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Verified Reviews for Generator Install pros in Hollister, CA

*The Angi rating for Generator Install companies in Hollister, 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 Hollister, 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 November 21, 2025

Find Generator install pros in Hollister

Avatar for OCG Plumbing, Inc

OCG Plumbing, Inc

5.00(
9
)

OCG Plumbing, Inc

5.00(
9
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

OCG Plumbing is a locally owned “GREEN” plumbing Company.We take extreme pride in our work, respectable team of employees, competitive pricing and quality workmanship.We have been doing business for over 20 years for the greater Monterey Bay peninsula. Our goal is customer satisfaction! We are geared towards providing sustainable products for a better future. We are Licenced (CA.812063)and Insured. We are a traditional plumbing business and charge the old fashion method of time and material for service calls. Many other plumbing companies have change to "Flat Rate" pricing. We feel the traditional method is a more honest and fair way to charge customers. We offer a "Angie's List" discount when you call us for service. WE ARE YOUR SUSTAINABLE PLUMBER FOR LIFE!

OCG Plumbing is a locally owned “GREEN” plumbing Company.We take extreme pride in our work, respectable team of employees, competitive pricing and quality workmanship.We have been doing business for over 20 years for the greater Monterey Bay peninsula. Our goal is customer satisfaction! We are geared towards providing sustainable products for a better future. We are Licenced (CA.812063)and Insured. We are a traditional plumbing business and charge the old fashion method of time and material for service calls. Many other plumbing companies have change to "Flat Rate" pricing. We feel the traditional method is a more honest and fair way to charge customers. We offer a "Angie's List" discount when you call us for service. WE ARE YOUR SUSTAINABLE PLUMBER FOR LIFE!

Avatar for DEGRYSE ELECTRIC

DEGRYSE ELECTRIC

5.00(
2
)

DEGRYSE ELECTRIC

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Get the assurance of always being powered up when you contact Degryse Electric. We are your local commercial electrician in Pleasanton, CA, specializing in electrical service, tenant improvements, and new construction and restaurant projects. We're proud to represent top-quality equipment from Generac with our commercial projects and home generator installations. Our team members are knowledgeable, professional, family-oriented, and dedicated to delivering optimal results with high attention to detail. We strive to establish long-term relationships with our customers, subcontractors, and vendors. We're pleased to offer a 5 percent discount for members of the military and senior citizens. Contact us today for an estimate.

"Service went very well"

Aviv E on July 2023

Get the assurance of always being powered up when you contact Degryse Electric. We are your local commercial electrician in Pleasanton, CA, specializing in electrical service, tenant improvements, and new construction and restaurant projects. We're proud to represent top-quality equipment from Generac with our commercial projects and home generator installations. Our team members are knowledgeable, professional, family-oriented, and dedicated to delivering optimal results with high attention to detail. We strive to establish long-term relationships with our customers, subcontractors, and vendors. We're pleased to offer a 5 percent discount for members of the military and senior citizens. Contact us today for an estimate.

"Service went very well"

Aviv E on July 2023

My Classic Car Trader LLC

2.00(
1
)

My Classic Car Trader LLC

2.00(
1
)
1972 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

All Gen Services LLC

No reviews yet

All Gen Services LLC

No reviews yet

All Gen Services LLc is a owner-operated Generac Authorized Sales, service, and parts Dealer. We offer wide variety of Services for home standby units such warranty repairs, general recommended maintenance, as well as emergency on-call. If your looking into purchasing and have one installed we offer free qoutes! As owner-operater I strive to be deliver exceptional customer service and honest quality work that you can count on.

All Gen Services LLc is a owner-operated Generac Authorized Sales, service, and parts Dealer. We offer wide variety of Services for home standby units such warranty repairs, general recommended maintenance, as well as emergency on-call. If your looking into purchasing and have one installed we offer free qoutes! As owner-operater I strive to be deliver exceptional customer service and honest quality work that you can count on.

Avatar for KRB Construction

KRB Construction

No reviews yet

KRB Construction

No reviews yet
2003 years of experience

We are a full service company. Experienced in all aspects of construction. From new builds to remodels. Let us help you with your project.

We are a full service company. Experienced in all aspects of construction. From new builds to remodels. Let us help you with your project.

Generator Install questions, answered by experts

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

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.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

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.

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

The Hollister, 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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