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Verified Reviews for Generator Install pros in Lathrop, CA

*The Angi rating for Generator Install companies in Lathrop, 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 Lathrop, 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 December 22, 2025

Find Generator install pros in Lathrop

Avatar for Hunts Electrical Services
Hunts Electrical Services
5.0(
27
)

Serving Lathrop, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Credit card accepted

"Just had them come and install some can lighting in my hall way that I wanted for some time now. They were able to remove my old fixture in the hall and install 4 new LED can lights, even installed the dimmer I wanted with it. Much appreciated!"
Response time6 hrs
Response rate95%
11 neighbors recently requested a quote
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Avatar for Santiago Electric, Inc.
Santiago Electric, Inc.
4.9(
23
)

Serving Lathrop, CA and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"I will definitely use Santiago Electric Inc again for my Electrical Jobs. I highly recommend them. They were on time, professional, knowledgeable and worked fast. They explained everything they were doing throughout the repair job. T. Gonzales"
Response time5 hrs
Recommended by95%of homeowners
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Mister Sparky
4.8(
5
)

Serving Lathrop, CA and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

At Mister Sparky®, we know how much you depend on electricity to power your daily life. Luckily, we’re experts when it comes to safeguarding against its inherent dangers and are ready to do the reliable work needed to ensure your home’s electrical systems work for years to come.\n\nOur highly trained, licensed electricians are professional troubleshooters who hunt potential hazards and fix them before they cause serious damage. We show up on time, guaranteed, and deliver 100% satisfaction guaranteed with every service call. And because we’re locally operated, our electricians are familiar with the challenges you might face.

34 neighbors recently requested a quote
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Avatar for FOX ELECTRIC
FOX ELECTRIC
5.0(
6
)

Serving Lathrop, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"Toby was friendly and on time. He installed a patio light and light bulbs in fixtures that are in challenging places. I would recommend and hire him again."
FOX ELECTRIC
Solar/Electrical
Panel Upgrade
Service install
Panel Upgrade

+2

3 neighbors recently requested a quote
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Avatar for Atomic Telecomm & Electrical Inc.
Atomic Telecomm & Electrical Inc.
4.5(
9
)

Serving Lathrop, CA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"He is a very hard worker and knows exactly what needs to be done to complete the job. I would hire him again in the future."
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 Mr. Electric of Elk Grove
Mr. Electric of Elk Grove
5.0(
2
)

Serving Lathrop, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Mr. Electric® is a proud part of Neighborly®, the home of exceptional service. We provide expert electrical service, so your home is safe, efficient, and convenient. All of our locally-owned and operated locations have earned the trust of the communities they live in and serve because that's just the Neighborly thing to do. With up-from pricing and top quality workmanship, we're committed to a job well done that is supported by the Neighborly Done Right Promise™ - if it's not done right, we promise to make it right.

Project Photos
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Project Photos

+14

35 neighbors recently requested a quote
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Generator Install questions, answered by experts

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

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.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

The Lathrop, CA homeowners’ guide to generator installs

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

See all articles