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Avatar for Dalcon, Inc.
Dalcon, Inc.
4.7(
83
)

Serving Cupertino, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1979

Emergency services offered

Small jobs welcome

"Christopher & Joshua - They explained the process before starting the job and did not try to add additional cost. They showed up on time and completed the job on time."
SPAN Smart Panel
SPAN Smart Panel
Los Gatos Multi Meter
Response time7 hrs
Response rate87%
20 neighbors recently requested a quote
The Plug
4.8(
10
)

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."
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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
)

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
)

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
)

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
)

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
)

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

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.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

Homeowners can often access federal tax credits, such as the Investment Tax Credit (ITC), which covers a percentage of installation costs. Many states and utilities offer additional rebates, grants, or performance-based incentives. These programs can significantly lower your upfront investment. Check the Database of State Incentives for Renewables and Efficiency (DSIRE) or contact your local energy office for current offers.

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.