How much does water expand in a water heater?

• <div><p>Water expands when heated and also when freezing. When water is heated, it expands by around 4%. For a full water heater, this is one of the main reasons malfunctions occur—the hot water has nowhere else to go but out. Due to the constant expansion and reduction in volume, it’s recommended (required in most places) that an expansion tank be installed. </p></div>

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>

Get matched with top water heater pros in Wister, OK

Q: How often are hot water heaters replaced?

• <div><p>Tank-style hot water heaters need replacing about every six to 15 years, while a tankless model can last 20 years or more. Over time, water heaters fill up with sediment that can start causing issues. If your unit is ten years old, start thinking about a possible replacement. <a href="https://www.angi.com/articles/how-often-should-i-flush-my-water-heater.htm">Flushing your tank-style water heater annually</a> and having routine maintenance done can increase the life span of the unit.</p></div>

Q: Are new water heaters better than old ones?

• <div><p>Newer models are packed with newer technologies that decrease energy consumption and increase output, giving you more bang for your buck in more bills than one. </p><p>If you&rsquo;re trying to decide whether you want to repair or replace your new heater, consider factors like your utility bills, repair costs, and even your carbon footprint to help you decide whether it makes sense to buy a new one instead.</p></div>

Q: Does an electric water heater need its own circuit breaker?

• <div><p>A water heater is one of the heaviest hitters in your home, and it needs as much power as possible to help it run efficiently and effectively.</p><p>Your water heater should be on its own dedicated circuit breaker, with no other power sources running to it. This is required to meet the National Electric Code&ndash;and to ensure it runs as efficiently as possible.</p></div>

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Verified Reviews for Water Heater Service pros in Wister, OK

*The Angi rating for Water Heater Service companies in Wister, OK 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 Wister, OK 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 22, 2025

Reviewed in June 2025
They redone our gravel driveway, cut down a hill in front of our house to stop the water, diverted all water around the sides of our house, put in several areas of rip rap rock.
Dubb Trucking and Construction, LLC
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Reviewed in November 2023
These men were very helpful in prep us for the job. They did a temporary hook up so that we would have water at night when we were at home and worked on the wiring and plumbing during the day when we were gone. We experienced little to no inconvenience. We highly recommend them.
Spin Pumps LLC
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Reviewed in October 2023
Did a very professional job on installation on my new heater thank u all very much
Advantage Heating & Air
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Reviewed in May 2023
This was the absolute worst company to deal with. A week without hot water, close to $600 lighter and 2 trips from 2 different plumbers from this same company, we are no better off. Neither plumber that came out spent longer than 5 min with the tank and the office got rude, defensive, and...
Whitehead Plumbing LLC
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Reviewed in January 2018
Our 20+ year old heater quit working on a Sunday. Country Comfort arrived promptly on Monday morning. After they inspected the unit we discussed repair vs. new unit. They answered all our questions and left us with a quote with several options for a new HVAC. No pressure to decide on the spot;...
Country Comfort Heating & Air
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Reviewed in May 2014
called crow refidgeration from Davis, OK he came out and didnt do much inspecting and told us what was wrong and the price would be "around" $500.00 but didnt show up to do the job and we needed it ASAP so we decided to call red & blue heating and air. The owner Brent Riner came out did plenty...
Red and Blue Heating & Air
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Reviewed in April 2014
I called to get the icemaker repaired. Bob was punctual, very friendly, and ending up fixing the water dispensor as well, which hadn't worked in years. The price was very reasonable. I will most definitely call this repairman for all my future appliance repair needs.
Bob's Appliance Repair Co
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Reviewed in October 2013
Gary Henry and his helper came on a moment's notice to switch out our water well pump. That went well and even looked at one of my frost-free spigots that had lost water pressure. Fixed it for nothing and showed me how to fix it if needed in the future.
Henry's plumbing
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Find Water heater pros in Wister

Neli Virtual Appliance Repair

Neli Virtual Appliance Repair

Customers say: Super punctual

Recommended by 94% of Angi customers

29488 local quotes requested

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

"Did a great job "

Don F on November 2025

"Did a great job "

Don F on November 2025

Happy at Home Plumbing LLC.

