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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 Jaffrey, NH and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Joey Knowles performed our annual maintenance for our generator. He was knowledgeable and exceptional in explaining all features of our generator and very thorough with his work. Thanks so much. Stephen and Deb Hughes."
22KW Installation
18KW Installation
Preparation for the day
Photos
Response time1 day
Response rate98%
100 neighbors recently requested a quote
Avatar for Pellerin Electric, LLC
Pellerin Electric, LLC
4.6(
84
)
Fixed Generator - InstallPortable Generator - Install

Serving Jaffrey, NH and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"They attended my call immediately and shown up to do the job as per schedule. All services was ok. However it tooks them a week or so for sendind a correct bill and it was a little pricy Considering what was done."
3 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Let It Glow Electric, LLC
Let It Glow Electric, LLC
4.6(
32
)
Portable Generator - Install

Serving Jaffrey, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"Justin did great job, intalled the hookup and the transfer switch for the portable generator. Worked in freezing temperature outside. The only downside was that the install was postponed few times because he was waiting for the parts"
Exterior
Kitchen
Main service
Transfer switch and main panel
Canopy recessed cans retrofit

+27

Response time1 day
3 neighbors recently requested a quote
Recommended by76%of homeowners
Monadnock Electric
4.8(
21
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Jaffrey, NH and surrounding areas

Approved

In business since 1977

Free estimates

Emergency services offered

"They came out on a Saturday (which they didnt have to do) and got everything installed and set up in a reasonable time and for a great price. I'll definitely be using them for my next project."
Response time9 hrs
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Brens Electric LLC
Brens Electric LLC
5.0(
1
)
Generator - Install - For BusinessPortable Generator - Install

Serving Jaffrey, 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
8 neighbors recently requested a quote
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Generator Install questions, answered by experts

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

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.

The Jaffrey, NH homeowners’ guide to generator installs

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