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.
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.

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.
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!"
"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"
"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!"
" 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."
"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!"
"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"
"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."
"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"
"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."
Professional Hookup vs. Extension Cords
Why a dedicated panel connection is the superior choice.
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.
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.
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.
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.
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.

