Cords can overheat
Light-duty cords strung through a window can overheat and only power a few things at a time.
Portable generator hookup
Generator Transfer Switch Installation in Marlboro, NJ with Same-Day Visits
Own a portable generator but end up running extension cords through windows every storm? A transfer switch or interlock kit lets you power your furnace, fridge, sump pump and lights straight from your panel, safely. If you are searching for portable generator hookup near me, our licensed electricians install it to code in Marlboro and nearby towns.
We offer same-day visits, and our emergency line is open 24 hours if a storm is already on the way.
- Interlock or transfer switch
- Outdoor power inlet
- Permit & inspection
- Works with your generator
The problem with cords
Why Extension Cords and Backfeeding Are Dangerous
A portable generator is a great tool. How you connect it decides whether it's safe.
Backfeed can kill
A homemade cord plugged into an outlet can send power back onto the street and shock a lineman working nearby.
Fire risk at the panel
Unlisted hookups can overload wires and connections inside your home.
Your heat can't plug in
Furnaces, boilers and well pumps are hardwired. Cords can't reach them. A transfer switch can.
Choose your setup
Transfer Switch vs Interlock Kit
Both keep generator power off the utility line. The right one depends on your panel and what you want to run.
| Manual transfer switch | Panel interlock kit | |
|---|---|---|
| How it works | A small subpanel with switches for chosen circuits | A plate on your main panel that lets the generator breaker or main breaker be on, never both |
| Circuits you can power | Usually 6 to 10 circuits picked in advance | Any circuit in the panel, within the generator's limits |
| Panel space needed | Mounts beside your panel | Needs one double space for the generator breaker |
| Best for | Homes with a full or older panel | Homes with a panel that has room and a listed kit for that model |
| Brands we use | Reliance Controls and similar listed switches | Listed kits matched to Square D, Eaton, Siemens and more |
Not sure which fits? We look at your panel and generator and recommend the simpler, safer choice for your home. If your panel is an old Federal Pacific or Zinsco, we'll talk about replacing it first.
What gets installed
Everything You Need for a Plug-and-Play Hookup
One trip, one permit, and you're ready for the next outage.
A complete, tidy setup
- A listed transfer switch or interlock kit at your panel
- A weatherproof power inlet box on an outside wall, sized to your generator (30 or 50 amp)
- The right gauge wire from the inlet to the panel
- A matching generator cord with twist-lock ends
- Labels on the panel and a simple step-by-step card
We teach you how to use it
Before we leave, we run your generator through the new hookup with you. You'll know the exact order: generator on, main off, generator breaker on, and back again when power returns.
Have a large home or want hands-free power? Compare with a whole house standby generator.
Use it safely
Portable Generator Safety Rules We Follow and Teach
The hookup is only half of safety. Where and how you run the generator matters just as much.
Placement
- Run the generator outside only, never in a garage, shed or basement, even with the door open
- Keep it at least 20 feet from the house, pointing exhaust away from windows and doors
- Place the inlet box where the cord can reach that safe spot
- Keep it dry and on level ground
Carbon monoxide
Generator exhaust contains carbon monoxide, a gas you can't see or smell. The CDC warns that it can build up fast. Make sure your home has working CO alarms near sleeping areas.
We can add or replace them with our smoke and CO detector installation service while we're there.
Compare
Transfer Switch or Standby Generator?
Both are good choices. It comes down to how you live and what you need during an outage.
A transfer switch is right if...
- You already own a portable generator
- You're fine heading outside to start it
- Keeping essentials running is enough
- You want a quicker, simpler project
A standby generator is right if...
- You want power back on automatically, even when you're away
- You need central air or whole home coverage
- Someone in the home relies on medical equipment
- You'd rather never handle fuel or cords
Helpful guides
Read Before You Book
Plain-English answers to the questions homeowners ask us most.
Brands & service areas
Brands We Service and Towns We Cover
Brands We Connect
Transfer switches, portable generators and the panel brands our interlock kits are matched to.
View All BrandsServing Marlboro and Nearby Towns
Portable generator hookups across Marlboro and these nearby towns.
View All Service AreasQuestions
Frequently Asked Questions
Do I need a transfer switch for a portable generator?
To power hardwired items like a furnace or well pump through your home's wiring, yes. A listed transfer switch or interlock is the only safe and legal way to connect a generator to your panel.
What's the difference between an interlock and a transfer switch?
An interlock is a plate on your main panel that prevents the main and generator breakers from being on together. A transfer switch is a separate small panel with switches for selected circuits. Both prevent backfeed.
Do I need a permit for a generator interlock in New Jersey?
Yes. Installing an inlet, transfer switch or interlock is electrical work that needs a permit and inspection. We take care of it.
What size inlet box do I need?
It depends on your generator's outlet. Most mid-size portables use a 30 amp twist-lock outlet, while larger ones use 50 amps. We match the inlet and cord to your unit.
How far should my generator be from the house?
Follow your generator's manual and keep it well away from doors, windows and vents. The CDC recommends at least 20 feet. Never run it in a garage.
Can I power my central air with a portable generator?
Most portable generators can't start a central AC unit. They're best for essentials like heat, the fridge, sump pump, lights and internet.
How long does a transfer switch installation take?
Most transfer switch and interlock installs are finished in a few hours, plus the township inspection.
Get Your Portable Generator Hooked Up Safely
Book a same-day visit with a licensed Marlboro electrician. We'll install the right hookup and show you how to use it before the next storm.
(732) 419-5195