Generator Installation in New Hampshire & Southern Maine
Whole-home generator installation across the NH Seacoast, Lakes Region, and Southern Maine. Locally owned. Licensed electrician on every install.
Request Service Today
🐾 Every generator installation donates $100 to The Rusty Fund, supporting local dog rescues in Dover, NH.
Hear From Our Customers
Certified Installation, Backed for 10 Years
Generator installs aren’t a one-and-done product. The way the system is sized, wired, and tied into your home determines whether it actually works when you need it. We’re factory-trained and certified, which means every install is done to manufacturer spec and your warranty stays intact.
Every standby generator we install comes with a full 10-year extended warranty at no extra cost, plus our own lifetime craftsmanship guarantee on the electrical work. That’s a decade of factory coverage on the unit and a lifetime of accountability on the install, from a locally owned team you can actually reach.
We don’t disappear after the install. Warranty service, annual maintenance, and repairs all run through the same local team that put the generator in. Most generator companies hand off to a third party for ongoing service. We don’t.
Generators Starting Under $200/Month
A whole-home generator typically runs $10,000 to $15,000+ installed. Use the calculator below to see what monthly payments look like for your install. 0% APR for 12 months available for qualified customers through Wisetack.
Pre-qualifying takes about a minute and won’t affect your credit. Ask about financing when you request your quote.
Over 300 5-Star Reviews
Why Choose Us
Authorized Generac Dealer
We’re factory-certified by Generac, which means you get dealer-only pricing, access to exclusive promotions, and a full 10-year extended warranty that non-dealer contractors simply can’t offer.
Factory-Trained Technicians
Every generator we install is handled by technicians trained directly by Generac to meet manufacturer standards. Your installation is done right the first time, and your warranty stays intact.
10-Year Warranty Included
All of our automatic generator installations come with a free 10-year extended warranty giving our customers a decade of true peace of mind coverage.
Licensed Electrician on Every Job
Every generator installation involves your home’s electrical system. Unlike general contractors or dedicated generator companies, every job at Loyal Lab is backed by a licensed NH master electrician.
Generator Services We Provide
- Whole-Home Standby Generator Installation
- Portable Generator Hookup & Interlock Kits
- Automatic Transfer Switch Installation
- Generator Sizing Consultation
- Generac Generator Sales
- Generator Maintenance & Annual Service
- Generator Repair & Troubleshooting
- Load Management Systems
- Generator Monitoring Setup
- Generator Replacement & Upgrades
- Emergency Generator Service
- 24/7 Generator Monitoring
What areas do you serve for generator installation?
We install generators across the NH Seacoast, including Dover, Portsmouth, Rochester, Somersworth, and surrounding towns. We also serve the Lakes Region including Wolfeboro, Wakefield, Alton, and Ossipee, and we cover Southern Maine including Berwick, South Berwick, Eliot, Kittery, York, and Ogunquit. We hold electrician licenses in both New Hampshire (Master #13956) and Maine (#MS60021263), so we can install legally on both sides of the border.
How much does a whole-home generator cost?
Generator pricing depends on the size of your home and your power needs. We provide free consultations to help you determine the right system and give you clear, upfront pricing before any work begins.
How long does generator installation take?
The physical installation typically takes 1-2 days. However, the overall process involves coordinating with your utility company, gas provider, and local inspectors, which can extend the timeline to about a week from start to finish. We manage all of that coordination for you.
What size generator do I need for my home?
That depends on what you want to power during an outage. We do a load calculation during your consultation to determine the right size. Options range from partial-home coverage to whole-home systems that power everything automatically.
Do you offer generator maintenance?
Yes. Regular maintenance keeps your generator ready when you need it. We offer annual service plans as well as our Generator Watchdog monitoring program for 24/7 peace of mind.
What is the difference between a portable generator and a standby generator?
A portable generator requires manual setup and connects through an interlock kit or transfer switch. A standby generator is permanently installed and turns on automatically when the power goes out. No action needed on your part.
Are you an authorized Generac dealer?
Yes. Loyal Lab Electric & Generators is a factory-certified Generac dealer. That means factory-trained installation, access to dealer-only pricing and promotions, and a full 10-year extended Generac warranty on every install. We’re also fully licensed and insured electricians, so your entire installation from the generator to the electrical panel is handled by one qualified team.
Do you offer free estimates?
Yes, we provide free quotes on all residential electrical work. Call us or fill out the form above and we’ll get back to you within 24 hours.
Are you a local company or a franchise?
Loyal Lab Electric & Generators is 100% locally owned and operated right here in Somersworth, NH. We’ve been serving the Seacoast since 2018 and have no affiliation with any franchise or corporate entity. When you call us, you’re supporting a local business and working directly with our team.
Do you offer financing?
Yes. We offer financing through Wisetack and Klarna, with options ranging from short-term 0% interest to longer terms with lower monthly payments.
350 NH-108 Unit 6A Somersworth NH 03878
© 2026 All rights reserved. Loyal Lab Electric & Generators