5 Electricians in Nashua, NH Who Actually Show Up and Get It Done

Nari Park
Written by
Nari Park
Alex Volkmann
Reviewed by
Alex Volkmann
Last edited: Aug 9, 2026

Finding a reliable electrician in Nashua, NH, can feel like a gamble. You need someone who picks up the phone, shows up on time, and delivers code-ready work without the guesswork. Whether you're dealing with flickering lights, planning a panel

The Nashua Electrical Contractor Landscape

Nashua's home and trade service market is competitive, with several family-owned and independent electrical contractors vying for your business. Many of these companies have decades of experience, with some tracing their roots back to the early 1900s. The demand for services like panel upgrades, EV charger installations, and whole-home electrical inspections continues to grow as homeowners prioritize safety and energy efficiency. When choosing an electrician, you're not just paying for labor; you're investing in peace of mind and code compliance. The best contractors in this area combine technical expertise with clear communication and transparent pricing.

How I Ranked These Electricians

To create this list, I evaluated each contractor based on five key factors: years of experience and reputation in the Nashua community, the breadth of residential and commercial services offered, customer feedback and online reviews, licensing and insurance credentials, and the clarity of their pricing and warranty policies. I also considered their responsiveness and availability for emergency services. The goal was to highlight electricians who not only do great work but also make the entire process smooth for you.

Here's a quick look at the top five electrical contractors in Nashua, NH, ranked from best overall to a solid choice for specific needs.

ProviderBest For
Gagnon's Electrical Service24/7 emergency electrical service
Stellos ElectricDesign/build and commercial electrical projects
Johnson's Electric SupplyHistoric expertise and lighting fixture selection
Electrical Contractor | High Voltage Electric INCResidential electrical repairs and panel upgrades
Loren Morse Electrical ServiceKnob and tube removal and code upgrades

The Top 5 Electrical Contractors in Nashua, NH

#1 Gagnon's Electrical Service

Screenshot of Gagnon's Electrical Service website A screenshot of the Gagnon's Electrical Service website.

Gagnon's Electrical Service is a third-generation family-owned business that has been serving Nashua since 1958. They offer 24/7 emergency service and have over 100 five-star Google reviews, which speaks volumes about their reliability. Their services cover everything from outlet and switch installation to panel upgrades and EV charging stations. They emphasize showing up on time and providing clear billing, which is exactly what you want when you need electrical work done. If you need a trusted electrician who answers the phone day or night, Gagnon's is a top contender.

#2 Stellos Electric

Screenshot of Stellos Electric website A screenshot of the Stellos Electric website.

Stellos Electric has been providing quality electrical contracting services for over 60 years, with a strong focus on design/build, new construction, and commercial projects. They also offer residential services and have a bucket truck available for larger jobs. Their team handles everything from lighting design to fire and security alarm systems, making them a versatile choice for complex projects. They pride themselves on responsive electrical systems and have a dedicated 24-hour service line. For larger-scale electrical work or commercial builds, Stellos brings decades of expertise.

#3 Johnson's Electric Supply

Screenshot of Johnson's Electric Supply website A screenshot of the Johnson's Electric Supply website.

Johnson's Electric Supply is New Hampshire's oldest electrical contractor, operating since 1912 and now run by the fourth generation of the family. They offer full-service electrical installation and repair for residential, commercial, and industrial clients, with a subsidiary retail lighting store called Just Lights. Their long history in the Nashua area, including work at Holman Stadium, demonstrates their deep roots and commitment to the community. They stand behind their work and won't rest until you're 100% satisfied. If you value tradition and a proven track record, Johnson's is a reliable choice.

#4 Electrical Contractor | High Voltage Electric INC

Screenshot of Electrical Contractor | High Voltage Electric INC website A screenshot of the Electrical Contractor | High Voltage Electric INC website.

High Voltage Electric INC is a licensed and insured contractor based in Nashua, NH, with over 10 years of experience and a Google Guaranteed badge. They offer a wide range of services including electrical repair, panel upgrades, EV charger installation, and outdoor lighting, all with a focus on safety and code compliance. Their team holds OSHA 30 and First Aid certifications, and they provide free in-home estimates with a written warranty on all work. They emphasize clear communication and clean job sites, making them a great fit for homeowners who want a hassle-free experience. For residential and light commercial projects where trust and transparency matter, High Voltage Electric is a solid pick.

#5 Loren Morse Electrical Service

Screenshot of Loren Morse Electrical Service website A screenshot of the Loren Morse Electrical Service website.

Loren Morse Electrical Service has been voted Best of Greater Nashua and offers a full range of residential and commercial electrical services. Their team handles everything from troubleshooting and kitchen remodels to new construction, code upgrades, and knob and tube removal. They are fully licensed and insured, serving both New Hampshire and Massachusetts, and they emphasize quality work and exceptional customer service. Their recent projects page showcases their commitment to customer relationships. If you need a contractor who listens to your vision and delivers on time, Loren Morse is worth considering.

How to Choose the Right Electrician for Your Project

Start by clearly defining the scope of your project. Are you dealing with a simple outlet repair, a full panel upgrade, or a new construction build? Match the contractor's specialty to your needs. Always verify licensing and insurance, and ask about warranties on labor and parts. Read recent online reviews to gauge customer satisfaction, and don't hesitate to request a detailed written estimate before work begins. Finally, consider their availability for emergency services if that's a priority for you.

Streamlining Your Electrical Project Workflow

Once you've selected a contractor, you can streamline the process by scheduling a free in-home estimate, which many of these companies offer. During the estimate, clearly communicate your needs and ask for a timeline. After the work is done, request a final walkthrough and ensure you receive a written warranty. For ongoing maintenance, consider setting up a reminder for annual electrical inspections to keep your system safe and up to code.

Your Next Step Toward a Safer Home

Choosing the right electrician in Nashua, NH, doesn't have to be overwhelming. Whether you need emergency service from Gagnon's, design expertise from Stellos, historic reliability from Johnson's, transparent service from High Voltage Electric, or specialized upgrades from Loren Morse, each contractor on this list brings something unique to the table. Take the time to get a free estimate and ask questions. Your home's electrical system is too important to leave to chance.

Nari Park

About the Author

An expert analyst specializing in data-driven insights, Nari Park has a passion for uncovering market trends. In her downtime is an avid landscape photographer.