How long does it usually take to install a water heater?

• <div><p>It usually takes a professional water heater installer between <b>two and three hours</b> to remove an existing water heater and install a new tank heater. However, it could take <b>four to five hours</b> if they have to work in a small utility closet or another tight area, like a crawl space. <a href="https://www.angi.com/articles/what-are-pros-and-cons-tankless-water-heaters.htm">Tankless water heaters</a> have a more complicated installation process, so they will take a bit longer. Additionally, a gas water heater requires a connection to a gas line, and that alone can add about an hour to the installation timeline compared to installing an electric water heater.</p></div>

Are hybrid water heaters noisy?

• <div><p>Yes, hybrid water heaters can be noisy — noisier than traditional water heaters. The sound they produce is often compared to the hum of a dishwasher. Its noise comes from the heat pump’s fan and compressor as they work to pull in and compress the air. While it’s not totally disruptive, especially if the unit is installed in less frequented areas, like a basement or garage, it’s something to keep in mind if you’re sensitive to noise or if the unit will be placed near bedrooms or living spaces.</p></div>

Get matched with top water heater pros in Advance, MO

Q: Are hot water heater expansion tanks necessary?

• <div><p>While many older homes don&rsquo;t need hot water heater expansion tanks, they&rsquo;re necessary in most newer homes and are required by building codes. These tanks are required by code in areas where there are backflow preventers or pressure regulators on the incoming water pipe between the public water pipes and the water heater. However, tankless water heaters don&rsquo;t require expansion tanks.</p></div>

Q: Are hybrid water heaters noisy?

• <div><p>Yes, hybrid water heaters can be noisy &mdash; noisier than traditional water heaters. The sound they produce is often compared to the hum of a dishwasher. Its noise comes from the heat pump&rsquo;s fan and compressor as they work to pull in and compress the air. While it&rsquo;s not totally disruptive, especially if the unit is installed in less frequented areas, like a basement or garage, it&rsquo;s something to keep in mind if you&rsquo;re sensitive to noise or if the unit will be placed near bedrooms or living spaces.</p></div>

Q: How often should a gas water heater be replaced?

• <div><p>You should replace your gas water heater when it&rsquo;s reached the end of its lifespan, which is a maximum of 12 years in most cases. If your unit is over a decade old and showing signs of inefficiency, leaks, or frequent malfunctions, it may be time to <a href="https://www.angi.com/articles/how-to-replace-gas-water-heater.htm">replace your water heater</a>. Research how to best maintain your gas water heater to help extend its lifespan.</p></div>

Q: Can you vent a gas water heater out the side of the house?

• <div><p>You can and should vent the gas from your hot water heater to the outside of your home. Traditionally, these gases were vented back to other gas appliances, like stoves or furnaces, but many jurisdictions have outlawed this practice due to the risks it provides. </p><p>Most water heaters today use atmospheric venting that exhausts the gas out of the home through a pipe.</p></div>

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Verified Reviews for Water Heater Service pros in Advance, MO

*The Angi rating for Water Heater Service companies in Advance, 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 Advance, 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 December 07, 2025

Find Water heater pros in Advance

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

11 years of experience

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

Handy Steve

5.00(

)

•Approved Pro

Handy Steve

Customers say: Quick response

Recommended by 100% of Angi customers

60 local quotes requested

At Handy Steve, we understand that your home is your sanctuary. That’s why we’re dedicated to providing top-notch handyman services to keep it running smoothly. Our team of experienced professionals is equipped to handle a wide range of home maintenance and repair tasks, ensuring that every job is done right the first time.

"Finished product is very nice. Not one difficulty with Mr. Dodson. Would definitely recommend him for deck building. Cape Girardeau seems to delight in building codes to make things difficult. Mr. Dodson navigated through the system despite the city doing its best to frustrate the builder."

Gordon H on June 2025

"Finished product is very nice. Not one difficulty with Mr. Dodson. Would definitely recommend him for deck building. Cape Girardeau seems to delight in building codes to make things difficult. Mr. Dodson navigated through the system despite the city doing its best to frustrate the builder."

Gordon H on June 2025

Neli Virtual Appliance Repair

Neli Virtual Appliance Repair

Customers say: Super punctual

27980 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

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 33

Water Heaters questions, answered by experts

While many older homes don’t need hot water heater expansion tanks, they’re necessary in most newer homes and are required by building codes. These tanks are required by code in areas where there are backflow preventers or pressure regulators on the incoming water pipe between the public water pipes and the water heater. However, tankless water heaters don’t require expansion tanks.

It usually takes a professional water heater installer between two and three hours to remove an existing water heater and install a new tank heater. However, it could take four to five hours if they have to work in a small utility closet or another tight area, like a crawl space. Tankless water heaters have a more complicated installation process, so they will take a bit longer. Additionally, a gas water heater requires a connection to a gas line, and that alone can add about an hour to the installation timeline compared to installing an electric water heater.

Yes, hybrid water heaters can be noisy — noisier than traditional water heaters. The sound they produce is often compared to the hum of a dishwasher. Its noise comes from the heat pump’s fan and compressor as they work to pull in and compress the air. While it’s not totally disruptive, especially if the unit is installed in less frequented areas, like a basement or garage, it’s something to keep in mind if you’re sensitive to noise or if the unit will be placed near bedrooms or living spaces.

You should replace your gas water heater when it’s reached the end of its lifespan, which is a maximum of 12 years in most cases. If your unit is over a decade old and showing signs of inefficiency, leaks, or frequent malfunctions, it may be time to replace your water heater. Research how to best maintain your gas water heater to help extend its lifespan.

You can and should vent the gas from your hot water heater to the outside of your home. Traditionally, these gases were vented back to other gas appliances, like stoves or furnaces, but many jurisdictions have outlawed this practice due to the risks it provides.

Most water heaters today use atmospheric venting that exhausts the gas out of the home through a pipe.

The Advance, MO homeowners’ guide to water heater services

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