Whole Home Generator Installation In NH and Maine

Authorized Generac Dealer. 10 Year Bumper to Bumper Warranty Included.

Generac Authorized Dealer

What to Expect During Your Generator Installation

Loyal Lab Electric & Generators is an authorized Generac dealer installing whole home standby generators across the NH Seacoast, the Lakes Region, and southern Maine. Our master electrician and team have installed generators everywhere from coastal homes in Rye and Hampton to rural properties in Wolfeboro and Wakefield where outages run longest, through the Exeter area, and over the border into York, Maine under our Maine electrical license. Here is how our installation process works:

  • Site Assessment: We start with an on-site visit to walk your property and plan the install around your home. We go over where the generator will sit, the right size for your power needs, and your fuel supply options for natural gas or propane. We also determine the best location for the automatic transfer switch and flag any additional equipment the job calls for, like load management devices or a panel upgrade, so there are no surprises once the work begins.
  • Electrical Load Calculation: We calculate your home’s electrical load to determine the right size generator for your needs. This ensures your system provides reliable backup power without overloading during an outage.
  • Installation Planning: We create a detailed plan and handle all coordination with your utility company, gas or propane provider, and local permitting office. You don’t have to make those calls.
  • Generator Installation: We install using only manufacturer-approved materials and follow all Generac guidelines and NH electrical code. The physical install typically takes 1-2 days.
  • Testing and Commissioning: Once installed, we test the full system including the automatic transfer switch to make sure everything works exactly as it should. We walk you through how to operate and maintain your generator before we leave.

Want to learn more about sizing, permits, and what to expect throughout the process? Read our complete generator installation guide for a detailed breakdown.

Loyal Lab Electric team installing a Generac whole-home standby generator in NH

A True 10 Year Warranty, Included on Every Install

Generac’s standard coverage is a 5 year limited warranty, and the word limited is doing real work in that sentence. Not every component is covered for the full five years.

Every generator we install comes with Generac’s extended 10 year bumper to bumper warranty instead, at no additional cost. It is a true bumper to bumper warranty with full coverage on the unit, twice the length of the standard coverage, and it is not a promotion with an end date. It is simply how we do every install.

Here is the honest version of how that works. Any homeowner can buy the extended coverage directly from Generac at retail price. As an authorized dealer we get it at dealer pricing, and we use that savings to include it on every install instead of pocketing it. The aluminum enclosure that comes standard on every Generac unit is one reason these units hold up on coastal installs in towns like Rye and Hampton, where salt air eats steel hardware years early, and we back that with corrosion resistant hardware on our coastal work.

When you compare quotes, ask what the standard 5 year limited warranty still covers in year three. Then ask what happens in year six. The answers to both are why we include the 10 year.

Why Professional Installation Matters for Your Generator

A generator is a major investment in your home and it needs to be installed by a licensed electrician who knows what they’re doing. In New Hampshire, generator installations require electrical permits, utility coordination, and compliance with local building codes. Here’s why that matters:

Code Compliance: Every municipality in the Seacoast has its own permitting requirements. We handle all permit applications and inspections for generator installations in Dover, Portsmouth, Rochester, Somersworth, and surrounding towns so you don’t have to navigate that process yourself.

Under our Maine electrical license we also handle permitting on the other side of the border, including towns like York where the electrician’s affidavit is the oversight and the license on the truck matters even more.

Warranty Protection: Generac requires professional installation by a licensed electrician for any warranty to be valid. A DIY or handyman install can void your coverage entirely, leaving you exposed on an $8,000 to $18,000 investment. Installing with us goes further than protecting the standard coverage: as an authorized dealer we include the extended 10 year bumper to bumper warranty on every install at no additional cost, using our dealer pricing to cover what would otherwise be a retail purchase from Generac.

Safety: Generator installation involves high-voltage electrical connections, natural gas or propane fuel lines, and automatic transfer switches that must be wired correctly. Our team is led by a NH Master Electrician with over 20 years of experience. We do this work every week and we do it right.

We are an authorized Generac dealer serving the NH Seacoast and southern Maine. Our certified technicians handle complete system setup including automatic transfer switch installation, panel upgrades, and all electrical connections.

Generator installation in Wolfeboro, NH
Loyal Lab owner Eric reviewing the Generator Watchdog monitoring dashboard, showing a live status map of customer Generac generators across New Hampshire,

Generator Watchdog: 24/7 Monitoring for Your Peace of Mind

Most generator companies install your unit and you don’t hear from them again until something goes wrong. We do it differently. Our Generator Watchdog program connects your generator to the monitoring dashboard in our Somersworth office, so it checks in with us around the clock. If your system reports an issue, we know about it before you do and we’re already working on a solution.

Members get 24/7 monitoring, priority service when outages hit, and annual maintenance included, all for $39 a month. No more guessing whether your generator ran its weekly exercise cycle. No more forgetting to schedule maintenance. We handle all of it.

For homeowners across Dover, Portsmouth, Rochester, and the Seacoast who depend on their generators through ice storms and nor’easters, Watchdog is the difference between hoping your backup power works and knowing it will. See how it works, what’s included, and exactly what it costs on the Generator Watchdog page.

Backup Generac generator cleared of snow during a New Hampshire winter.

When Is a Standby Generator Worth It?

If you live in New Hampshire or southern Maine, you already know that ice storms, nor’easters, and high winds can knock out power for hours or even days. Homeowners across the Seacoast, and especially in Lakes Region towns like Wolfeboro and Wakefield at the end of long distribution lines, deal with outages more often than most people realize. Here is when a standby generator makes sense:

Frequent Power Outages: If your neighborhood loses power multiple times a year, a standby generator eliminates the stress and disruption. It kicks on automatically within seconds of an outage, no extension cords, no trips to the garage, no waiting.

