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Verified Reviews for Generator Install pros in Sunnyvale, CA

*The Angi rating for Generator Install companies in Sunnyvale, 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 Sunnyvale, 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 19, 2025

Find Generator install pros in Sunnyvale

Avatar for Dalcon Electric
Dalcon Electric
4.5(
429
)

Serving Sunnyvale, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Emergency services offered

Warranties offered

"Easy to work with and quick install. Communication was friendly and professional."
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+9

Response time9 hrs
Response rate98%
27 neighbors recently requested a quote
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Avatar for Dalcon, Inc.
Dalcon, Inc.
4.7(
84
)

Serving Sunnyvale, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Emergency services offered

Small jobs welcome

"Dalcon responded quickly and got the work done. Very friendly and helpful employees"
SPAN Smart Panel
SPAN Smart Panel
Los Gatos Multi Meter
Response time7 hrs
Response rate88%
16 neighbors recently requested a quote
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Proper Power Electric
5.0(
5
)

Serving Sunnyvale, CA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Response time2 days
Response rate100%
3 neighbors recently requested a quote
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Home Pro Remodeling & Construction, Inc.
4.1(
31
)

Serving Sunnyvale, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"I hired home pro remodeling to put pavers on my back yard and to install flloring thorough out the whole house I'm super setasfied with the work and the service . The company also provided me great financial options which I used thank you kobi Leo and Lucas for your great service . Highly recommend them for everyone"
Response time5 days
Recommended by77%of homeowners
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Avatar for Mr. Electric of San Jose South
Mr. Electric of San Jose South
5.0(
1
)

Serving Sunnyvale, CA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

Here at Mr. Electric of San Jose South, we're excited to earn your business! Locally owned and operated, we are known in the area for our prompt service and attention to detail. Customer satisfaction is always our primary concern, so be sure to give us a call today!

Ceiling Fan Install
Added new junction box and new fixtures in Bathroom.
Bathroom Remodel
Panel Upgrade
Response time1 day
Response rate85%
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Avatar for Bay Area Construction Projects LLC
Bay Area Construction Projects LLC
5.0(
2
)

Serving Sunnyvale, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Great customer service. Started job quickly. No short cuts doing a quality repair of window flashing install under wood paneling directly above window and making new paneling and installed. We hope to use him again. Highly recommend!"
5 neighbors recently requested a quote
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Avatar for Vilroy
Vilroy
New to Angi

Serving Sunnyvale, 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

Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

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.

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

Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn’t working. The trick is using a transfer switch (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.

The Sunnyvale, 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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