Homeowners in NH choose LTG Electric LLC for Generac generator installation because we prioritize safety, quality workmanship, and dependable service.
✔ Experienced residential electricians
✔ Certfied Generac installaler
✔ Installation complies with Generac Installation Requirements
*Generac may void warranty if not installed properly
✔ Gas and Electrical Code compliant installations
✔ Attention to detail
✔ Clear communication throughout project
✔ Reliable scheduling
✔ Free estimates
We help homeowners select the proper generator size and configuration based on electrical usage and backup power needs.
Power outages can happen at any time due to winter storms, high winds, or equipment failures. LTG Electric LLC specializes in Generac air-cooled and liquid cooled standby generator installations, helping homeowners and small businesses maintain power when they need it most.
We provide:
A professionally installed Generac standby generator helps protect your home from:
If you are considering installing a whole-house generator in Derry NH, Londonderry NH, Windham NH, Salem NH, Manchester NH, or surrounding towns, contact LTG Electric LLC for a free estimate.

When it comes to protecting your home from unexpected power outages, Generac has earned its reputation as the most trusted name in home standby generators. In fact, approximately 80% of homes equipped with standby generators rely on Generac, making it the clear leader across New Hampshire and the United States. Generac’s long-standing commitment to innovation, reliability, and performance has made it the preferred choice for homeowners looking for dependable backup power.
Generac standby generators are designed to automatically restore power within seconds of an outage, ensuring your home continues to operate safely and comfortably. Whether the outage is caused by severe winter storms, summer thunderstorms, or utility interruptions, a Generac generator helps keep essential systems running, including heating systems, well pumps, refrigerators, medical equipment, lighting, and communication devices. In New Hampshire’s changing weather conditions, reliable backup power provides peace of mind knowing your home and family are protected year-round.
One of the reasons Generac is the number one choice is their focus on advanced technology and ease of use. Generac generators feature automatic transfer switches that detect power loss and restore electricity without any manual intervention. Many models also include mobile monitoring capability, allowing homeowners and Generac Dealers to check generator status directly from their smartphone or computer using Mobile Link. This level of convenience ensures you are always informed that your backup power system is ready when needed.
Generac also stands out for its wide range of generator sizes, making it possible to select a system tailored to your home’s specific electrical needs. From essential circuit coverage to whole-house backup power, Generac offers solutions that provide reliable performance during extended outages. Their engines are designed specifically for generator use, helping ensure long-term durability and dependable operation even during prolonged power interruptions.
With strong product availability, industry-leading warranty options, and a nationwide network of trained and certified installers, Generac continues to be the most widely installed home standby generator in the country. Choosing Generac means choosing proven reliability, advanced technology, and the confidence that comes with installing the generator brand trusted by the majority of homeowners who invest in standby power.
For homeowners in New Hampshire, where storms and power outages are common, Generac provides a dependable solution to keep your home powered when it matters most.
Please reach us at Jesse@ltgelectric.net if you cannot find an answer to your question.
The cost to install an automatic standby Generac generator in New Hampshire varies based on several factors specific to your home and power needs. Most installations typically range between about $10,000 and $18,000, but the final price depends on:
A typical installation takes one day to install the automatic transfer switch, generator, wiring, and gas piping. A return trip is typical after electrical and gas inspections to back fill, final tie in of gas, and startup with testing.
Having an authorized Generac dealer and certified installer, like LTG Electric LLC, install your Generac automatic standby generator ensures the system is installed safely, legally, and to manufacturer standards, protecting both your investment and your home. It ensures the generator installation meets the electrical and gas codes, as well as Generac specifications. Improper installations can create fire hazards, suffocation hazards, and void Generac warranties.
LTG Electric LLC does not offer 24-hour emergency service. We value the importance of our technicians' time with their families and believe this balance allows us to provide the highest level of service during business hours. We respond to inquiries as promptly as possible and will make every effor to assist you quickly.
Yes, we are a licensed and insured electrical contractor. Our team consists of highly trained and experienced electricians who are committed to providing quality services.
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