Has your water temperature been inconsistent? Maybe your hot water supply has all but disappeared, or perhaps the water coming out of your taps has turned a rusty hue. If you’re nodding along, it’s probably time to replace that old water heater.
As a homeowner, there are a few things you can always count on: paying taxes and finding something in your home that needs fixing. It might be tempting to tackle some of those repairs yourself, especially with all the “how-to” videos and articles at your fingertips. But before you dive into a water heater replacement, there’s an important step you can’t skip: getting the proper permit.
In this post, we’ll walk you through when you need a permit to install or replace a water heater in Wisconsin, why it matters, and how hiring a licensed plumber can save you headaches (and help you stay code-compliant). Let’s get started!
Read more about water heaters: 10 Signs That Your Water Heater Needs to be Replaced
When Do You Need a Permit to Install or Replace a Water Heater?
You may need a permit to install or replace a water heater, but not always. In Wisconsin, permit requirements vary by municipality.
In most areas, a permit is required when replacing a water heater with a different model, such as switching from electric to gas, or moving the location of the unit. However, if you’re doing a direct swap (same type, same location), some municipalities may not require a permit at all, and homeowners are not required to get a permit if they are replacing the water heater themselves.
It’s always best to check with your local building department or let a licensed plumber guide you through the process. They’ll know exactly what your city or county requires and can help avoid any surprises down the road.
Why Does Having a Permit Matter?
Having a permit helps ensure your installation is safe and code-compliant. Water heaters connect to plumbing, gas, or electrical systems—all of which can pose serious risks if installed improperly.
With a permit in place, your installation will typically be inspected to confirm that it meets local safety and building codes. This adds an extra layer of protection for your home and your family.
And while not every project may require a permit, it’s important to understand the why behind it. The permit process helps catch mistakes before they become costly problems, and it documents that the work was done correctly, which can be valuable if you ever decide to sell your home.
Can Homeowners Install Their Own Water Heater?
In Wisconsin, yes, homeowners can legally install their own water heater, as long as they live in the home. You may still need a permit depending on your municipality and the type of installation, but licensed professionals are not always required for owner-occupied properties.
That said, even though DIY installation is allowed, it doesn’t mean it’s recommended. Mistakes with gas, electricity, or venting can have serious consequences. If you’re unsure about code requirements or how to properly complete the work, hiring a licensed plumber can save you time, money, and peace of mind.
How Hiring a Licensed Plumber Simplifies the Water Heater Permit Application Process
As we mentioned earlier, it may be tempting to tackle the water heater replacement yourself. However, allowing a licensed plumber to handle the job from start to finish, including obtaining the permit, saves you time, hassle, and a lot of stress.
When you hire a licensed professional, you don’t have to worry about navigating local codes or dealing with paperwork. A licensed plumber knows exactly what is required to get a permit and ensure your installation meets all safety standards. They will handle the inspections, connections, and final sign-offs so that everything is code-compliant and safe for your family.
At Watters Plumbing, we have been serving homeowners for more than 65 years. We have helped countless families through the water heater replacement process, making sure everything is done correctly and efficiently. When you hire us, you are not just getting a water heater installed. You are getting peace of mind knowing that the job is done right.
