How long do water heaters last?

• <div><p>The lifespan of your water heater depends on the type of water. For traditional water heaters, you can expect it to last between <b>8 and 12 years</b> if gas or <b>10 to 15 years</b> if electric. <a href="https://www.angi.com/articles/what-are-pros-and-cons-tankless-water-heaters.htm">Tankless water heaters</a> can last up to <b>20 years</b> with proper maintenance. The total number of years you’ll get out of your water heater depends on the maintenance it receives and how much it’s used.</p></div>

Are tankless water heaters more energy-efficient than traditional water heaters?

• <div><p>According to the <a href="https://www.energy.gov/energysaver/tankless-or-demand-type-water-heaters">U.S. Department of Energy</a>, tankless water heaters are anywhere from 8% to 34% more efficient than regular water heaters. Exactly how much energy you’ll save depends on your household’s water usage. When you purchase a tankless water heater, you’ll also likely upgrade to more efficient technology than your current water heater, which can add to energy savings.</p></div>

Get matched with top water heater pros in Sikeston, MO

Q: What happens if you install a water heater without a permit?

• <div><p>Installing a water heater without a permit can result in high fines&mdash;as much as hundreds of dollars per day, in some areas. It can also void your homeowners' insurance and cause problems when selling your home because it violates local building codes and safety regulations.</p></div>

Q: Are hot water heater expansion tanks required for warranty coverage?

• <div><p>Depending on the brand of water heater, you may need to install an expansion tank in order to meet the conditions for warranty coverage. It&rsquo;s important for consumers to read the fine print of the warranty to see if an expansion tank is necessary. Even if an expansion tank isn&rsquo;t required for the warranty, it&rsquo;s usually mandated by building codes&mdash;although not for <a href="https://www.angi.com/articles/how-much-does-tankless-water-heater-cost.htm">tankless water heaters</a>.</p></div>

Q: What size wire should I use for a 30-amp hot water heater?

• <div><p>The <a href="https://www.angi.com/articles/wire-guage-amp-chart.htm">standard copper wire gauge</a> to use with any 30-amp circuit is a 10-gauge wire. The National Electric Code specifies a 10-gauge wire with appliances like water heaters running on 30 amps. If you try to use a smaller gauge wire, such as a 12 gauge, with a 30-amp breaker, you run the risk of the wire overheating and melting or causing a fire. Because of the safety hazards, the gauge of the wire is not an area to try to cut costs when connecting a 30-amp breaker to a water heater.</p></div>

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Verified Reviews for Water Heater Service pros in Sikeston, MO

*The Angi rating for Water Heater Service companies in Sikeston, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.

*The HomeAdvisor rating for Water Heater Service companies in Sikeston, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.

Last update on November 18, 2025

Find Water heater pros in Sikeston

Pobst Hardware & Farm Supply

5.00(

)

•Approved Pro

Pobst Hardware & Farm Supply

5.00(

)

•Approved Pro

Customers say: Quick response

Recommended by 100% of Angi customers

10 local quotes requested

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"I was so impressed not only with his knowledge but also his professionalism. He was incredibly cost efficient and was able to work me in so fast to get a much needed appointment completed. I will definitely be referring all of my friends and family."

Bretton S on December 2024

"I was so impressed not only with his knowledge but also his professionalism. He was incredibly cost efficient and was able to work me in so fast to get a much needed appointment completed. I will definitely be referring all of my friends and family."

Bretton S on December 2024

Neli Virtual Appliance Repair

Neli Virtual Appliance Repair

Customers say: Super punctual

29942 local quotes requested

9 years of experience

NEW! Appliance Consultation – Just $35 Get expert advice before you spend on repairs or replacements. A Neli technician will evaluate your issue and help you decide if your appliance can be fixed—or if it’s time for a new one. Virtual Appliance Diagnosis and Repair - Just $45 Service Description: Diagnose or repair your appliance virtually—no need for anyone to enter your home. Neli’s certified technicians guide you step-by-step via secure video chat. How It Works: Book online at nelihome.com or call 833-876-0900 Connect with a tech through our video platform Diagnose or fix the issue in real time Get expert advice and confidence in your next steps What’s Included: Real-time video guidance from a certified technician Diagnosis of the issue OR full repair (when possible) Step-by-step guidance using your smartphone or tablet Safe, contact-free service - no one in your home Flexible scheduling—appointments available daily Perfect For: Appliance fixes HVAC troubleshooting DIY-savvy homeowners Saving time and money on service calls

"Super helpful"

Michele H on November 2025

"Super helpful"

Michele H on November 2025

Ace Construction, Heating & Cooling

No reviews yet

Ace Construction, Heating & Cooling

No reviews yet

38 years of experience

Ace Construction, Heating & Cooling offers quality construction services for the Southeast Missouri Area. We are proud to work with each of our clients to bring skilled craftsmen and technicians to the building site based on the building plans, project requirements, as well as your heating and cooling needs. Whether you’re looking to remodel or repair, Ace Construction, Heating & Cooling can assist you with your needs

Werner Repair Services LLC.

No reviews yet

Werner Repair Services LLC.

No reviews yet

4 years of experience

Hello I am owner of Werner Repair Services and my business offers handyman services, from appliance repair to drywall repair. Most household maintenance I am the guy for you! I have over 8 years of appliance repair and HVAC experience along with plumbing and maintenance experience.

Construction, remodeling, repairs as many people as needed, cash, check, money order and can accept cards for fee

Hicks Roofing and Construction

No reviews yet

Hicks Roofing and Construction

No reviews yet

12 years of experience

Our company is equipped with the ability to fit the requirements that you need.

Krell Distributing Co Inc

No reviews yet

Krell Distributing Co Inc

No reviews yet

53 years of experience

Additional DBA - Krell Industries. Family owned & operated. Nationwide service.

Solar Wolf Energy

2.00(

)

Solar Wolf Energy

2.00(

)

10 years of experience

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Showing 1-10 of 32

Water Heaters questions, answered by experts

The lifespan of your water heater depends on the type of water. For traditional water heaters, you can expect it to last between 8 and 12 years if gas or 10 to 15 years if electric. Tankless water heaters can last up to 20 years with proper maintenance. The total number of years you’ll get out of your water heater depends on the maintenance it receives and how much it’s used.

Installing a water heater without a permit can result in high fines—as much as hundreds of dollars per day, in some areas. It can also void your homeowners' insurance and cause problems when selling your home because it violates local building codes and safety regulations.

According to the U.S. Department of Energy, tankless water heaters are anywhere from 8% to 34% more efficient than regular water heaters. Exactly how much energy you’ll save depends on your household’s water usage. When you purchase a tankless water heater, you’ll also likely upgrade to more efficient technology than your current water heater, which can add to energy savings.

Depending on the brand of water heater, you may need to install an expansion tank in order to meet the conditions for warranty coverage. It’s important for consumers to read the fine print of the warranty to see if an expansion tank is necessary. Even if an expansion tank isn’t required for the warranty, it’s usually mandated by building codes—although not for tankless water heaters.

The standard copper wire gauge to use with any 30-amp circuit is a 10-gauge wire. The National Electric Code specifies a 10-gauge wire with appliances like water heaters running on 30 amps. If you try to use a smaller gauge wire, such as a 12 gauge, with a 30-amp breaker, you run the risk of the wire overheating and melting or causing a fire. Because of the safety hazards, the gauge of the wire is not an area to try to cut costs when connecting a 30-amp breaker to a water heater.

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