We service, repair, and install standby generators from every major brand across Suffolk and Nassau County.
Domino Fuel services and installs standby generators from all major brands on Long Island. Our factory-trained technicians repair, maintain, and replace every brand we carry, backed by free estimates and decades of local experience.
Licensed & Insured
Factory-trained technicians
All Major Brands
Service & installation
Free Estimates
No-obligation system quotes
Since 1981
Family-owned, local, trusted
Domino Fuel services, repairs, and installs standby generators from every major brand across Long Island. Whatever brand you have, or are considering, our factory-trained technicians know it inside and out. Explore the brands we carry below, or see our full generator installation.
Not sure which brand is right for your home? We will give you honest, no-pressure guidance and a free estimate. Browse all our brands by unit type.
No matter the brand, our licensed technicians handle it all: diagnosis and repair, annual maintenance and tune-ups, and full installation or replacement. We stock common parts, work to code across Suffolk and Nassau County, and back every job with a free estimate and honest advice. For details on what we offer, see our generator installation page.
A standby generator turns on automatically when the power fails and runs on your home's fuel. Sizing and install matter more than the badge. Weigh these:
We will run the load calculation and recommend the right size, with a free estimate.
Generators are rated in kilowatts (kW). A whole-home unit powers everything, including central air and electric ranges; an essential-circuits unit covers the basics like heat, the refrigerator, sump pump, and some lights for a lower cost.
The right size comes from a load calculation of what you actually need to run, not a guess, so you do not overspend or overload the unit.
Unlike a portable generator, a standby unit is permanently installed and wired to an automatic transfer switch. When it senses an outage, it starts on its own within seconds, powers your chosen circuits, and shuts down when utility power returns, even if you are not home. It also runs a weekly self-test.
That hands-off protection is why standby generators are popular for homes with sump pumps, medical equipment, or frequent storm outages on Long Island.
A standby generator install is electrical and gas work: a correct load calculation, properly sized gas line, a code-compliant automatic transfer switch, safe placement and clearances, and permits. This is not a DIY job, and a poor install is both unsafe and unreliable.
Our licensed team sizes, installs, and commissions every unit to code. See our generator installation page or request a free estimate.
Common questions about the brands we service and install.
Yes. Our factory-trained technicians repair and maintain standby generators from every brand we carry, and we can usually source parts for all of them.
Yes. We install and replace standby generators from all the brands listed, sized correctly for your home and installed to code, with a free estimate up front.
The best brand depends on your home, budget, and needs. We give honest, no-pressure recommendations and a free estimate so you can choose with confidence.
Yes. We offer financing through Wisetack so you can spread the cost of a new system into low monthly payments.
Yes. We offer financing on Long Island so you can spread the cost of a new system. Ask about current terms when you get your free estimate.
Yes. Domino Fuel is fully licensed and insured, and our technicians install and service to manufacturer specifications.
We service and install all major brands. Get a free, no-obligation quote from your local Long Island team.
