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Generator Installation in Philadelphia

When the power drops, the right electrical connections keep your home running. Dunphy Electric installs transfer switches, generator inlets, and dedicated circuits built around the appliances and systems that matter most to your household.

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Licensed, insured, and review-backed

Service Areas Covered

10+

Electrical Services Offered

Licensed

Experienced Electricians

About Us

Backup Power Done the Right Way

A generator is only as reliable as the wiring behind it. Dunphy Electric handles the electrical side of backup power for homeowners across Philadelphia, from transfer switches and inlet boxes to panel evaluations. We look at your home's specific setup and help you plan connections that work safely with the equipment you already have or plan to buy.

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Service benefits

Choose What You Want to Keep Running

Every home has different priorities during an outage. We help you map out which circuits deserve backup power first.

Refrigeration and freezer circuits

Sump pumps and basement systems

Heating controls and furnace circuits

Home internet and communication equipment

Lighting for key living areas

Medical equipment where applicable

Testimonials

What Customers Say About Dunphy Electric

Recent customer feedback about working with Dunphy Electric.

5.0 • 49 reviews

Google ReviewsLeave us a review

Phenomenal service. Incredibly responsive, knowledgeable, and don’t stop until the job is done. Couldn’t recommend more.

Spence Osborne

2026-10-15

Great team! Did various troubleshooting on my issue. Turns out it was something simple and they charged me only the small visit price. Will use again!

Brian Bagosy

2026-10-14

Honest guys that do good work at a reasonable price. Called Emmit to come quote a new line in my bathroom and a shower fan. He came out that day, we agreed on price and his guys came the following day. I called him a…

Anthony Stancampiano

2026-09-23

Emmet was great! Very friendly, communicative, and resolved our electric issue promptly. He even took his shoes off inside (very much appreciated) and swapped out the bulbs on the non-broken light track. Would…

Madeline Helberg

2026-08-28

This team are experts and check all the boxes of what you would expect and hope for from an electrician and more! Knowledgeable, kind, courteous, prompt, responsive and innovative. I highly recommend them for projects…

Terri Sarisky

2026-08-13

Emmet and his team were a pleasure to work with. Fair quote, fast turnaround, and super knowledgeable. Love these guys!

Joe Scola

2026-08-11

How It Works

Transfer Switches & Safe Generator Connections

Connecting a generator directly to your panel isn't a safe option. Here's how we set up backup power correctly, step by step.

01Step 1

Home Electrical Review

We walk through your existing panel and wiring to understand what your home can support and where backup circuits make sense.

02Step 2

Load Planning

Together we identify the appliances and systems you want powered during an outage, then plan dedicated circuits around them.

03Step 3

Transfer Switch or Interlock Installation

We install a manual transfer switch, panel interlock, or generator inlet box depending on your generator type and home setup.

04Step 4

Connection & Wiring

Dedicated circuits and connections are wired to code, keeping generator power isolated from utility power for safety.

05Step 5

Final Testing

Before we leave, we test the full setup to confirm the transfer switch and circuits function as intended.

Frequently asked

Generator Installation Questions

Get clear answers about generator installation, preparation, timing, maintenance, and what to expect before requesting an estimate.

What is a transfer switch and why do I need one?

A transfer switch safely isolates your home's circuits from utility power when a generator is running. It prevents backfeeding electricity into the grid, which protects utility workers and your own equipment.

Can I just connect my generator directly to the panel?

No. Connecting a generator directly to a panel without a transfer switch or interlock is unsafe and against code. It can damage equipment and create a serious hazard for line workers restoring power.

What can a generator actually power during an outage?

It depends on your generator's capacity and the circuits you choose to prioritize. We help you plan around essentials like refrigeration, sump pumps, heating controls, and internet, based on an assessment of your home.

Will my electrical panel need to be upgraded first?

Some homes need panel work before backup equipment can be safely added, especially older systems with limited capacity. We check your panel during our assessment and let you know if upgrades are needed.

Do you install generator inlet boxes for portable units?

Yes, we install generator inlet boxes designed for portable generators, giving you a safe, permanent connection point outside your home instead of running extension cords through windows or doors.

Can Dunphy Electric connect a standby generator?

We can handle the electrical connections for standby generator setups. The exact scope depends on your specific generator and home system, which we confirm during an on-site assessment.

How long does a typical generator installation take?

Timing varies based on your home's existing wiring, panel condition, and the type of generator setup you're installing. We'll give you a clearer timeframe once we've assessed your electrical system.

Do I need to know my generator type before calling?

Not necessarily. If you already own a generator or have one picked out, that helps us plan faster. If not, we can still start with a panel and home assessment to guide your options.