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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(
141
)
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 by74%of homeowners
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Evolution Power and Development
4.8(
26
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Guilderland, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Offers commercial services

Customers say: Quick response

"Jesse completed the electrical work for our new above ground pool and also replaced our electrical panel. He was professional, timely and very reasonably priced. We will use him for all future electrical work at our home."
Response time9 hrs
Response rate97%
25 neighbors recently requested a quote
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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%
49 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

"Nick was very professional. Had my generator serviced in a timely manner. Will recommend to everyone."
Generac Generator
Response time20 mins
1 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
3 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

"I know the owner personally. Being a 3rd-generation electrician, he consistently performs at a high standard. He took care of all outlets, lights, and some panel work for my kitchen remodel—done fast, efficiently, and at a fair price. I highly recommend him."
CHIEF ELECTRIC LLC
37 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.

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.

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

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.

See all articles