Standby power for Nassau County
Nassau County Standby Generator Installation
A permanently installed standby generator can keep selected circuits—or a larger portion of a home or business—powered when utility service fails. Haines Electric installs Briggs & Stratton standby generator systems throughout Nassau County and helps plan the electrical work around the property’s actual backup-power needs.
Generator sizing, fuel source, placement, the automatic transfer switch, permits, and existing electrical capacity all affect the installation. Our electricians review those pieces before recommending a system.

Why Trust Haines Electric?

Standby vs. Portable Generators: What Homeowners Should Know
A standby generator is permanently connected to the electrical system and works with an automatic transfer switch. When utility power fails, the system starts and transfers the selected electrical load without requiring someone to move or connect equipment.
A portable generator is temporary equipment that requires manual setup, safe outdoor placement, and refueling. Connecting it to a home’s wiring requires suitable transfer equipment installed by a qualified electrician; never feed power into a wall outlet. For homeowners who want automatic backup during an outage, a standby system is usually the more practical option.
The right size depends on what you want to keep running. Essential-circuit backup may cover refrigeration, heat controls, lighting, and selected outlets, while broader coverage requires a larger load calculation. Review our whole-home generator buyer’s guide and generator transfer-switch guide before planning your installation.
- We provide generator installation in Nassau County.
- With years of knowledge and expertise, we can help get you back on track quickly and easily.
- We plan backup power around the equipment you need to keep running at your home or business.
- Our team is backed up by 5-star reviews from highly satisfied customers.
Plan Backup Power Before Winter Outages
Keep Heating Equipment on the Priority List
Many gas- and oil-fired heating systems still need electricity for controls, ignition, a blower, or circulation pumps. Tell us which heating equipment, refrigerator, sump pump, lights, and outlets you want available during an outage.
Plan for Starting and Running Loads
Motors can need extra power when they start. Generator planning should account for both startup and running loads, the circuits that will operate together, fuel supply, and any load management. Whole-home coverage is available only when the system is sized and configured for those loads.
Portable Generator Safety During a Winter Outage
Carbon monoxide from generator exhaust can be deadly. Run a portable generator outdoors at least 20 feet from homes and buildings, with exhaust directed away from doors, windows, and vents. Never run it inside a home, garage, basement, or shed—even with doors open. Follow the manufacturer’s weather-use instructions.
Use working carbon monoxide alarms with battery backup. If an alarm sounds or poisoning is suspected, get outside and call 911. A qualified electrician must provide the appropriate transfer arrangement before a generator supplies home wiring.
Read CPSC generator safety guidance and our generator transfer-switch guide.
Certified Briggs & Stratton Maintenance
At Haines Electric, we are proud to offer maintenance for Briggs & Stratton generators. Our veteran electricians are Briggs & Stratton pros, to ensure your generator operates at peak performance. With regular maintenance, we help prolong the lifespan of your generator, optimize efficiency, and prevent unexpected breakdowns.
Why Choose Certified Maintenance?
- Expertise You Can Trust: Our technicians follow the latest Briggs & Stratton guidelines.
- Comprehensive Service: From oil changes to system diagnostics, we cover it all.
- Genuine Parts: We use only Briggs & Stratton-approved parts for lasting reliability.
Keep your generator ready for any power outage with care from Haines Electric. Schedule your service today!