Medical Equipment: If anyone in your home relies on powered medical equipment like CPAP machines, oxygen concentrators, or refrigerated medication, a generator isn’t a luxury. It’s a necessity.

Well Water: Many homes across the Seacoast are on private wells. No power means no water, no toilets, no showers. A generator keeps your well pump running so you don’t lose water during an outage.

Home Office: If you work from home, even a few hours without power means lost productivity and missed deadlines. A standby generator keeps you connected and working.

Protecting Your Home: Power outages in winter can mean frozen pipes, lost food in the fridge, and a house that drops to dangerous temperatures. A generator keeps your heat, refrigerator, and critical systems running no matter what.

Never Lose Power Again

Homeowners across New Hampshire and southern Maine lose power every year to ice storms, high winds, and aging utility infrastructure. When the power goes out, the clock starts ticking on spoiled food, frozen pipes, dark rooms, and uncomfortable temperatures.

A standby generator changes that entirely. It monitors your utility power 24/7 and kicks on automatically within seconds of an outage. You don’t have to be home. You don’t have to do anything. The lights stay on, the heat keeps running, and your family stays comfortable while your neighbors are digging out flashlights.

A generator also protects your home from the damage that comes with extended outages. Power surges when electricity is restored can fry electronics, appliances, and sensitive equipment. A standby generator with whole-home surge protection keeps your power stable and your belongings safe.

We offer free in-home consultations across our full service area, from the Seacoast to the Lakes Region and into southern Maine. We will assess your home, walk you through the options, and give you an exact price with no pressure and no surprises.

If you already have a generator, make sure it’s ready when you need it. Our guide to emergency generator readiness in Strafford County covers the maintenance steps that keep your system reliable year-round.

Every generator we install contributes $100 to The Rusty Fund, supporting local dog rescues across the NH Seacoast through our partnership with Pope Memorial Humane Society in Dover.

loyal lab van

Frequently Asked Questions About Generator installation

How Long Does Installation Normally Take?

While the actual installation process only takes 1-2 days, depending on coordination with utility companies and fuel providers, the entire process (including the planning stages) from start to finish can take 1-4 weeks.

Local permits are typically required for generator projects. Loyal Lab Electric & Generators handles all permit applications and ensures your installation meets all local building codes.
Professional installation by a licensed electrician is required by most manufacturers to maintain warranty coverage and ensure safe operation of your whole system.

Absolutely! During your free in home generator consultation we will go over all the options. Including size, location and helpful add ons.

Yes we do! We have a financing partner that offers a variety of different payment options.

Most whole-home generator installations across NH and southern Maine fall between $8,000 and $18,000 depending on the size of the generator, your home’s electrical needs, and any site-specific factors. We provide a free in-home consultation where we assess your needs and give you an exact price with no surprises.

Yes to both. Generac’s standard coverage is a 5 year limited warranty, and limited means not every component is covered for the full five years. The extended 10 year warranty is a true bumper to bumper warranty with full coverage on the unit, and we include it on every generator we install at no additional cost. It is not a promotion with an end date. The coverage itself can be bought from Generac at retail by anyone; our dealer pricing is what lets us include it on every install instead of selling it as an add on.

That depends on what you want to power during an outage. During your free consultation, we perform a load calculation to determine the right size for your home. Some homeowners want to power everything. Others just want the essentials like heat, refrigerator, well pump, and lights. We’ll walk you through the options so you can make the best decision for your budget and needs.

We are an authorized Generac dealer, which means we can offer the full Generac product line with factory-backed warranties. Generac is the most trusted name in home standby generators and the brand we recommend for reliability and parts availability.

We install generators throughout New Hampshire including the Seacoast, the Exeter area, and Lakes Region towns like Wolfeboro and Wakefield, plus coastal towns including Rye and Hampton. Under our Maine electrical license we also install throughout southern Maine including York, Berwick and South Berwick, Eliot, Kittery and the Wells area.

Generator Watchdog is our monitoring and maintenance membership program. We monitor your generator 24/7 so if something goes wrong, we know about it before you do. Members also get priority service, annual maintenance visits, and peace of mind knowing their backup power system is always ready. Ask us about enrollment during your consultation.

What Our Customers Say About Us

Real stories from New Hampshire homeowners who’ve experienced the power of loyalty firsthand.

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Karen Woodman profile picture
Karen Woodman
1 days ago
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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.
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Livin'-Large
7 days ago
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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.]
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Susan Mistretta profile picture
Susan Mistretta
8 days ago
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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.
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Mary Curtis profile picture
Mary Curtis
14 days ago
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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!!
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Jeanne Degen
15 days ago
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Troy was On time, very professional electrician with great people skills. Reasonable price and excellent service. Highly recommend this company
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James Hall profile picture
James Hall
16 days ago
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Highly recommend! Professional technician’s.
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J Poulin
17 days ago
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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.
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Cyn Bir profile picture
Cyn Bir
23 days ago
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Friendly, efficient and reasonable prices. Justin came in and did the job beautifully!
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Matthew Rossiter
27 days ago
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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!
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Chris Hewins
27 days ago
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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.
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Why Choose Us

Why Choose Us

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Reliable

You can depend on us to for all of your electrical needs. We are here whenever you need us.

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Friendly Staff

Our friendly staff are happy to help with any electrical need you have.

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Safe Equipment

We use the safest and best equipment in the industry for every electrical project.

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Satisfaction guaranteed

We will exceed your expectations and guarantee satisfaction.