*The Angi rating for Generator Install companies in Roscoe, 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 Roscoe, 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 June 06, 2026
Serving Roscoe, NY and surrounding areas
Approved
In business since 2019
Free estimates
Emergency services offered
"Pretty straight forward. Establish size,generator. Installed in an afternoon. Work professional and neat."
+42
Serving Roscoe, NY and surrounding areas
Approved
In business since 2025
Free estimates
Credit card accepted
"Kyle is the consummate professional: an expert electrician who arrives at the scheduled time, works efficiently and thoroughly, and leaves without a trace of debris to clean up. His knowledge and knowledge-how, coupled with an easy-going, courteous manner, make him my ‘go-to’ electrician. Kyle is simply among the best of the best."
Serving Roscoe, NY and surrounding areas
Approved
In business since 2007
Free estimates
Emergency services offered
"Hired HomePro Electric to install a transfer switch for a portable generator. Erik did a great job. Showed up on time. Did an excellent job and explained how to switch our electric panel from the grid to the generator really clearly. I will definitely hire him again for any future electrical work that I need."
+11
Serving Roscoe, NY and surrounding areas
Approved
I am an electrician that truly enjoys what I do\nLicensed and insured in NY, NYC,NJ, PA\nCustom residential electrician
Serving Roscoe, NY and surrounding areas
In business since 1976
Free estimates
Emergency services offered
"Astar's plumber arrived on time, kept the area neat & clean throughout removal & installation of our two units. Furnace & air conditioner."
Serving Roscoe, NY and surrounding areas
In business since 1990
Free estimates
Emergency services offered
"Provided generator service that other providers were unable or unwilling to do. After some initial scheduling and parts issues, they did a great job."
Serving Roscoe, NY and surrounding areas
In business since 2007
Free estimates
Emergency services offered
"Great job installing my 50amp Manual transfer switch for generator hook up"
Serving Roscoe, NY and surrounding areas
In business since 2006
Free estimates
Emergency services offered
"Electrical work was done well in advance of the roofing job. Electrician returned at the end of the ice melting cable installation job to make an alteration to the outlets which was a decision made during the roofing and installation job. Electrician was very neat and accomodating.
"
+15
Serving Roscoe, NY and surrounding areas
In business since 2000
Free estimates
Emergency services offered
"they did a nice neat job. system worked great. would definitely recommend to others."
+50
Serving Roscoe, NY and surrounding areas
In business since 2009
Free estimates
Emergency services offered
"Flagstone came and replaced wood flooring in three rooms that had been damaged by water. I explained that this would need to be completed quickly and they understood my situation and completed the job. I also had Flagstone complete some small electrical projects while onsite. These guys really are a company that can take care of all my home needs. I plan on having Flagstone complete more work for me in the spring."
When maintained properly, a whole-house generator can last up to 20 years. Costs to maintain and repair generators vary by location and type of generator, but you can expect to pay about $150 to $300 per year for annual generator maintenance checks. An experienced generator service technician will inspect your generator’s engine filter, starting mechanism, fuel, lubrication, and coolant levels to keep your generator in good working condition for as long as possible.
Installing a whole-house generator costs about $5,000 on average. Prices range from $1,550 to $8,500, depending on size, brand, fuel type, and assembly. The size of your whole-house generator is the most significant cost factor, with large homes with high energy demands costing the most to power. Types of whole-home generators include:
Portable generators with 1kW–7.5kW capacity: $500–$2,000
Partial generators with 9kW–20kW capacity: $2,000–$6,300
Whole-house generators with 22kW–48kW: $5,000–$18,000
When choosing the right size generator for your needs, consider a few items to help calculate the wattage you’ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:
Refrigerator: 600 watts
Large dehumidifier: 700 watts
Large window air conditioner: 1,400 watts
Water heater: 3,000 watts
Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running.
Here’s what you can run with different wattages and types of generators:
Portable generator:
2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers.
4,000 watts will keep two large appliances operating and a few smaller devices.
8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.
Partial to whole-house generator:
20,000 watts and above will make it seem like your home’s power is still on.
The value of installing a whole-house generator is that your home has guaranteed power, even if the power grid in your area is down. Whether a whole-house generator is worth installing in your home depends on how often you use it, your home’s location, and your lifestyle. For example, installing a whole-house generator is likely worth it if you:
Experience frequent or prolonged power outages
Work from home
Store a lot of cold food
Have a sump pump
Have a pump for well water
Use electronic medical devices
Live in a climate requiring heating or cooling
From average costs to expert advice, get all the answers you need to get your job done.
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
Natural gas generators are whole-home standby generators that are connected to your home’s natural gas line. The average cost for a natural gas generator is $12,000.
Generators should give you peace of mind, but you’ll only get that if your installer knows what they’re doing. Learn how to hire a pro and what red flags to look for.
Whole home generator installations require a professional hand. Read this guide to help you decide which generator is best for your home.
Wondering who to hire to install a generator? Consult this guide to learn who to hire to install a generator or a transfer switch.
