Generator Maintenance & Service in the Hudson Valley and Northern NJ
Keep your generator ready for any outage with routine maintenance and honest, upfront pricing.
Call now to speak with our team, get pricing over the phone, and schedule your next service. No pressure and no surprises. Just reliable care for your backup power system.
100% Satisfaction, Guaranteed
We treat every maintenance visit like a critical service call — ensuring your generator is ready when you need it most. From oil changes to full system checks, we stand behind our work.
Peace of Mind, Start to Finish
Our proactive maintenance plans include annual inspections, load testing, and priority support. We handle everything so you’re never left in the dark.
Expertise You Can Count On
As a certified Generac® dealer, we stay up to date with the latest service protocols, product updates, and factory training. Our technicians follow manufacturer recommended maintenance procedures to keep your generator running reliably and safely 
“ZAM installed a Generac Generator for our home. We absolutely loved working with them. They are true professionals! Great communication and Very reasonable price. I would highly recommend to hire them if you are looking for quality work!”
- Natasha
“ZAM is one of the top and very skilled electrical contracting companies in the Northern NJ and NY areas. They have completed several high design installations for me, and I couldn’t be more pleased with the results”
- Franco
“Had my level 2 charger installed, Top notch company with excellent communication and great service”
- Sean
“ZAM did a terrific job replacing our 75 year old electrical system. They were on time, kept me informed, and their communication was prompt and polite. I would highly recommend them to any homeowner.”
- Brent
“Since my uncle had limited income, ZAM came through for us with a great estimate and a great job done, exceeding our expectations! Highly recommend them!
- Diane
FAQs
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FAQs *
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You can schedule in just a few clicks—choose a date and time that works for you, and we’ll confirm everything by text or email.
Prefer to book over the phone? No problem—just give us a call and we’ll take care of it for you. -
It’s best if someone is home during the visit, especially in case we need to show you any issues or perform a power-down system check. We always get your permission before shutting off power to test your generator’s automatic startup.
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Absolutely. We’re fully licensed and insured for all the work we do. Our team holds over 15 master-level licenses and brings decades of experience to every project. That means your home is in qualified, capable hands—every time.
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Manufacturers recommend servicing your generator at least once a year. If your generator runs frequently — especially during outages — more frequent maintenance may be needed to keep it reliable.
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We perform a full system inspection, oil and filter changes, battery checks, load testing, and ensure your generator is ready for emergency use.
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Yes. We offer annual and multi-year maintenance plans that include priority scheduling, discounted service rates, and peace of mind knowing your generator is always ready.
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What areas do you serve for generator maintenance?
We proudly serve homeowners across the Hudson Valley, Northern New Jersey, and select parts of Eastern Pennsylvania. Our core service areas include:Orange County, NY: Goshen, Middletown, Monroe, Warwick, Chester, Cornwall
Rockland County, NY: New City, Nanuet, Pearl River
Dutchess & Putnam Counties, NY: Poughkeepsie, Fishkill, Cold Spring
Westchester County, NY: Peekskill, Yorktown Heights, White Plains
Sullivan County, NY: Monticello, Liberty
Northern NJ: Mahwah, Ramsey, Franklin Lakes, West Milford
Eastern PA (limited availability): Milford, Matamoras
If you're located nearby, there's a good chance we serve your area — feel free to reach out and ask.
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We’re happy to help. Whether you need advice, troubleshooting, or just want to understand your options, give us a call anytime.
Trusted by Homeowners Across the Hudson Valley!
Take a look at real projects we've completed in your neighborhood. Our map showcases satisfied customers and the quality work ZAM is known for.
