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Verified Reviews for Generator Install pros in Durham, NY

*The Angi rating for Generator Install companies in Durham, 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 Durham, 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 December 21, 2025

Find Generator install pros in Durham

S & S Electric of NY, LLC
5.0(
141
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Durham, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1989

Free estimates

Emergency services offered

"Wes returned our phone call & set up a consultation appointment. Followed up with a quote and explanation of costs. We set up the installation time and Wes arrived / installed bathroom fan /ran the fan to ensure satisfaction then cleaned up the work space. We would recommend S&S Electric."
New 200 amp electrical service panel
Existing 100 amp electrical service meter & pa
Exiting 2 meter, 2 panel electrical service
New 2 family, 2 panel circuit breaker service
Response time1 day
2 neighbors recently requested a quote
Recommended by74%of homeowners
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Avatar for Crisafulli Bros. Home Services
Crisafulli Bros. Home Services
4.7(
72
)
Fixed Generator - InstallFixed Generator - Repair

Serving Durham, NY and surrounding areas

Approved

In business since 1939

Credit card accepted

Offers commercial services

"Brandon came out this morning to assess the issue. He was very polite and professional. Maximus and Jon were my installers. They were professional, polite and got the job done timely. Great guys!"
Response time9 hrs
Response rate86%
49 neighbors recently requested a quote
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Avatar for JSP Plumbing & Heating, Inc.
JSP Plumbing & Heating, Inc.
3.8(
34
)
Portable Generator - InstallFixed Generator - InstallFixed Generator - Repair+4 more

Serving Durham, NY and surrounding areas

Approved (Corporate)

In business since 2006

Free estimates

Emergency services offered

"JSP Home Services replaced our old Minisplit. It was one of the hottest days of the year, We called scheduled and JSP arrived the next day and completed the install by noon."
Response time1 day
Response rate100%
21 neighbors recently requested a quote
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Ambrose Electric
4.4(
57
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Durham, NY and surrounding areas

In business since 1980

Free estimates

Emergency services offered

"I had a home generator installed. They coordinated with the propane company I had chosen, which according to the propane serviceman was not a common practice. The were totally professional and I now have peace of mind that in the event of our next power outage I will have power to run my home."
Installed Generator
Installed Generator
Generator Installation
Generator Install
Recommended by95%of homeowners
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Avatar for Comalli Electric Inc
Comalli Electric Inc
4.4(
34
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Durham, NY and surrounding areas

In business since 1981

Free estimates

Emergency services offered

"Well but old house complicated the work and not all work could be completed without major upgrading."
Recommended by100%of homeowners
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Moore Power Systems
5.0(
7
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Durham, NY and surrounding areas

In business since 2021

Free estimates

Emergency services offered

"Moore Power Systems has helped install multiple projects for myself! Some of these jobs were industrial/commercial as well as a couple residential jobs. Pat is extremely professional, provides high quality work in a timely manner! Every project he has completed has exceeded expectations, all while maintaining a fair price! I would definitely recommend his work to anyone!"
The end result, out of earsight
The trench we dug, we also removed some old satellite dishes for the customer at their request.
Even had to go under a side walk
Recommended by100%of homeowners
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Avatar for Panicola Electric
Panicola Electric
5.0(
4
)
Fixed Generator - Install

Serving Durham, NY and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"They showed up quickly on a Friday evening when we had smoke detector problems. Courteous and efficient"
Response time20 mins
Response rate92%
Recommended by100%of homeowners
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Showing 1-10 of 22
Generator Install questions, answered by experts

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.

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

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.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

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.

The Durham, 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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