quote
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Avatar for E Fitzgerald, Inc.
E Fitzgerald, Inc.
4.2(
27
)

Serving Fairfax, CA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"The consultation with Sean was very helpful and corrected the unit we actually needed. The work was done in a timely way, very professional and thorough. The hook up of the transfer switch was perfect on the trial runs with the generator. Sean has quiet confidence that he communicated with me and gave me the trust I needed to work with his family business that was new to me. I would go right back to Fitzgerald again. Good team, good work, and good service."
Electrical
Response time2 days
13 neighbors recently requested a quote
Recommended by66%of homeowners
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Avatar for Christopher Robert Ceinar
Christopher Robert Ceinar
5.0(
14
)

Serving Fairfax, CA and surrounding areas

Approved

In business since 2023

Offers commercial services

"Chris did a wonderful job in my project. He installed light fixtures and replaced electrical switches for me. He went over and above, cleaning up a messy wiring situation that he discovered. Chris was professional, had great attention detail and extremely conscious of the work surroundings. He was very kind and considerate. I highly recommend Chris for anyone who needs electrical work."
4 neighbors recently requested a quote
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Avatar for Bragg Home Services
Bragg Home Services
4.7(
45
)

Serving Fairfax, CA and surrounding areas

Approved

In business since 1968

Free estimates

Small jobs welcome

"The installers were very sweet and professional. But I donâ t think I was made completely aware of how the exterior installation would look. The last 4 or 5 feet of the white pipeline are not covered and it looks unfinished and messy."
Response time2 days
Response rate91%
150 neighbors recently requested a quote
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Proper Power Electric
5.0(
5
)

Serving Fairfax, CA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Reliable Service and Excellent Customer Care I’ve been really impressed with this electric company from day one. The service is consistent, my power has been reliable, and I’ve noticed real savings on my monthly bills compared to my previous provider. Whenever I’ve had a question, their customer support team has been friendly, responsive, and genuinely helpful — no long hold times or confusing answers. I also appreciate their focus on clean energy and efficiency — it feels good knowing I’m supporting a company that actually cares about the community and the environment. Overall, top-notch experience. Highly recommend to anyone looking for dependable and affordable electric service."
Response time5 hrs
3 neighbors recently requested a quote
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Generator Install questions, answered by experts

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

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.

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. 

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

The Fairfax, 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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