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Verified Reviews for Generator Install pros in Marion, NY

*The Angi rating for Generator Install companies in Marion, NY 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 Marion, NY 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 September 04, 2026

Find Generator install pros in Marion

Avatar for Anderson Water & Power
Anderson Water & Power
4.4(
618
)
Fixed Generator - Install

Serving Marion, NY and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1988

Free estimates

Emergency services offered

"We had a Cummins generator installed. Our installers were professional and knowledgeable. I highly recommend Anderson."
Free Water Test!
Cummins
Cummins Install
Cummins
Transfer switch Cummins

+62

Response time2 days
136 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for Hurricane Home Solutions, Inc.
Hurricane Home Solutions, Inc.
4.6(
245
)
Fixed Generator - Install

Serving Marion, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Pretty straight forward. Establish size,generator. Installed in an afternoon. Work professional and neat."
Champion Power Equipment Logo
8.5kW Side Profile
8.5kW Front Profile
Champion Automatic Transfer Switch
Cummins Logo

+9

Response time11 hrs
Response rate100%
15 neighbors recently requested a quote
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John Betlem Heating & Cooling Inc - Electrical
4.7(
157
)
Fixed Generator - Install

Serving Marion, NY and surrounding areas

Approved (Corporate)

In business since 1941

Free estimates

Emergency services offered

John Betlem Heating & Cooling is a 3rd generation company founded in 1941. They provide Residential HVAC, Electrical and Insulation Services to Rochester, NY and the surrounding towns. John?s slogan that still holds true today is to do ?whatever it takes? to satisfy customers.\n\nJohn Betlem is a premier family operated solutions provider, passionately committed to the health, safety, and comfort for all they serve.

21 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for T-Mark Plumbing, Heating, Cooling & Electric
T-Mark Plumbing, Heating, Cooling & Electric
4.5(
643
)
Fixed Generator - InstallFixed Generator - Repair

Serving Marion, NY and surrounding areas

Approved

In business since 1992

Free estimates

Credit card accepted

T-Mark Plumbing, Heating, Cooling & Electric was founded over 25 years ago to provide friendly, efficient service to residents and businesses across Buffalo and Western New York. The largest family-owned and operated business in WNY that understands the challenge and frustrations that can occur with plumbing, HVAC, and electrical emergencies. Community voted the # 1 company in 716 and available 24 hours a day 7 days a week. Our day one focus has never changed: 100% customer satisfaction. We take the time, every time, to ensure our customers are left happy and satisfied with not only the quality of our work, but with the entire T-Mark experience.

Multi-Unit Install
17 neighbors recently requested a quote
Recommended by90%of homeowners
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A & A Electric
4.7(
13
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Marion, NY and surrounding areas

Approved

In business since 1972

Free estimates

Customers say: Quick response

"Anthony was very attentive to my project on an old building. He sought out a safe and viable solution to change out an old fuse box and relocate with a new breaker box. He was quick with a response to my request, inspection and quickly gave a solution with a quote. Once I accepted, he scheduled my work right away. He was also prompt on the day of installation and did the work professionally and quickly. I recommend A & A Electric and I would even recommend Anthony to my family and friends. - Pastor Jeff"
Response time5 hrs
Recommended by91%of homeowners
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Reliable Power Systems
4.8(
53
)
Fixed Generator - RepairGenerator - Repair - For Business

Serving Marion, NY and surrounding areas

In business since 2008

Free estimates

"Mike went above and beyond for me today. I need the generator for medical and respiratory equipment and Mike rearranged his schedule to get the generator running today! Very knowledgeable, and someone I immediately trusted and felt blessed by the introduction and service he provided to me and my family. I would strongly, recommend Reliable Power Systems and will certainly continue to call on them."
Recommended by100%of homeowners
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Avatar for Reliable Power Systems
Reliable Power Systems
4.8(
28
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Marion, NY and surrounding areas

In business since 2008

Emergency services offered

Credit card accepted

"Mike did an EXCELLENT job from start to finish making sure the generator was working properly. He fixed something others couldn’t fix, VERY satisfied with Mike and his company!"
Additional Photos
Additional Photos
Recommended by100%of homeowners
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Generator Install questions, answered by experts

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

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.

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.

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.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

The Marion, NY 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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