5 Questions to Ask About Water Heater Installation and Replacement

Ask the right questions to avoid a chilly surprise

Close-up of water heater
Photo: marketlan / Adobe Stock
Close-up of water heater
Photo: marketlan / Adobe Stock
Get quotes from up to 3 pros!
Enter a zip below and get matched to top-rated pros near you.
Geo Icon

The last thing anyone wants is a blast of cold water in the middle of a nice, hot shower. If your water heater's been acting up, it's most likely time to replace it. To make sure the replacement lasts you a long while and provides you with plenty of hot water, be ready to answer the following water heater questions when you meet with a local water heater installation pro.

When do you need the water heater?

Depending on your situation, the answer to this question may be "five minutes ago" or "in a few weeks." You may see warning signs of water heater failure but still have hot water for now. Or, maybe you woke up today to an icy surprise from the faucet. 

How quickly you need a new water heater will influence the options available to you. For example, a special order heater is off the table if you need a new one ASAP. 

What kind of heat source do you want?

Typically, water heaters are gas or electric. Both provide a source of hot water, but each one has its pros and cons. If you already have one type of water heater installed, it's usually easiest to keep using that source of heat. But, there may be cases when it makes sense to switch. 

Gas heaters usually provide hot water more quickly than electric water heaters. They may be slightly more energy efficient and have a lower operating cost compared to electric heaters, but they also take up considerably more space in your home. Electric heaters can be a bit slower to warm up but are generally much smaller.

What type of water heater do you want installed? 

Along with gas or electric power options, be ready to talk to the plumber about the type of water heater you want. Your main options include tank or tankless. Tankless water heaters start to warm up the water when you turn on the hot tap, rather than storing a supply of hot water at the ready. They cost more upfront than a heater with a tank but may have lower energy costs down the line.

What maintenance will the water heater require?

Get ready to discuss water heater maintenance with the technician and find out what you’ll need to do to keep your heater in good shape. For example, flushing a water heater tank is a typical maintenance task that will extend its lifespan and help it work more efficiently.

Do you need help with other plumbing projects?

Water heater installation or replacement can be the perfect time to tackle other plumbing projects, such as installing a new kitchen faucet or replacing a bathroom sink, while the pro is in your home. Keep in mind that adding projects to your list will affect your budget and may make the process take longer.

Need professional help with your project?
Get quotes from top-rated pros.
The homeowners guide to water heater services
From average costs to expert advice, get all the answers you need to get your job done.
Mom and toddler wash dishes
May 29, 2025
May 29, 2025
Wondering how much a water heater expansion tank costs? Use this cost guide to get an accurate estimate and learn how to choose the right one for your home.
Mom and child washing dishes together
May 20, 2025
May 20, 2025
A water heater flush costs $160 on average but can vary based on the unit size, type, labor, location, and more. Keep reading to learn how much you could pay.
Technician carefully lifts a water heater while wearing gloves in a well-lit garage with tools and supplies on the counter nearby.
Jun 11, 2025
Jun 11, 2025
Looking to replace or upgrade your water heater? Use this water heater replacement cost guide to see what the work will cost and what factors affect your total.
Woman calling a boiler breakdown service
May 1, 2025
May 1, 2025
Not getting enough hot water? Here's how to check the hot water heater for problems and what you can do to fix it.
Worker repairing water heater
Apr 23, 2025
Apr 23, 2025
A lack of hot water might not mean an expensive repair. Use this guide to learn how to replace a thermocouple on a water heater as a potential fix.
Woman running a bath
Apr 4, 2025
Apr 4, 2025
Not sure who fixes tankless water heaters? In most cases, you’ll want to call a plumber.