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The Plug
4.8(
10
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Cupertino, CA and surrounding areas

Approved

In business since 2012

Emergency services offered

Warranties offered

"The Plug, such a great name for a business that focuses not only on the task at hand but on great customer service! Michelle, a diligent individual and entrepenuer performed electrical and sound work at a shred job site. The electrical work she did was exceptional, the sound system she installed was of high quality. She brought a lot of smiles and joy with the sound system and beautiful lights that were installed. Overall everything went well and the client seems extremely happy with her work."
Additional Photos
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+17

Response time2 days
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Mister Sparky
Mister Sparky
5.0(
5
)
Fixed Generator - RepairFixed Generator - InstallGenerator - Install - For Business+1 more

Serving Cupertino, CA and surrounding areas

Approved

Warranties offered

Credit card accepted

Locally owned electrical contractor serving Fremont, Dublin, Pleasanton, San Ramon, Newark, Union City, Hayward, Castro Valley, Sunol, and Livermore. Licensed C-10 electrician (CSLB #1152364), fully bonded and insured with $1M liability coverage. Our team handles electrical repair, panel upgrades, EV charger installation, whole-home rewiring, lighting, smoke detectors, and 24/7 emergency service. Every job is backed by the UWIN 100% satisfaction guarantee, and our electricians are background-checked and drug-screened. We are a certified SPAN panel installer. SPAN panels are now the world's smartest electrical panel.

Meter main combo
Charter Install wall
M&M combo
Installed Charger
SPAN Smart Center

+3

61 neighbors recently requested a quote
Avatar for JP Services
JP Services
4.9(
31
)
Portable Generator - Repair

Serving Cupertino, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"JP Services installed a Moen Flo water leak detector. The original pipe was a little short, so he extended it to install the device. The job was done well, but he had to fix a small leak he caused and left some residue from his blowtorch. Overall very worth the price."
Olé tile
Old tile
Old tile
Countertop remodeling
Countertop remodeling

+72

Response time1 day
2 neighbors recently requested a quote
Proper Power Electric
5.0(
5
)
Fixed Generator - Install

Serving Cupertino, 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 time5 hrs
4 neighbors recently requested a quote
Home Pro Remodeling & Construction, Inc.
4.1(
31
)
Portable Generator - Repair

Serving Cupertino, 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
Avatar for Mr. Electric of San Jose South
Mr. Electric of San Jose South
5.0(
1
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Cupertino, 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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Generator Install questions, answered by experts

If your home already has a grinder pump and you’re still noticing issues (like frequently clogged toilets and sinks), it could be time to upgrade your grinder pump. Start by checking your existing horsepower. If there are four or fewer people living in your home, using a 1/2-horsepower grinder pump should be sufficient. Larger households should consider investing in a 1-horsepower grinder pump to maximize wastewater removal efforts.

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.

Costs range from $500 to $2,500, depending on generator type and installation complexity.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

In most cases, there are no tax credits available for home generators. However, that’s a general statement that applies to federal tax credits, so you might have access to state or local tax incentives. You can check the Database of State Incentives for Renewables & Efficiency (DSIRE) for more information about your area. If you hire a reliable home generator installer, they should also know if there are any state or local perks you can use to reduce your installation costs, including tax breaks and rebates.

The Cupertino, CA homeowners’ guide to generator installs

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