Reliable Commercial & Industrial Generator Service in NH & MA

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Keeping Your Business Powered with Expert Generator Service

At Electrical Technology Solutions, we offer comprehensive commercial and industrial generator services throughout New Hampshire and Massachusetts. Whether you operate a medical center, warehouse, government building, or manufacturing facility, our team provides the preventive maintenance, load testing, repairs, and emergency support you need to keep your operations running 24/7.

Large industrial generators installed in a commercial facility – part of ETS generator sales services in New England
ETS technician inspecting and troubleshooting an industrial generator control panel inside a facility

Scheduled Maintenance & Preventive Care

Preventive maintenance is the foundation of a reliable generator system. Our service plans are customized for commercial and industrial equipment and include oil and filter changes, battery checks, fluid analysis, and system diagnostics. Regular servicing extends equipment life, improves performance, and ensures compliance with industry standards. Our team helps you create a maintenance schedule that fits your business’s needs and minimizes downtime.

Scheduled Maintenance & Preventive Care

Load Bank Testing & System Inspections

Load bank testing is essential to verify your generator’s capacity under real-world conditions. We perform periodic testing to ensure your generator can handle the expected power load and identify any weaknesses before they become failures. ETS also conducts detailed system inspections, including fuel system checks, control panel analysis, exhaust assessments, and voltage regulation testing—ensuring your generator is always ready for critical use.

Hydroelectric control panel with PLC display inside a power station – part of ETS control system installation and service
ETS technician inspecting outdoor generator control unit with tablet during excitation troubleshooting in fenced industrial site

Emergency Generator Repairs – 24/7 Availability

When your generator fails, every minute counts. Our licensed technicians are on call 24/7 to respond to commercial and industrial generator emergencies. We troubleshoot and resolve issues ranging from starter failures and control malfunctions to fuel system leaks and voltage irregularities. With a fleet of fully equipped service vehicles and fast access to replacement parts, we minimize disruption and restore your system quickly.

ETS technician inspecting outdoor generator control unit with tablet during excitation troubleshooting in fenced industrial site

Generator Service for All Leading Brands

We service all major commercial and industrial generator brands, including Generac, Kohler, Cummins, Caterpillar, and MTU. Whether your equipment is diesel, natural gas, or dual-fuel, our technicians are factory-trained and experienced in servicing complex systems of all sizes. We also provide service for integrated systems with automatic transfer switches, paralleling gear, and load-sharing components.

Hydroelectric control panel with PLC display inside a power station – part of ETS control system installation and service
ETS technician inspecting outdoor generator control unit with tablet during excitation troubleshooting in fenced industrial site

Compliance, Reporting & Documentation

Facilities with mission-critical power requirements—like hospitals, government buildings, and data centers must comply with local and federal standards. ETS provides complete service records, inspection reports, and compliance documentation required by regulators, insurers, and stakeholders. We help ensure you’re ready for audits and inspections with no surprises.

Trusted by Businesses Across New England

ETS serves a wide range of commercial and industrial clients in both urban and rural areas across New Hampshire and Massachusetts. From Boston to Concord, we understand the unique challenges posed by regional weather, permitting, and site logistics. Our commitment to responsive service, technical expertise, and long-term relationships makes us the preferred partner for mission-critical generator systems.

Explore our full generator services to learn how we support clients with both sales and ongoing maintenance.

Hydroelectric control panel with PLC display inside a power station – part of ETS control system installation and service

Testimonials

What Our Customers Say About Electrical Technology Solutions

Facility managers and plant operators across New Hampshire, Vermont, Maine, Massachusetts, New York, Connecticut, and Rhode Island trust ETS for fast, expert solutions in generator service, hydroelectric controls, and power automation. With unmatched troubleshooting skills and industry experience, we consistently deliver results our clients depend on—every time.

Simon R.

Hydroelectric Superintendent

5‑star customer rating for ETS testimonial from Simon R.

“ETS is comprised of dedicated, hardworking and ambitious individuals totally committed to their craft. Their goal is to provide the best product they can, and they work diligently to make sure you are happy with the product and the product is reliable. As a superintendent of a hydroelectric plant, every day reveals another problem either as a failure of a component or new rules to follow that require different automation schemes. ETS is fully capable in all phases of project. I have yet to find something that is out of their wheelhouse and trust me, I have a lot of ideas."

Andrew S.

Plant Manager

5‑star customer rating for ETS testimonial from Andrew S.

“I have been working with the ETS team for 5+ years on electrical and electrical control projects in a Hydroelectrical power plant. Ranging form panel refurbishments, troubleshooting and testing, PLC programming and major commissioning and electrical restoration projects. Scott, his engineers and electricians have immediate responses to my needs limiting my generation downtime. Day or night the work is done promptly, safely, and on time. Communication and workmanship are both fantastic. I can't speak highly enough about the knowledge that ETS brings to the table for our various plant systems. ETS is always my first call when dealing with issues throughout the plant.”

Electrical Technology Solutions Service Area

Just A Few Of The Areas We Serve...

Brookline

Hollis

Milford

Amherst

Windham

Bedford

Electrical Technology Solutions Service Area

Just A Few Of The Areas We Serve...

Generator Service

Vermont

Maine

Hydroelectric Service

Vermont

Maine

New York

Conneticut

Rhode Island

Electrical Technology Solutions

Your Trusted Generator & Power Control Experts in New England

Delivering expert generator service, hydroelectric power control, and excitation system solutions with unmatched skill and care. ETS proudly serves commercial and industrial clients across NH, VT, ME, MA, NY, CT, and RI—offering fully licensed, factory-certified service and free estimates you can rely on.

FAQs

Answers to Your Top Generator & Power System Questions — We’re Here to Support Facilities Across New England!

How often should I service my commercial generator?

Most commercial generators should be serviced at least twice a year, though high-use or mission-critical facilities may require quarterly or monthly maintenance. We’ll help set a schedule that matches your operational demands.

What if my generator fails during off-hours?

We offer 24/7 emergency repair services across New Hampshire and Massachusetts. Our team is always available to troubleshoot and restore your system.

Do you provide service reports and documentation?

Absolutely. Every service visit includes detailed reporting for compliance, tracking, and warranty purposes.

Do you offer service contracts?

Yes, we provide flexible maintenance contracts tailored to your needs, ensuring consistent care and reducing the risk of unplanned outages.

Can you service older or legacy generator systems?

Yes, our technicians are trained to work on both modern and older generator systems, including those from discontinued brands.

What areas do you serve?

We service commercial and industrial facilities throughout NH and MA, including cities like Boston, Nashua, Worcester, Concord, and surrounding towns.

CONTACT Electrical Technology Solutions

Expert Generator & Power Control Services Across New England — Book Your Free Estimate Today

Protect your facility with expert generator service, excitation system repair, and hydroelectric control support. Whether it's an emergency fix or a long-term upgrade, ETS offers fast, certified service to help you avoid costly downtime and keep operations running smoothly.

“At ETS, we offer free, no-obligation estimates to help you plan confidently. Our fully insured and factory-certified team proudly serves NH, VT, ME, MA, NY, CT, and RI—delivering high-quality, efficient results, every time.”

ETS Electrical Technology Solutions company logo – trusted generator and hydroelectric service provider in New England

Energizing with ETS—your trusted partner for generator systems, excitation repair, and hydroelectric control services across New England. Headquartered in Bow, NH, we proudly serve NH, VT, ME, MA, NY, CT, and RI with over two centuries of combined, proven field expertise and reliability.

Get in Touch

1357 Route 3A Unit C Bow NH 03304

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