No reviews yet

Happy at Home Plumbing LLC.

No reviews yet

Free onsite estimate

Engages in the provision of plumbing services, including installation, repair, and maintenance of plumbing systems for residential and commercial clients. Specializations include pipe repairs, fixture installations, and water heater services.

Krell Distributing Co Inc

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Krell Distributing Co Inc

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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!

Okie Plumbin Services

5.00(

)

Okie Plumbin Services

5.00(

)

Recommended by 100% of Angi customers

Locally owned and operated in Sulpher since 1994. Okie Plumbin' Services specializes in general plumbing, commercial or residential. Offering over 20 years of experience, Okie exceptional customer service and guaranteed satisfaction.

All Service Handy

No reviews yet

All Service Handy

No reviews yet

13 years of experience

All Service Handy is a privately owned company established on March 25, 2012. A.S.H. is a proffesional handyman business which provides general contracting for a broad range and variety of jobs for home improvement and construction. All of us here at A.S.H. take pride in our work offering our personal time to ensure and develop a friendly relationship and a comfortable experience. We strive to continue being a leader and example in providing excellent customer satisfaction and 100% QUALITY guaranteed.

Owner operator for 15 years. Roof repair & replacement, fence repair/replacement, full kitchen & bath remodel, interior/exterior remodel, windows, doors, and floors. Insured. Financing options available. Accepting major credit cards.

First Choice Improvements

2.33(

)

First Choice Improvements

2.33(

)

Customers say: Super punctual

43 years of experience

Premium quality products. Factory direct, lowest everyday pricing. Ask about our seasonal specials.

Showing 1-10 of 28

Water Heaters questions, answered by experts

Water expands when heated and also when freezing. When water is heated, it expands by around 4%. For a full water heater, this is one of the main reasons malfunctions occur—the hot water has nowhere else to go but out. Due to the constant expansion and reduction in volume, it’s recommended (required in most places) that an expansion tank be installed.

Tank-style hot water heaters need replacing about every six to 15 years, while a tankless model can last 20 years or more. Over time, water heaters fill up with sediment that can start causing issues. If your unit is ten years old, start thinking about a possible replacement. Flushing your tank-style water heater annually and having routine maintenance done can increase the life span of the unit.

Newer models are packed with newer technologies that decrease energy consumption and increase output, giving you more bang for your buck in more bills than one.

If you’re trying to decide whether you want to repair or replace your new heater, consider factors like your utility bills, repair costs, and even your carbon footprint to help you decide whether it makes sense to buy a new one instead.

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.

A water heater is one of the heaviest hitters in your home, and it needs as much power as possible to help it run efficiently and effectively.

Your water heater should be on its own dedicated circuit breaker, with no other power sources running to it. This is required to meet the National Electric Code–and to ensure it runs as efficiently as possible.

The Wister, OK homeowners’ guide to water heater services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

Allie Ogletree
•
May 2, 2025May 2, 2025
How Much Does a Tankless Water Heater Cost? [2025 Data]
Tankless water heater costs depend on the size of your water heater, location, fuel type, and more. Keep reading to calculate your expenses.
Timothy Moore
•
May 29, 2025May 29, 2025
How Much Does a Water Heater Expansion Tank Cost? [2025 Data]
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.
Scott Dylan Westerlund
•
Jun 3, 2025Jun 3, 2025
How Much Does It Cost to Repair a Hot Water Heater? [2025 Data]
Running out of hot water too quickly or hearing strange noises when you call for hot water? Use this water heater repair cost guide to see what a fix will cost.
Kyle Schurman
•
Apr 22, 2025Apr 22, 2025
Do Electric Water Heaters Need to Be Vented?
Do electric water heaters need to be vented? Because they don’t use combustion, there’s no need to connect these appliances to a venting system.
Amy Freeman
•
Apr 13, 2025Apr 13, 2025
8 Signs You Need a New Water Heater
What are some signs you need a new water heater? Get a look at the common signs your water heater needs to be replaced because damage is beyond repair.
Mitchell Grant
•
Apr 21, 2025Apr 21, 2025
What Size Water Heater Do I Need for My Home?
What size water heater you need depends on the number of people in your household and how much water you use. Keep reading to learn about water heater sizing.