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Avatar for Generator Supercenter of New Hampshire
Generator Supercenter of New Hampshire
4.8(
35
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Hill, NH and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"The installation was performed ahead of schedule and was completed in just a few hours. The installers were friendly and professional. We did have a bit of an issue with some damage to our lawn, however I contacted the company (Rich M) and they responded immediately, did a great job and did so no hassle whatsoever. I would recommend this company to anyone who is in need of a generator."
22KW Installation
18KW Installation
Preparation for the day
Photos
Response time1 day
Response rate98%
100 neighbors recently requested a quote
Avatar for Electrical & Security Solutions, LLC
Electrical & Security Solutions, LLC
5.0(
13
)
Fixed Generator - InstallFixed Generator - Repair

Serving Hill, NH and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"Tyler and his crew were amazing! Professional, on time, great communication, and the work is top notch! From first visit to get an estimate to cleaning up the job site, perfect! Thank you and highly recommend to anyone that is looking for electrical work!"
Landscape lighting
Landscape lighting
Landscape lighting
Landscape lighting
Landscape lighting

+10

Response time7 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for Preferred Electrical Services, LLC
Preferred Electrical Services, LLC
4.6(
16
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business

Serving Hill, NH and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

"Preferred Electric came right out to provide me with an estimate, which was lower than others and he seemed professional, so I hired him. He was able to perform the work within 2 weeks. He came and did the work himself. He installed the bath fan and kitchen curciuts as requestd. I then had him come back to install the smoke and CO2 Alarms in the house."
Response time7 hrs
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Willett Electric, LLC
Willett Electric, LLC
5.0(
2
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Hill, NH and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

Willett Electric LLC is committed to excellence in every aspect of our business. We uphold a\nstandard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is\nthe quality of service we bring to our customers. We have accurate knowledge of our trade\ncombined with ability is what makes us true professionals. Above all, we are watchful of our\ncustomers' interests, and make their concerns the basis of our business.

Kitchen remodel
Bathroom Reno’s
Bathroom Reno’s
Bathroom Reno’s
Bathroom Reno’s

+14

Avatar for Brens Electric LLC
Brens Electric LLC
5.0(
1
)
Generator - Install - For BusinessPortable Generator - Install

Serving Hill, NH and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

We bring years of proven experience and a strong work ethic to every project we undertake. As a fully licensed and insured electrical contractor, we combine technical expertise, attention to detail, and strict compliance with all applicable electrical codes and safety standards. Our work is performed with professionalism, precision, and accountability. Whether managing complex electrical systems or providing routine maintenance, every task is completed with a focus on quality, reliability, and long-term performance. Our goal is to build lasting relationships built on trust, consistency, and exceptional service.\n

800A Service Upgrade
800A Service Upgrade
7 neighbors recently requested a quote
Avatar for Direct Electric, LLC
Direct Electric, LLC
5.0(
2
)
Generator - Install - For Business

Serving Hill, NH and surrounding areas

Approved

In business since 2022

Free estimates

Offers commercial services

Direct Electric LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

LED Lighting
LED Lighting
LED Lighting
LED Lighting
LED Lighting

+24

Response time3 hrs
Response rate91%
3 neighbors recently requested a quote
Showing 1-10 of 47
Generator Install questions, answered by experts

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

The Hill, NH homeowners’ guide to generator installs

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