Safe & Simple Connections

Portable Generator Hookup Services in McKinney, TX

You bought a generator for emergencies, but are you connecting it safely? Top Flow Plumbing Co. installs professional portable-generator-hookup systems that allow you to power your home’s breaker panel directly—without running a single extension cord through a window.

The Problem With Standard Extension Cords

Open Windows

Running cords inside means cracking a window or door open, letting in freezing air, rain, and potentially dangerous exhaust fumes.

Trip Hazards

A web of cords across your floor is a major tripping hazard for your family, especially in a dark house during a blackout.

Limited Power

You can't plug your furnace or ceiling fans into an extension cord. Without a proper hookup, your most essential appliances stay off.

The Interlock Solution

One Cord. Whole Home Power.

Our solution is simple and elegant: we install an exterior power inlet box and a panel interlock kit. This allows you to plug your generator into the side of your house just like an RV. Once connected, you can safely power your lights, refrigerator, and heating system right from your main breaker panel. If you are ready to ditch the extension cords, get started with a quick quote for your home today.

Power Inlet Box

A weatherproof plug installed on your home's exterior.

Interlock Kit

A safety device that prevents dangerous grid backfeeding.

Our Process

From Garage to Grid in 4 Steps

Site Survey

We determine the best location for your inlet box and size the wiring to match your generator's output.

Installation

We mount the exterior box and install the dedicated breaker and interlock device inside your main electrical panel.

Safety Test

We verify the portable-generator-hookup effectively isolates your home from the utility grid to ensure total safety.

Walkthrough

We show you exactly how to connect the cord and flip the switches so you are confident when the storm hits.

Why Upgrade To A Professional Hookup?

Run Your Furnace

The biggest advantage is the ability to power hardwired appliances like your gas furnace blower, keeping your home warm in winter.

Code Compliant

Our installations meet all National Electrical Code (NEC) standards, keeping your home insurance valid and your family safe.

Use Any Outlet

Instead of huddling around one power strip, you can use the outlets in your kitchen, bedroom, and living room normally.

Critical Warning

Never Backfeed Your Home

Some homeowners try to connect generators using "suicide cords" (male-to-male plugs) into dryer outlets. This is illegal and deadly. It sends high voltage back down the utility lines, which can electrocute linemen working to restore power. A proper portable-generator-hookup eliminates this risk entirely. If you currently use a homemade cord, please stop and visit our contact page for a safe upgrade immediately.

Trusted by Homeowners Across North Texas

At Top Flow Plumbing, our commitment to excellence is reflected in the positive experiences of our customers. Here's what some of them have to say about our plumbing services:

"Aaron was fantastic. We had a leak and he showed up in a timely matter, fixed the issue and gave us great knowledge as new home owner. Would definitely recommend!"

Logan Moore

"Aaron has always been amazing he has done a lot of work for me and is always helpful and quick to fix any issues. I very much appreciate all the work and help I have received"

Abigail Bower

"Their team was professional, knowledgeable, and efficient. Highly recommend if you need a plumber who truly knows what they’re doing and cares about doing it right!"

Marcel Deitrich

" I wouldn't hesitate to call Top Flow again for any plumbing issue. They were fast, took my 'emergency' seriously and they were ready to help me get it fixed. These guys are amazing, call them."

Michael Robbins

"They were responsive when I needed assistance! They were available to come within that week and not only assess the issue but install a new kitchen sink for me... I highly recommend this company. They do great work!"

Carisa Newsom

"We have a commercial building that was having issues. Two other plumbers along with city inspectors were lost. Top Flow came in, got to work and found the issue within a day. Thank you for your quick work. Highly recommend"

Kimberly Barnett

"The team was able to come out and fix my septic pipe in just a few days. It was a relief to know that old pipe was replaced. I was also able to have them take pictures of the pipe fix for my records."

Lydia Tomanek

"Aaron and his team were great. We had two minor plumbing issues and a pipe under our slab leaking. Timely service and reasonable prices AND they got the problems resolved fast. Will use them again"

Logan Graff

"Damium and his team were great. We had to change our toilet urgently and they showed up right on time and replaced it pretty quick and they got the problems resolved fast. Will be using them again."

Hardik Dumasia
Quality

Professional Hookup vs. Extension Cords

Why a dedicated panel connection is the superior choice.

Top Flow
Expert installation and support
Budget Contractors
Cut corners, lack certifications
Power Hardwired Items?
Setup Time?
Security?
Safety?
Convenience?

FAQ About Portable Generator Hookups

Got questions? We’ve answered the most common ones below to help you stay informed and confident in your next repair or replacement.

What size generator do I need?

To run a central A/C or large appliances, you typically need at least 7,500 running watts. We can help you size the generator during our consultation.

Can I run my Central A/C with this setup?

It depends on the size of your generator. If your portable unit produces enough amperage (typically 30A or 50A), we can often install a "Soft Start" kit to help it run your A/C.

How much does installation cost?

It is much more affordable than a standby generator. Pricing depends on the distance from your panel to the exterior wall. Contact us for a flat-rate quote.

Is an interlock kit legal?

Yes. A properly installed, UL-listed interlock kit is fully code-compliant and recognized by the National Electrical Code (NEC) as a safe transfer method.

Still have questions?

Get in touch with our team—we’re happy to help.

Ready For The Next Power Outage?

Don't struggle with cords in the dark. Get a safe, professional portable-generator-hookup installed today.