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Avatar for AMP-A-NEER
AMP-A-NEER
4.9(
28
)
Portable Generator - Install

Serving Napa, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Project: Install Electrical Switches, Outlets. They were on time, professional and flexible. Also, discussed future projects - replacing a fixture in bathroom, and on their way out attached a smog detector the right way. I would definitely use this company again."
Response time3 hrs
Response rate91%
14 neighbors recently requested a quote
Avatar for A Better Electrical Company Inc
A Better Electrical Company Inc
5.0(
11
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Napa, CA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Outstanding work! I needed some rewiring done, can lights installed in the kitchen, multiple outlets and switches changed out prior to selling my house. I also had the breaker box upgraded in the garage. They did all the work with just to visits. Some items had to be ordered. Great work! Fantastic clean up! Friendly and polite! Offered me a military discount without me even asking! If I ever need electrical work again these are the folks I'm going to and you should too!"
EV Charging Station
Ceiling Fan Instal
Electrical Panel
Electrical Panel
Ceiling Fan Install

+12

6 neighbors recently requested a quote
Avatar for Christopher Robert Ceinar
Christopher Robert Ceinar
5.0(
14
)
Fixed Generator - InstallPortable Generator - Install

Serving Napa, CA and surrounding areas

Approved

In business since 2023

Offers commercial services

"We had an amazing experience with our electrician! He handled everything from installing our switches and outlets to completing the electrical wiring with incredible attention to detail. He also installed and wired our garage door motor flawlessly, and made sure everything, including the subpanel, was done properly and safely. What really stood out was his professionalism and work ethic. He kept everything clean and organized, which made a huge difference It’s not easy finding someone this reliable, skilled, and thorough. Highly recommend to anyone looking for quality electrical work done right the first time!"
4 neighbors recently requested a quote
Avatar for Villa Handyman - Unlicensed Contractor
Villa Handyman - Unlicensed Contractor
4.6(
47
)
Portable Generator - Repair

Serving Napa, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Customers say: True professional

"Armando is very professional, and I almost did not hire him because of a previous review he had on his feedback. Therefore, I received another quote from a higher rated area contractor who also stated prices were better. The other company failed to show up as scheduled, but arrived the following day and his prices were higher than Armandos quote. He did a fantastic job, price was fair, and was promt. He is trust worthy too, I had to run to my daughters college, 3.5 hours later, I arrived back at home..everything was perfectly installed, other items working in tip-top shape. He is respectful, and he is picks up after himself (and some of my extra dog hair too). Armando is my new, go to handyman. I am sure you will find him great.. He serves the Pleasanton area toom"
New remodel kitchen
Main water line replace
All cities projects well
All cities projects well
All cities projects well

+9

Response time4 hrs
Response rate89%
10 neighbors recently requested a quote
Avatar for Golden Bay Electric
Golden Bay Electric
4.9(
29
)
Portable Generator - Install

Serving Napa, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Edgar is very detailed, respectful, professional with very good customer service! He showed up on time and completed the electric panel change sooner than expected! I have already referred him to my cross the street neighbor, Diane. Hopefully she will reach out soon for an estimate to change out her electrical panel too. Thank you ð ð"
Response time2 days
Recommended by92%of homeowners
Warner Electric
5.0(
6
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Napa, CA and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Steve and his team have done a number of jobs for me from installing light fixtures to adding additional outlets in the bathroom which required going underneath the house. They are professional, timely, courteous, clean, reliable and reasonably priced!"
7 neighbors recently requested a quote
Recommended by100%of homeowners
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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

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.

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

The Napa, CA homeowners’ guide to generator installs

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