How do I know what size generator I need?

• <div><p>When <a href="https://www.angi.com/articles/what-size-generator-do-i-need.htm">choosing the right size generator</a> for your needs, consider a few items to help calculate the wattage you’ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:</p><ul><li><p>Refrigerator: 600 watts</p></li><li><p>Large dehumidifier: 700 watts</p></li><li><p>Large window air conditioner: 1,400 watts</p></li><li><p>Water heater: 3,000 watts</p></li></ul><p>Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running. </p></div>

Get matched with top generator install pros in Shasta, CA

Q: What happens with the generator when the local power goes back on?

• <div><p>If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you&rsquo;ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.</p></div>

Q: How big of a generator do I need for a transfer switch?

• <div><p>You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator&rsquo;s largest outlet is 30 amps, you&rsquo;ll need a 30-amp transfer switch.</p></div>

Q: Are natural gas generators worth it?

• <div><p>While natural gas generators are costly, they&rsquo;re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn&rsquo;t prone to earthquakes, they offer an unlimited supply of natural gas that doesn&rsquo;t degrade over time or require storage in tanks.</p></div>

Q: How much does it cost to install a whole-house generator?

• <div><p>The <a href="https://www.angi.com/articles/how-much-does-it-cost-install-generator.htm">cost to install a whole-house generator</a> averages at <b>$5,200</b>, but costs can range from <b>$1,500 to $8,900,</b> depending on the type and size of the generator, and the labor required to install it. To find the best deal while still ensuring the unit meets all the needs of your household, hire an electrician to calculate the electrical load of your must-have appliances and electronics beforehand so you don&rsquo;t pay for more power than you need. As always, be sure to get at least three quotes to find the ideal fit for your needs and budget.</p></div>

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Verified Reviews for Generator Install pros in Shasta, CA

*The Angi rating for Generator Install companies in Shasta, 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 Shasta, 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 09, 2025

Reviewed in March 2025
Bobby Guyton at West Valley Floors provided exceptional service. They were prompt, professional and did a fantastic job! I highly recommend them for any flooring needs! ⭐⭐⭐⭐⭐ 5 Star Rating
West Valley Floors
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Reviewed in October 2022
Kevin installed two dog doors for me. He was prompt to return my call, had a very fair price, and completed the job efficiently. He provides excellent work and values his customers no matter what the job is. I will definitely call him for future projects!
H Industrial - Unlicensed Contractor
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Reviewed in May 2022
Jason did a great job installing wiring to run my generator during PGE outages. He took the time to make sure I understood how to use the power control box. Thank you Jason.
Thurber Electric
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Reviewed in May 2021
The gentleman who did the install was terrific. I was able to get the install done within a couple days. They did an amazing job of replacing the old water heater with this new tankless version. The install was completed in one day (several hours) and it looks amazing. I would recommend this...
Steve Beaton Plumbing
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Reviewed in October 2020
They screwed up big time. First my sink was to be under mounted. The guy cut the hole to big for the sink. I even handed him the template he tossed it to the side. Then they never sealed the countertops. Now around the sink the granite is turn black. Mind you that I purchased these back in june...
Counter Fit
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Reviewed in May 2020
Was able to advise me about getting a sewer clean out installed and what was causing the problem with backed up pipes. No repair was needed. This company is really honest and I will be using them again if I have a plumbing issue. Kyle was supper nice. Very helpful.
Earl's Performance Plumbing
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Reviewed in September 2019
When I called to make an appointment regarding the repair of our tile roof, I specifically stated we had a tile roof... The estimator was on time, pleasant and very apologetic and stated that they do not install or repair tile roofs. I appreciate his honesty, however it always a waist of his and...
CBX Roofs
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Reviewed in May 2014
Granite Transformations were great. From the sales tech to the insulation techs they were all amazing. They were able to lay out a complete template format with the whole process of installing our counter-tops. They came out right away, and very professional. After the job was complete they...
Granite Transformations
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Find Generator install pros in Shasta

Stockton Landscape and Gardening Service

4.67(

)

•Approved Pro

Stockton Landscape and Gardening Service

4.67(

)

•Approved Pro

Customers say: Quality work

10 local quotes requested

31 years of experience

With over 20 years of experience, Stockton Landscape and Gardening Service pride itself on being number one in the area. We service both residential and commercial properties. We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!

"Hired to kill algae on water-feature without killing fish. $1050 later I have 3 new tress to eventually shade a pond that still has algae & all fish are dead."

Phil G on June 2022

"Hired to kill algae on water-feature without killing fish. $1050 later I have 3 new tress to eventually shade a pond that still has algae & all fish are dead."

Phil G on June 2022

Energytech Inc. DBA Advance Power Redding

No reviews yet

Energytech Inc. DBA Advance Power Redding

No reviews yet

24 years of experience

Wholesale & retail renewable energy store specializing in energy conservation & production. We install solar or sell you the materials. We stock Solar panels, 6v batteries, LIPO-4 batteries, DC to AC power inverters, wind turbines, Hydro turbines & parts, radiant barrier foil, Son Shield insulating paint & roof coat. And much more.

Full service marina featuring boat rentals, houseboat rentals, slips, marine boat service, marine fuel, Stand-Up-Paddle board rentals, kayak rentals, and a variety of marine gear in the general store.

FLASH ELECTRIC

5.00(

)

FLASH ELECTRIC

5.00(

)

Customers say: Quick response

Recommended by 100% of Angi customers

Let the friendly staff of certified electricians assist you with all you electrical needs.

My Classic Car Trader LLC

2.00(

)

My Classic Car Trader LLC

2.00(

)

53 years of experience

Sales, Service & Rebuilding of Antique and Classic Car Components such as, Carburetors, Starters, Generators, Fuel Pumps, Double & Single Action Fuel Pump Rebuilding, Water Pumps, Hydraulic Top Pumps, Distributors, and DELCO Knee Action Shocks, We also carry a complete line of NOS and NORS parts. We offer FREE Technical advice for any YEAR Classic Car 609-462-7412

"Beware. They charged me double shipping even after I told them I would wait so I wouldn’t have to pay two shipping fees. The last item was a fuel pump that I had a problem with. I have made 4 calls to ask for help with no return call. Poor"

Frank H on July 2020

"Beware. They charged me double shipping even after I told them I would wait so I wouldn’t have to pay two shipping fees. The last item was a fuel pump that I had a problem with. I have made 4 calls to ask for help with no return call. Poor"

Frank H on July 2020

Generator Install questions, answered by experts

When choosing the right size generator for your needs, consider a few items to help calculate the wattage you’ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:

Refrigerator: 600 watts
Large dehumidifier: 700 watts
Large window air conditioner: 1,400 watts
Water heater: 3,000 watts

Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running.

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

The cost to install a whole-house generator averages at $5,200, but costs can range from $1,500 to $8,900, depending on the type and size of the generator, and the labor required to install it. To find the best deal while still ensuring the unit meets all the needs of your household, hire an electrician to calculate the electrical load of your must-have appliances and electronics beforehand so you don’t pay for more power than you need. As always, be sure to get at least three quotes to find the ideal fit for your needs and budget.

The Shasta, 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

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How Do Whole-House Generators Work?
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