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.

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🐾 Every generator installation donates $100 to The Rusty Fund, supporting local dog rescues in Dover, NH.

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Hear From Our Customers

       
 5.0
 5.0
 Top Rated Service 
   Verified by Trustindex  Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
 
 
 
 
 
   
 
 
      Posted on Google  
   
   Karen Woodman 
 1 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Troy came right away and trouble shot our issue with a burned out kitchen light. It turned out to be a bigger job than expected but he remained pleasant and completed the job in a timely manner. I would definitely called them again if I need any electrical work done.
  
 
     Posted on Google  
   
   Livin'-Large 
 7 days ago
 
 
 Trustindex verifies that the original source of the review is Google. I contacted Loyal Lab about doing all the wiring in my new (detached) garage.  They responded very promptly to my initial request for a quote.  I met with Clay, we went over the entire scope of the job, discussed many of the details, he took notes, returned to his office, and provided a quotation that same day.  I thought the quoted price was reasonable and acceptable.  (I did not get a second quote, but rather based my decision on previous discussions with two other electrical contractors.)  Clay's estimate of when the job would start and the duration was much better than what I had heard from other contractors in the area.  The job took about half a day longer than originally expected - that was not a problem and it was reasonable.  The crew that performed the work showed up at a decent hour each day, worked a full day, cleaned up at the end of each day, and they conducted themselves professionally.  The crew contacted me to quickly resolve a few questions during the installation.  The installation went pretty smoothly.  Electrical inspections went very well.  The quality of work was very good, in my opinion.  All in all, my experience with Loyal Lab was much better than any other contractors (electrical or other trades) on the construction of building my new garage.  The quote was sufficiently detailed, the price was acceptable, the schedule was excellent, and the results were very good.  I'm happy.  Yes, I would recommend talking with them for your next electrical project. [Note that Loyal Lab did not install the "service" (meter or breaker box).  That was done by another electrical contractor that I would not hire to do what Loyal Lab did.]
  
 
     Posted on Google  
   
   Susan Mistretta 
 8 days ago
 
 
 Trustindex verifies that the original source of the review is Google. I had several small electrical jobs that needed to be done.  They were quick to respond to my initial request, came same day to issue a quote, and one week later completed the job.  They know their job and I love the results.
  
 
     Posted on Google  
   
   Mary Curtis 
 14 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Definitely on the expensive side, but Troy and Ben were right on time, very friendly, and took care of our light switches/ceiling fans quickly. They were so sweet to our son who had lots of questions and they even left him some stickers!!
  
 
     Posted on Google  
   
   Jeanne Degen 
 15 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Troy was On time, very professional electrician with great people skills. Reasonable price and excellent service. Highly recommend this company
  
 
     Posted on Google  
   
   James Hall 
 16 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Highly recommend! Professional technician’s.
  
 
     Posted on Google  
   
   J Poulin 
 17 days ago
 
 
 Trustindex verifies that the original source of the review is Google. What a difference going with a locally owned company.  I had the Mr. Electric, Heritage, etc experience and wanted to find someone local who wasn't going to upsell, try to talk me into a service contract or try to rip me off.  Troy was superb, arrived right on time and he was able to diagnose the issue in short order and made sure everything was working before leaving.  The price was very reasonable and he even explained that all his work came with a one year warranty.  Highly recommend and would definitely use them again.
  
 
     Posted on Google  
   
   Cyn Bir 
 23 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Friendly, efficient and reasonable prices. Justin came in and did the job beautifully!
  
 
     Posted on Google  
   
   Matthew Rossiter 
 27 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Justin and his partner(whose name I forgot, I apologize) were outstanding! They understood the work I was looking to have done, gave me a very reasonable quote, and were able to finish the project the same day. In addition, they willingly changed a very high up lightbulb in my garage for no extra charge. I will definitely be using their services in the future for any other electrical needs!
  
 
     Posted on Google  
   
   Chris Hewins 
 27 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Troy was exceptional today on his service call to my house. He walked me through everything as he worked, explaining what he was doing and why, giving me a real peace of mind - the insight was genuinely helpful for any future projects, as well. Quality work, clear communication and a friendly, patient approach throughout. I highly recommend Loyal Lab and we'll be calling them again for future project.

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