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Verified Reviews for Generator Install pros in Portola, CA

*The Angi rating for Generator Install companies in Portola, 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 Portola, 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 October 27, 2025

Find Generator install pros in Portola

Red Rock Electric

8517 Corrigan Way
4.81(
8
)
•Approved Pro

Red Rock Electric

8517 Corrigan Way
4.81(
8
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

Red Rock Electric has been in business since 2018 with over 15 years of experience! We specialize in all your home improvement electrical needs, and guarantee you a job well done! All the way from electrical switches outlets & fixtures, to electrical panel upgrades, we are your guys! We strive to exceed the homeowners expectations each and every time, and get the job done the way YOU want it. We work in a timely fashion, and always pay attention to detail. Free estimates. Call today!

"Jed knows what heâ s doing. They showed up when scheduled, came up with a plan, coordinated with the plumber and is working with the Town permitting process. They got the generator installed, worked clean and knows the Generac procedures to get in online. I would highly recommend Jed and Red Rock Electric A++"

Terry H on June 2022

Red Rock Electric has been in business since 2018 with over 15 years of experience! We specialize in all your home improvement electrical needs, and guarantee you a job well done! All the way from electrical switches outlets & fixtures, to electrical panel upgrades, we are your guys! We strive to exceed the homeowners expectations each and every time, and get the job done the way YOU want it. We work in a timely fashion, and always pay attention to detail. Free estimates. Call today!

"Jed knows what heâ s doing. They showed up when scheduled, came up with a plan, coordinated with the plumber and is working with the Town permitting process. They got the generator installed, worked clean and knows the Generac procedures to get in online. I would highly recommend Jed and Red Rock Electric A++"

Terry H on June 2022

Avatar for Liberty Solar

Liberty Solar

3414 Putter Place
5.00(
1
)

Liberty Solar

3414 Putter Place
5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Liberty Solar designs, engineers, and installs Advanced Renewable Energy Systems. We do NOT use sub-contractors. We take great pride in our work and we install only the best American-made equipment and the best prices. We have many financing options available.

Liberty Solar designs, engineers, and installs Advanced Renewable Energy Systems. We do NOT use sub-contractors. We take great pride in our work and we install only the best American-made equipment and the best prices. We have many financing options available.

Energytech Inc. DBA Advance Power Redding

843 N. Market St.
No reviews yet

Energytech Inc. DBA Advance Power Redding

843 N. Market St.
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.

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.

My Classic Car Trader LLC

312 Prospect Ave
2.00(
1
)

My Classic Car Trader LLC

312 Prospect Ave
2.00(
1
)
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

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

Sterling Auto Repair

11400 State Hwy 49
4.50(
2
)

Sterling Auto Repair

11400 State Hwy 49
4.50(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Complete auto care solution, from oil changes to engine swaps we do it all. Quick turn around and friendly, knowledgeable service from start to finish.

Complete auto care solution, from oil changes to engine swaps we do it all. Quick turn around and friendly, knowledgeable service from start to finish.

Generator Install questions, answered by experts

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.

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.

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

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.

The Portola, 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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