Home Generators: A Miracle When The Lights Go Out
The answers below cover the questions Nassau County homeowners most often ask about generator sizing, installation cost, permits, automatic operation, maintenance, and whole-home coverage.
What types of home generators do you install?
We install standby (permanent) home generators from trusted brands like Briggs & Stratton. These systems automatically restore power to essential circuits during an outage and run on natural gas or propane.
What size generator do I need for my house?
Generator size depends on how many circuits or appliances you want to power — from basic essentials (lights, fridge, sump pump) to whole-home coverage (HVAC, water heater, kitchen, etc.). We offer free assessments to help determine the right size for your home and budget.
How much does it cost to install a home generator in Nassau County?
Installation costs typically range from $5,000 to $12,000 depending on the generator size, fuel source, transfer switch, permits, and wiring. We provide transparent quotes and handle everything from prep to final inspection.
Do I need a permit to install a generator?
Yes — Nassau County and most local townships require permits for standby generator installations. Haines Electric handles all permitting, zoning requirements, and inspections to ensure full code compliance.
How long does it take to install a standby generator?
Most installations take 1 to 3 days. This includes site preparation, pouring the concrete pad (if needed), electrical wiring, plumbing the gas line, and testing the system.
Do home generators turn on automatically during a power outage?
Yes — standby generators connected to an automatic transfer switch (ATS) detect utility outages, start, and transfer the selected circuits to generator power. There is a brief interruption while the system starts and transfers. Once utility power returns and stabilizes, the system transfers back automatically.
Can you service or repair my existing home generator?
Yes — we provide maintenance, inspections, and repairs for most major generator brands. Regular servicing is essential to ensure your generator performs when you need it most.
Do you offer annual generator maintenance plans?
We do. Haines Electric is a Briggs & Stratton Certified Maintenance Provider and offers routine service plans that include oil changes, load testing, battery checks, and system diagnostics.
Can a generator power my whole house?
Yes, when the generator, transfer equipment, fuel supply, and load management are sized and configured for the home’s electrical needs. Whole-home coverage does not mean every appliance can run at once on every system. We also offer smart load management solutions that prioritize power usage for larger homes or limited gas supply.
Why choose Haines Electric for generator installation in Nassau County?
We’re local, licensed electricians serving Nassau County since 1971. We provide turnkey generator solutions, from sizing and permitting to installation and long-term maintenance. We help plan backup power around the circuits and equipment that matter to your property.
Briggs & Stratton Repairs, Installation and Maintenance
Haines Electric is a Briggs and Stratton Certified Authorized Dealer
Our team specializes in installing, servicing, and maintaining the top-of-the-line Briggs and Stratton generators. As the trusted name in power generation equipment, we pride ourselves on delivering exceptional service to customers using Briggs and Stratton Generators across Long Island’s Nassau County.
Installation
Our expert team is experienced in the professional installation of Briggs and Stratton generators. We ensure that the installation process is carried out smoothly and efficiently, minimizing disruption to your home or business. Haines Electric will help you choose the right generator for your needs, taking into account your power requirements and the size of your property.
Repairs, Service and Maintenance
Regular service and maintenance of your Briggs and Stratton generator are crucial to ensuring its longevity and optimal performance. At Haines Electric, we offer comprehensive service plans that include regular checks, updates, and preventive maintenance. From routine oil and filter changes to more complex tasks like replacing worn-out parts, our team has got you covered. We use only genuine Briggs and Stratton parts to guarantee the quality and reliability of your generator.
We believe in providing top-quality service to all our clients. Whether you need a new Briggs and Stratton generator installed, an existing one serviced, or require emergency repairs, we’re here to help.
Talk with us about your Briggs and Stratton generator needs in Nassau County so the installation and service plan reflect your property’s requirements.
How A Standby Generator Works
A standby generator provides backup electricity to the circuits selected during installation. Here is how an automatic system responds to a utility outage:
- Power Monitoring: The heart of a standby generator system is the automatic transfer switch. This device continuously monitors the power coming from your utility. It’s on alert 24/7, ready to jump into action the moment it detects a power outage.
- Start-up: Once the transfer switch senses a power outage, it sends a signal to the generator to start up. The generator will typically start running within seconds of a power interruption.
- Power Transfer: After the generator starts, the transfer switch safely disconnects your property from the utility grid and switches over to the generator as the source of power. This happens automatically after a brief interruption while the generator starts and the switch transfers the load.
- Power Supply: The generator now supplies power to your home or business until the utility power is restored. It can power everything from lights and appliances to heating or cooling systems, depending on the generator’s capacity.
- Automatic Shutdown: Once the utility power is back on, the transfer switch senses this, switches back to using the utility power, and sends a signal to the generator to shut down. Your property is then reconnected to the grid, and the standby generator returns to its monitoring mode, ready for the next power outage.
A correctly planned standby system restores power to its connected circuits automatically. It still needs adequate fuel, maintenance, and a load plan that matches its capacity.
Expert Generator Installation Services In Long Island by Haines Electric
A standby generator installation involves more than selecting the equipment. The project may include load planning, generator placement, an automatic transfer switch, fuel coordination, permits, wiring, testing, and inspection.
Haines Electric handles the electrical portion of standby generator installations throughout Nassau County. We review the property and the circuits you want to protect, explain the available options, and coordinate the installation steps required for the project.
For ongoing reliability after installation, see our home generator maintenance guidance.
- Atlantic Beach
- Bellmore
- Brookville
- East Hills
- East Williston
- Garden City
- Hewlett
- Island Park
- Jericho
- Lawrence
- Lido Beach
- Long Beach
- Lynbrook
- Malverne
- Massapequa
- Massapequa Park
- Mineola
- Merrick
- Manhasset
- Muttontown
- Oceanside
- Old Brookville
- Old Westbury
- Plainview
- Point Lookout
- Rockville Centre
- Roslyn
- Roslyn Heights
- Seaford
- Syosset
- Upper Brookville
- Valley Stream
- Wantagh
- Westbury
Coastal Generators for Nassau County Homes and Businesses
For property owners in coastal areas like Nassau County, choosing the right generator is more than just about power. The unique challenges of living near the water, such as salty air and strong storms, require specialized equipment built to withstand the elements. At Haines Electric, we offer expert installation and maintenance services for coastal generators, providing reliable power solutions specifically designed for your seaside environment.
Power You Can Depend On
Coastal exposure should be part of the installation plan. Equipment selection, placement, corrosion protection, fuel availability, and ongoing maintenance all affect backup-power reliability during storms.
Start with the questions that shape the project: which circuits need backup power, how much capacity is required, where the equipment can be placed, and how the transfer switch will connect the generator safely to the electrical system.
Our generator buyer’s guide explains sizing and installation considerations, while the transfer-switch guide explains how the system changes between utility and generator power. When you are ready to discuss your property, call (516) 432-4114 or request an estimate.
For seasonal circuit concerns, read our winter breaker-tripping guide. For urgent electrical faults, see our 24/7 emergency service guidance.
View More