Installing a new water heater may seem simple, but if it’s not done right, it can cause big problems later. Many people try to do it themselves or hire someone without enough experience, only to need a water heater repair not long after. That’s why companies like Mr. Rooter Plumbing often get called in to fix mistakes that could’ve been avoided in the first place. Let’s review some of the most common mistakes made during a water heater installation and why it’s usually best to call in a plumber who knows what they’re doing.
Not Checking Local Codes
Every city and town has its own rules for installing water heaters. These codes are there for safety reasons. One of the most common mistakes is skipping this step. If the heater isn’t installed according to code, you could be fined—or worse, you could be putting your home at risk. Professional plumbing service companies ensure everything is done right and safely the first time.
Mr. Rooter Plumbing, for example, stays current with all local codes and ensures everything meets safety standards. That kind of peace of mind is priceless.
Wrong Size Water Heater
Bigger isn’t always better. Many people think a larger tank will be more helpful, but if it’s too big, you’ll waste energy heating water you won’t use. You’ll always run out of hot water if it's too small.
A trained plumber in Boca Raton, FL knows how to determine the right size for your home based on the number of people living there and the water you use. Choosing the wrong size often requires water heater repair much sooner than expected.
Skipping the Drain Pan
This might sound small, but not having a drain pan under your water heater is a huge mistake. The pan catches water leaking from the heater and prevents it from damaging your floors or leaking into other parts of your house.
A good plumbing service always includes a drain pan, especially when installing a water heater in a place where leaks could cause serious damage. Mr. Rooter Plumbing knows the value of little details like this. It’s one of those things that doesn’t cost much but can save you a lot of money later on.
Not Installing a Pressure Relief Valve
A pressure relief valve is a safety feature that helps release extra pressure inside the tank. If this valve is missing or not installed correctly, your water heater can explode. Yes, explode! That’s why this is one mistake you don’t want to make.
This is another reason to hire a professional plumber. They understand how dangerous this mistake can be and will ensure your water heater has all the right safety parts installed.
Poor Ventilation
Water heaters must safely vent dangerous gases like carbon monoxide outside your home. If the ventilation isn’t done correctly, those gases can get trapped indoors, putting everyone at risk.
This is not a “try it yourself” kind of job. Getting the ventilation wrong is not just a mistake—it’s a health hazard. Mr. Rooter Plumbing always ensures gas water heaters are safely installed with proper ventilation to keep your home safe.
Loose Connections
If any water or gas lines are loose, even a little bit, it can cause leaks. Water leaks can ruin your floor, and gas leaks can be dangerous for your whole family. Sadly, many DIY installations overlook this.
A professional plumbing service will test every connection to ensure it’s tight and secure. This step is often skipped by people who rush or don’t double-check their work. Mr. Rooter Plumbing takes the time to do it right, which can prevent many future problems.
Forgetting Regular Maintenance
Some think installing a water heater is a “set it and forget it” kind of thing. But just like your car needs oil changes, your water heater needs regular checks and maintenance. Skipping this can lead to early failure and require a water heater repair sooner than expected.
Even after a perfect installation, regular care matters. Many plumbers offer maintenance plans to help keep your system running smoothly year after year.
Call a Pro for Peace of Mind
If you're considering installing a new water heater or replacing an old one, don’t try to do it alone. A lot can go wrong, and those mistakes can cost you big time. A trained plumber can ensure everything is done safely, up to code, and built to last.
Need help? Contact a trusted plumbing service like Mr. Rooter Plumbing. They’ve handled thousands of water heater installations and can guide you every step of the way. Don’t risk your home and comfort—let the pros take care of it!
