*The Angi rating for Generator Install companies in Garrison, 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 Garrison, 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 May 05, 2026
Serving Garrison, NY and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"Excellent job,would highly recommend Frank for all of your generator repairs and installation"
+29
Serving Garrison, NY and surrounding areas
Approved
In business since 1985
Free estimates
Warranties offered
"Our electrician, Jeff Uffer, repaired the sockets and the switch and went over the rest of the job with us. He scheduled a second visit to complete the installations because we had not ordered all of the correct detectors for the job."
+21
Serving Garrison, NY and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"We hired Pat and his team to install some new outlets, replace some old 2 prong outlets and install and wire a new ceiling fan. He and his team had the whole project completely finished successfully within 8 hours. We will be repeat customers!"
+7
Serving Garrison, NY and surrounding areas
Approved
In business since 1999
Free estimates
Emergency services offered
"Never did work I wanted which was to fix generator"
Serving Garrison, NY and surrounding areas
Approved
In business since 2025
Free estimates
Credit card accepted
"This was my first project of this sort so I didn’t know what I didn’t know. Amped Up took their time to explain what needed to be done and my options for getting it done. I had several estimates but based on the information I received and transparency about options and cost associated with those options, Amped Up was the way to go. Very pleased with the work. Quick, efficient, and clean. I will definitely hire again."
Serving Garrison, NY and surrounding areas
Approved
In business since 2007
Free estimates
Credit card accepted
"Installing a PV system is a minefield of regulations and paperwork. Ed and Gerry at TRES have experience navigating this process and were able to take care of all the paperwork. While we had some bumps in the road during the installation, TRES was always willing to do what was necessary to make things right. I'd definitely recommend TRES if you are looking for a PV system."
Serving Garrison, NY and surrounding areas
Approved (Corporate)
In business since 1987
Free estimates
Emergency services offered
"This generator needs to be fixed later tomorrow."
+1
Serving Garrison, NY and surrounding areas
Approved
Customers say: Quality work
"EMANUEL did a great job installing my window coverings. He was efficient and did an excellent job. He was pleasant and Thought outside the box. I would definitely use his services again"
Serving Garrison, NY and surrounding areas
Approved
In business since 1992
Free estimates
Customers say: Quick response
"This project went flawlessly, all work was completed quickly and efficiently. Highly recommend Doyle Electric,Inc."
Serving Garrison, NY and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
We have the experience and dedication to get the job done right! Specializing in Electrical services; We guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!\n
+5
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.
