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TRUSTED BY AMHERST, NY HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon52
    Verified generator installs reviews

Top-Rated Generator install pros in Amherst - Updated Nov 2026

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

Serving Amherst, NY and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1988

Free estimates

Emergency services offered

"We really like the professional job done by Paul, James III and Nate, they answered all our questions and explained everything to our understanding. They are no doubt well-trained in their field and dedicated to the reputation of the company. Kudos to our saleperson Tom, who also happens to be the president. We had on-location visits from 3 companies to have a whole-house generator installed and no doubt picked the best company."
Free Water Test!
Cummins
Cummins Install
Cummins
Transfer switch Cummins

+62

Response time2 days
81 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Johnny's Generator Maintenance
Johnny's Generator Maintenance
5.0(
6
)
Fixed Generator - RepairGenerator - Repair - For Business

Serving Amherst, NY and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"I recently had my generator repaired and serviced, and I was very impressed with the quality of work. Johnny was professional, knowledgeable, and took the time to make sure everything was running properly before he left. My generator is now running great, and I appreciate the honest, reliable service. I highly recommend him for generator repair and maintenance needs."
Generac Standby Generator
2 neighbors recently requested a quote
Avatar for Kelly's Renovations of Buffalo
Kelly's Renovations of Buffalo
5.0(
3
)
Portable Generator - Install

Serving Amherst, NY and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

Kelly's Renovations of Buffalo is the leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you! \n

Gallery
13 neighbors recently requested a quote
South Townes Electric
New to Angi
Fixed Generator - Repair

Serving Amherst, NY and surrounding areas

Approved

In business since 2018

Free estimates

Offers commercial services

South Townes electric, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 15 years of experience serving Hamburg, NY and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

Creekside Power
5.0(
20
)
Fixed Generator - RepairGenerator - Repair - For Business

Serving Amherst, NY and surrounding areas

In business since 2019

Free estimates

Credit card accepted

"Creekside Power is outstanding for electrical work!! The attention to detail put into their work when installing my Generac home standby generator was first class. I am pretty OCD about the way things are done, and Shawn s work was definitely up to my standards. I would highly recommend Creekside Power their price was my second lowest out of 14 estimates... Shawn was only $125 higher than my lowest estimate... and that person was not trained & certified to install Generac products, nor was he a Generac dealer like Shawn... that made my decision very easy. Everything was completed in a neat and orderly fashion. Shawn was very patient throughout, taking the time to answer my frequent questions. He used a level throughout the install and took his time as a result, everything lines up and matches up with my existing breaker box, etc. Shawn was very careful, diligent, and a bit OCD about how straight everything was during our install, which I thought was great!! Shawn takes pride in his work and it shows! Call Shawn for a free estimate... Shawn knows his stuff and you will like him. He did a great job for us on two jobs - a backup/standby generator install and a replacement of my meter channel!! He also ran a new electrical line to an out-building at my mom's house. I have already recommended Shawn to anyone I know who mentions wanting to get a generator installed."
Response time10 mins
Recommended by100%of homeowners
Showing 1-10 of 48
Generator Install FAQs, answered by experts

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

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.

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

The Amherst, NY homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.