*The Angi rating for Generator Install companies in Denmark, 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 Denmark, 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 14, 2026
Serving Denmark, NY and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Free estimates
Emergency services offered
"Pretty straight forward. Establish size,generator. Installed in an afternoon. Work professional and neat."
+9
Serving Denmark, NY and surrounding areas
Approved
In business since 1998
Emergency services offered
Warranties offered
"We are really happy with the work. CDE provided great advice to position new fixtures plus what to look for in selecting and placing the lights, outlets and wiring to minimize work to patch ceiling after the install. Definitely knowledgeable and courteous. CDE gave prompt estimates and stayed on budget and schedule. We will definitely use CDE again."
Serving Denmark, NY and surrounding areas
Approved
In business since 2015
Free estimates
Customers say: Quality work
"Very courteous and professional. Answered all questions and did a great job. Work done; full replacement and upgrade of electric panel to 200amp."
Serving Denmark, NY and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"Immediate response to our inquiry. Reasonably priced and extremely willing to accommodate our needs -willing to make two trips to the residence as we wanted the old water heater pulled one day so that we could access and paint the small utility room prior to installing the new water heater the next morning"
+4
Serving Denmark, NY and surrounding areas
Approved
In business since 2001
Free estimates
Warranties offered
"Great installation, very efficient. I surely would recommend them."
+79
Serving Denmark, NY and surrounding areas
Approved
In business since 1971
Free estimates
Emergency services offered
"Within minutes after submitting an inquiry, Seamus contacted me to find out specifics of my project and although he provided an estimate, he was receptive to coming out for a site visit before I committed. Edward came for the preliminary site visit and afterwards, I accepted their proposal. Cliff, the installer, communicated with me with scheduling and was very professional and easy deal with. Edward performed an inspection after install to make sure everything was done properly. The people representing this company seem very knowledgeable about their work and is backed up by generations of experience."
+10
Serving Denmark, NY and surrounding areas
Approved
In business since 2000
Free estimates
Customers say: Terrific value
"Vanepps construction was the most strait forwarded of 5 contractors I considered install new siding on my home. Easy to get in touch with and very happy with the the work and value. Hiring in the future for upgrades."
Serving Denmark, NY and surrounding areas
Approved
My name is Dan I have been working as a carpenter for a local union but decided to go different route in life. I work with my brothers on houses and we Do It All. No job is too big or too small. From small things like furniture install to stripping down your house completely and remodeling it we can Do It All.
Serving Denmark, NY and surrounding areas
Approved
In business since 2020
Free estimates
Small jobs welcome
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. Give us a call today, we look forward to earning your business!
Serving Denmark, NY and surrounding areas
In business since 1976
Free estimates
Emergency services offered
"Astar is always on time. They worked efficiently and leave the work area very clean. Installation was done in one day."
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 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.
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
Portable generators ensure your essential appliances and electronics stay powered during an outage. Learn how to hook up a generator to your house.
Before installing a fixed generator, think about your use and space. Review these backup generator questions to prepare for a talk with your contractor.
Installing a portable generator can power key appliances during outages. Learn about the best backup generator questions to discuss with a pro.
