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Avatar for GenShield LLC
GenShield LLC
5.0(
7
)
Fixed Generator - Repair

Serving Rosendale, NY and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We specialize in generator service and repair and provide unmatched customer service! You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!\n

9 neighbors recently requested a quote
Avatar for Ty Solar Electrician
Ty Solar Electrician
4.9(
27
)
Fixed Generator - Install

Serving Rosendale, NY and surrounding areas

Approved

In business since 2015

Offers commercial services

Customers say: True professional

Welcome to TY Solar Electrician, we are an elite electrician team, 50% of our team members is master electrician. We offer serious electrician services that master electrician license is required. The company is still young but the main team member has years of experience to provide you our excellent services. We proud about and garenteed all our jobs.\n

Main Service Panel completed
Service panel
Service upgrade
The old meter
Old installation

+4

7 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Least Resistance Electrical Contracting LLC
Least Resistance Electrical Contracting LLC
5.0(
14
)
Fixed Generator - Install

Serving Rosendale, NY and surrounding areas

Approved

In business since 2025

Emergency services offered

Warranties offered

"When I placed a request for the installation of two outlets on Angie's list, Steve got in touch right away but wasn't overly pushy either [which happens sometimes]. Between the three weeks I first spoke with him and the job, he was professional, informative, and responded to texts quickly and I knew exactly what to expect on-site as well as the cost. He sent pictures and cost of a similar job to help explain the work and the estimate. Steve identified some other issues with my electrical panel and made some small fixes--without increasing the cost of the job--and made some recommendations for me to consider in the future. He was courteous, professional, and seemed to care about the work and about communicating what he was doing and why. I would definitely turn to him first for my next job."
Let There Be Light!
Sub Panel
Early Stages of Electrical Rough In.
4 Gang Switch Box
Sub Panel Service Entry

+17

6 neighbors recently requested a quote
Avatar for JSP Home Services
JSP Home Services
4.0(
147
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Rosendale, NY and surrounding areas

Approved

In business since 2006

Free estimates

Customers say: Quick response

"Installed new boiler, indirect hot water heater, and rebuilt our well water system adding conditioning and softening. We have acidic well water that has been a problem. Now, everything has been corrected and works great. The new boiler is smaller and quieter. Very professional and completely trustworthy."
Wall Mount Shower
Custom Outdoor Shower
Finished Shower in Bathroom Renovation
Rough plumbing in a Renovation
High Efficiency Heating system with Indirect

+7

Response time6 days
191 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for JSP Home Services
JSP Home Services
3.9(
140
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Rosendale, NY and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

"5++++Rj Mazzucca is amazing. Awesome salesman, awesome craftsmanship, went above and beyond. Was happy how quickly someone got out here to look at. Within hours of me calling and by the next day installed. I know I could have got a cheaper price, but was afraid it would not have been done in a timely manner. This is a 1979 mobile home and everything is old and turns into a project when replacing things. Rj did an excellent job."
JPS
17 neighbors recently requested a quote
Recommended by86%of homeowners
Showing 1-10 of 49
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.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

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.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

The Rosendale, NY homeowners’ guide to generator installs

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