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Verified Reviews for Generator Install pros in Guilderland, NY

*The Angi rating for Generator Install companies in Guilderland, 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 Guilderland, 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 August 15, 2026

Find Generator install pros in Guilderland

S & S Electric of NY, LLC
5.0(
138
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Guilderland, 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 by76%of homeowners
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Avatar for Dig Dug Electric LLC
Dig Dug Electric LLC
5.0(
13
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Guilderland, NY and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"We had a fantastic experience with Dig Dug Electric who recently installed our Ring doorbell. The installation was quick, clean, and everything works perfectly. He even took the time to walk us through how it works and answered all our questions. We would absolutely recommend him to anyone looking for reliable and high-quality handyman services. Great job!"
New Addition Wiring
2' Retaining Wall
Building Permit
Residential Wiring
Residential Wiring

+5

Response time4 hrs
Response rate100%
6 neighbors recently requested a quote
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Avatar for Crisafulli Bros. Home Services
Crisafulli Bros. Home Services
4.7(
72
)
Fixed Generator - InstallFixed Generator - Repair

Serving Guilderland, 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%
52 neighbors recently requested a quote
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Avatar for Renus Electric LLC
Renus Electric LLC
5.0(
6
)
Fixed Generator - Repair

Serving Guilderland, NY and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Very professional and quick timing. Ended up having him do more than just fix my generator, they are great with all electrical work! Highly recommend"
Generac Generator
Response time20 mins
2 neighbors recently requested a quote
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Avatar for ZW Mason Electric, LLC
ZW Mason Electric, LLC
5.0(
7
)
Fixed Generator - InstallPortable Generator - Install

Serving Guilderland, NY and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Zach installed a new electrical outlet for our dryer. He took the time to explain what he was going to do and had the work done within 2 days of giving the estimate. I would use him again for any electric work."
ZW Mason
4 neighbors recently requested a quote
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Avatar for CHIEF ELECTRIC LLC
CHIEF ELECTRIC LLC
5.0(
20
)
Portable Generator - Install

Serving Guilderland, NY and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Excellent job installing our 120V outdoor generator outlet! The weatherproof box is securely mounted, ran the conduit neatly, and clearly labelled for emergency use. I truly appreciate the quick turnaround time and how efficient you got everything set up and tested. Highly recommend for any fast reliable electrical work!"
CHIEF ELECTRIC LLC
54 neighbors recently requested a quote
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Avatar for Troy Generator Service
Troy Generator Service
New to Angi
Fixed Generator - Repair

Serving Guilderland, NY and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

Troy Generator Service LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business. 21 years experience.

Response time20 mins
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Avatar for Advanced Power, LLC
Advanced Power, LLC
4.8(
38
)
Fixed Generator - RepairGenerator - Repair - For Business

Serving Guilderland, NY and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"What a great person to deal with he took time out of his busy schedule to just to take a look at my generator. Then while taking a look he automatically seen a few problems and fixed them right away. Would hire him in a heartbeat for future problems"
Generac 16kW
Generac 22kW
Generac Residential Installation
Response time1 day
Recommended by100%of homeowners
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Avatar for Hurricane Home Solutions, Inc.
Hurricane Home Solutions, Inc.
4.6(
209
)
Fixed Generator - Install

Serving Guilderland, NY and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"Generator installed. Excellent job putting everything in and cleaning up."
Champion Logo
8.5kW Champion Side Profile
8.5kW Champion Front Profile
Champion Transfer Switch
Cummins Logo

+9

Response time12 hrs
Response rate100%
Recommended by92%of homeowners
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Showing 1-10 of 39
Generator Install questions, answered by experts

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.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

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.

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 Guilderland, 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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