Top-rated generator install pros.

Get matched with top generator install pros in Wakefield, NH

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Wakefield, NH?

Select your specific project to find the pro for you.

Verified Reviews for Generator Install pros in Wakefield, NH

*The Angi rating for Generator Install companies in Wakefield, NH 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 Wakefield, NH 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 January 22, 2026

Find Generator install pros in Wakefield

Avatar for Generator Supercenter of New Hampshire
Generator Supercenter of New Hampshire
5.0(
15
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+2 more

Serving Wakefield, NH and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"The installation went flawless. There were 5 installers and everyone one was a professional and had it done in super time. Would recommend them to anyone looking for a generator."
Completed 22kW Generac Standby Home Generator Installation - With GenMon MobileLink installed, our 24/7 monitoring program which includes annual maintenance!
Automatic Transfer Switch Installed - shown on the left with the customers electrical panel on the right.
Additional Photos
Additional Photos
Additional Photos

+5

Response time3 days
Response rate100%
8 neighbors recently requested a quote
Request Quote
Avatar for Cote Electric, LLC
Cote Electric, LLC
4.9(
46
)
Fixed Generator - InstallFixed Generator - Repair

Serving Wakefield, NH and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1987

Free estimates

Credit card accepted

"Installation of a gas generator as electrical backup for sump pumps as I live in a flood zone,. This electrician found the problem and fixed it. Thoroughly professional."
Standby Generator installed in the back of family's home.
Generator Install
Generator Maintenance
Response time3 days
273 neighbors recently requested a quote
Request Quote
Avatar for Bob Daniels Electric
Bob Daniels Electric
4.5(
46
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Wakefield, NH and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"A very Honest person came to my home he was very pleasant. Came the same day I looked them up on home advisor. Price was excellent I would definitely use them again. Thank you Bob Daniels Electric. I will recommend your company and will call upon you for my three homes."
Untitled Gallery 1
Response time6 hrs
4 neighbors recently requested a quote
Recommended by97%of homeowners
Request Quote
Avatar for Loyal Lab Electric & Generators
Loyal Lab Electric & Generators
5.0(
5
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Wakefield, NH and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

Loyal Lab Electric & Generators is a locally owned electrical contractor serving Dover, Portsmouth, Rochester, and the NH Seacoast from our base in Somersworth, NH. Owner and NH Master Electrician Eric Hope has been in the trade since 2008 and founded this company in 2018. \n\nWe are an authorized Generac dealer with certified service technician's on staff, specializing in whole-home generator installation, electrical panel upgrades, EV charger installation, and electrical repairs. We serve residential customers across the NH Seacoast and southern Maine. NH Master Electrician License 13956. \n\nEvery job we complete donates to The Rusty Fund, supporting local dog rescues through our partnership with Pope Memorial Humane Society in Dover.

Past Projects
Past Projects
Past Projects
Past Projects
Past Projects

+13

24 neighbors recently requested a quote
Request Quote
Avatar for Mr. Electric of Southeast NH
Mr. Electric of Southeast NH
4.7(
91
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business

Serving Wakefield, NH and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"They were wonderful, did a great job!"
Lighting
EV Charger
Panel
200A Service
Kitchen Lighting

+1

Response time8 hrs
Response rate88%
5 neighbors recently requested a quote
Request Quote
Avatar for Electrical & Security Solutions, LLC
Electrical & Security Solutions, LLC
5.0(
13
)
Fixed Generator - InstallFixed Generator - Repair

Serving Wakefield, NH and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"I needed to swap out my old ventless oven hood with a new one plus I needed to upgrade a hall light fixture. Getting an appointment was easy and the team was great. The guys were so friendly and helpful, plus they were so efficient (in and out in 90mins) I would highly recommend their services and plan to tell my friends about them."
Landscape lighting
Landscape lighting
Landscape lighting
Landscape lighting
Landscape lighting

+10

Response time7 hrs
Response rate100%
16 neighbors recently requested a quote
Request Quote
Avatar for LaPlante Electric, Inc.
LaPlante Electric, Inc.
4.4(
71
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Wakefield, NH and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"Very professional and did our generator installation very efficiently."
Whole House Generac Generator 22 Kilowatt (KW)
Top View of a 22 Kilowatt (KW) Generac Generator
Internals of 22 Kilowatt (KW) Generac Generator
Back of 22 Kilowatt (KW) Generac Generator
200 AMP Whole House Transfer Switch

+8

Response time3 days
66 neighbors recently requested a quote
Recommended by98%of homeowners
Request Quote
Angell Electric
5.0(
20
)
Portable Generator - Install

Serving Wakefield, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Small jobs welcome

"We were very happy with the work.Eric was easy to work with. He installed a new 220 circuit and was able to fish it though the walls harmlessly whereas other electricians we talk with were going to tear up the drywall. Pricing was very reasonable. Highly recommend."
Response time2 days
9 neighbors recently requested a quote
Recommended by27%of homeowners
Request Quote
Avatar for PRIME SINE ELECTRIC, LLC
PRIME SINE ELECTRIC, LLC
5.0(
8
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Wakefield, NH and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

"I hired Prime Sine Electric LLC for a complete new electrical service and wiring on our 1937 home when purchased. It was in need of a complete gut-job. Spence did an amazing job bringing it up to today's standards. I mean, totally amazing transformation. Spence was professional the entire time through the quote process, customer service and final completion. He listened to our needs and gave input and helped us with planning the electrical needs of this old house. We can't recommend Spence enough and would hire him again in an instant."
21 neighbors recently requested a quote
Request Quote
...
Showing 1-10 of 58
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.

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.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

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. 

In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.

The Wakefield, NH homeowners’ guide to generator installs

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

See all articles