Powers Guaranteed Services, a standby generator provider in Swanzey, NH, has been serving residential and commercial clients across New England since 1994. They offer complete generator sales and rental services, ensuring homes and businesses are protected from power loss. Customers can expect clear communication, high-quality products, and reliable electrical and mechanical services. Their licensed and EGSA-certified service technicians are highly trained and attentive, working with budgets and inspecting sites to find the best standby generator. Technicians have been praised for being professional, friendly, and knowledgeable, performing yearly maintenance with an amazing work ethic and attention to detail, even in extreme conditions. They provide detailed reports on generator conditions and tests performed. Powers Guaranteed Services also offers outstanding daily monitoring and scheduled service, ensuring optimal generator performance. Their installation crews are dedicated, expert, and friendly, delivering excellent quality work.
The tech performed the work in a timely manner. He was friendly and considerate. The report is very detailed and includes pictures.
December 2025
Powers generator sent Nathaniel to diagnose and service my 1994 Koehler generator. Nathaniel was professional, friendly and absolutely knew his job well! It was refreshing to see a very professional person representing Powers generator service!
December 2025
The technician performed the yearly maintenance professionally and followed up with a report of the condition of all parts of the generator and the tests performed.
