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TRUSTED BY HUDSON, NH HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon37
    Verified generator installs reviews

Find Generator install pros in Hudson

John P. Tierney III
4.9(
79
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Hudson, NH and surrounding areas

Approved

In business since 1988

Customers say: Quick response

"Quality, affordability and professionalism at it's finest. I needed a panel upgrade for my generator, and an outlet installed outside near my basement door. A true professional, John arrived early, finished quickly and cleaned up after the job so well I couldn't tell any one have had been at my house. Clear and concise explanation of the job, the best price by far, and a friendly attitude. I give John my highest recommendation."
Response time8 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Krafton Electric, LLC
Krafton Electric, LLC
4.6(
121
)
Portable Generator - Install

Serving Hudson, NH and surrounding areas

Approved

In business since 1990

Free estimates

Customers say: True professional

"I have to say that David Krafton is an excellent electrician. I. Called him about a. light. Over. My sink that I could not fix by replacing the bulbs. He came out and told. Me the light was not working, as it was shorted out. He then went and bought me a new light and installed it. It works get and is so much brighter the the previous one. Thank you David I will be calling you again to do other work for me. Loraine in Bedford N.H."
kitchen renovation
kitchen renovation
existing 100 amp service panel
old and existing circuit breaker electrical panel
existing

+5

Response time1 day
3 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Electrical & Security Solutions, LLC
Electrical & Security Solutions, LLC
5.0(
13
)
Fixed Generator - InstallFixed Generator - Repair

Serving Hudson, 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%
7 neighbors recently requested a quote
Avatar for Wilson Brothers Heating & Air Conditioning Inc
Wilson Brothers Heating & Air Conditioning Inc
4.5(
160
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+2 more

Serving Hudson, NH and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"It was a absolute pleasure working with the Wilson Brothers team from sales, site planning and install. The install and electrical teams were very professional and demonstrated in depth knowledge of the product and their craft. They arrived at the time specified and worked very neatly and in an organized fashion. We would absolutely recommend Wilson Brothers for any Heating/AC needs."
Three of the five heads are marked by the numbers in the blue circle. On the inside of the house is where you will find the mounted units. The slim ducts run alongside the white arrows and will eventually be covered to match the exterior of the house.
The slim ducts in the basement ceiling that connect from the branch box all the way to the 5 different heating and cooling units. These will be covered by the ceiling tiles once the job is finished.
3 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Hewson Electric LLC
Hewson Electric LLC
5.0(
10
)
Portable Generator - Install

Serving Hudson, NH and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"I had a great experience with Hewson Electric! They were professional, friendly, knowledgeable, and made sure everything was done correctly. They were responsive, showed up when they said they would, and took the time to explain everything. I really appreciated the quality of their work and how easy they made the whole process. I would definitely recommend Hewson Electric to anyone looking for reliable electrical work!"
Stair tread lighting
Stair tread lighting
Stair tread lighting
Stair tread lighting
4 neighbors recently requested a quote
Avatar for The Speedy Sparky LLC
The Speedy Sparky LLC
5.0(
8
)
Fixed Generator - Install

Serving Hudson, NH and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

"He did a great job great with communicating and explaining the process everything went smoothly I was impressed with the detail he put into the project will definitely be using him on future projects"
Camper outlet & breakers
Camper outlet & breakers
Response time11 hrs
Response rate90%
1 neighbors recently requested a quote
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Generator Install questions, answered by experts

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

Natural gas and electricity rates vary significantly based on location, and pricing can change over time, too. It’s possible that in locations where natural gas is particularly inexpensive, it will cost less than grid-based electricity will. However, you should also factor in the generator’s initial costs and maintenance needs, as well as its noise level and if it can comfortably power all your home appliances.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

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.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

The Hudson, NH homeowners’ guide to generator installs

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