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Avatar for Electrical & Security Solutions, LLC
Electrical & Security Solutions, LLC
5.0(
13
)
Fixed Generator - InstallFixed Generator - Repair

Serving Lisbon, 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%
16 neighbors recently requested a quote
Avatar for Evan Jones- Master Electrician, LLC
Evan Jones- Master Electrician, LLC
4.0(
22
)
Portable Generator - Install

Serving Lisbon, NH and surrounding areas

Approved

In business since 2004

Free estimates

Small jobs welcome

"Excellent customer service from start to finish. Electrician Eric and technician Johnathan were very professional and did an outstanding job. Nice to see young men practicing their trade so well. Highly recommend them without any reservations. Satisfied customer."
Response time3 days
Recommended by88%of homeowners
Avatar for SW WOOD LLC
SW WOOD LLC
5.0(
1
)
Portable Generator - InstallPortable Generator - Repair

Serving Lisbon, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

"I was very pleased with the work he did, he has a nice way of explaining things , I sure I will hire him again for other projects when needed he is a very pleasant person to deal with. Tank you Scott for being such a nice guy ."
15 neighbors recently requested a quote
Avatar for Power Moves Electric, LLC
Power Moves Electric, LLC
5.0(
11
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Lisbon, NH and surrounding areas

Emergency services offered

"From the very beginning to the end the experience was exceptionally good. The price was great, professionalism top-notch and the work was extremely high-quality. We knew exactly what to expect along the way and I would recommend them to anyone."
Recommended by100%of homeowners
Avatar for Vermont Generator Systems
Vermont Generator Systems
5.0(
1
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+4 more

Serving Lisbon, NH and surrounding areas

In business since 2008

Free estimates

Emergency services offered

Since 2004, Vermont Generator Systems has proudly supported the backup power needs of homes and businesses across parts of Vermont and New Hampshire. Our experienced team is with you every step of the way, from the initial site assessment to professional installation and ongoing maintenance. VGS has deep expertise in installing and servicing Generac generator systems.

Check out our Generic Generator Installations!
A collage of recent Generator Installations!
Response time6 hrs
Response rate100%
18 neighbors recently requested a quote
NH Generator Installers, Inc.
New to Angi
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Lisbon, NH and surrounding areas

In business since 2009

Free estimates

Credit card accepted

About NH Generator Installers (formerly Corr & Son's Electric) - Concord, NH\n\nNH Generator Installers is a team of motivated team members dedicated to providing top-quality power generator installations at competitive prices, including home generators and commercial electric generators. We are a professional, reliable, hard working generator distribution and installation company that takes pride in completing all jobs accurately and in a timely manner. \n\nWe are committed to establishing long lasting relationships with our customers by exceeding expectations, gaining trust through exceptional performance, unparalleled service, and honest and ethical business practices. We recognize that teamwork is essential in order to achieve successful project completion.\n

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Generator Install questions, answered by experts

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

Generators are safe to use as long as they are installed and operated correctly according to the manufacturer's recommendations. The most critical safety tips are to never use a portable or fuel-powered generator inside an enclosed space due to the risk of lethal carbon monoxide poisoning; always operate it outdoors where fumes can dissipate away from your home. Additionally, never attempt to connect a generator to your home’s electrical panel yourself—hire a professional to ensure the setup meets safety standards. Finally, avoid overloading the generator by not connecting more appliances than it is rated for, as this can damage your equipment or cause a fire.

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.

Potential benefits of using a natural gas generator include reducing your carbon footprint, lower likelihood of carbon monoxide exposure, budget-friendly operating costs, and low-maintenance, continuous fuel supply. Some possible drawbacks, though, include higher initial installation costs, dependency on a natural gas supply, and installation complexity. Keep in mind that pros and cons will vary based on the type and brand of natural gas 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. 

The Lisbon, NH homeowners’ guide to generator installs

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