Do hot water heaters use a lot of electricity?

• <div><p>Electric water heaters use a high amount of electricity, so they’re best for homeowners who subsidize their electric bill with solar or who live in an area with inexpensive electricity. For others, <a href="https://www.angi.com/articles/gas-vs-electric-water-heaters.htm">gas water heaters versus electric water heaters</a> may be the more cost-effective solution, with the added bonus of heating water quickly and efficiently. No matter which you choose, you can lower your water temperature as low as possible to keep costs down.</p></div>

How much does it cost to convert a gas water heater to electric?

• <div><p>Converting a gas water heater to an electric one can cost <b>between $870 and $4,100</b>, depending on the installation scope, plumbing and electrical needs, and the water heater model. However, it’s always better to contact a local pro for a more accurate quote. Also, since natural gas is cheaper than electricity in most regions, you should prepare yourself for a higher monthly cost after the initial conversion. </p></div>

Get matched with top water heater pros in Copenhagen, NY

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: Which types of gas appliances might require installation or replacement services?

• <div><p>Examples include gas stoves, ovens, and water heaters. Confirm with your provider for specific items.</p></div>

Q: How big should a hot water heater expansion tank be?

• <div><p>The size needed for your expansion tank is determined by the size of your home's water heater. Expansion tanks are available in 2-gallon and 4.5-gallon sizes. A 2-gallon tank will be appropriate for water heaters up to 50 gallons. An adequately sized tank should have a volume that equals 2% to 5% of the water volume within the system. A plumber can evaluate your home's water pressure, water heater size, and other factors to provide suggestions for picking out the best expansion tank.</p></div>

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Verified Reviews for Water Heater Service pros in Copenhagen, NY

*The Angi rating for Water Heater Service companies in Copenhagen, NY 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 Copenhagen, NY 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 20, 2025

Reviewed in September 2013
They did excellent work and did it in a timely manner. They cleaned up afterwards and came back to make adjustments as we requested at no additional cost.
Plumbing & Cooling Nerds
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Reviewed in November 2012
I cannot comment of the purchase price since I did not contact other companies for quotes. The estimator was quick to respond to request for estimate. The technician was professional and very knowledgeable about the installation . The installation was done expeditiously. 530
BENJAMIN FRANKLIN PLUMBING
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Reviewed in December 2016
The system was installed quickly and he was very neat and professional,and the system was designed outside my home at his shop so he was able to make it very nice looking also!!! He will be coming back to my house very soon to also install a new upgraded hot water system also!!! I highly...
AJL Plumbing and Heating
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Reviewed in January 2015
Astar is great to work with. Everyone wants to be sure that everything goes well. They do what they say they will do, no questions asked. I highly recommend them.
Astar Heating & Air Conditioning Inc
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Reviewed in February 2020
We were delighted with the work that was done. They were very reasonable and prompt, professional, personable and courteous. We now have top quality equipment in our home with excellent warrantee and every confidence that if we have any problem, this company will respond promptly. We highly...
Henry H Cook
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Reviewed in September 2012
I discovered that my home was in need of much repair and updating. Some projects were necessary to maintain structural and functional integrity, but some things I choose to do for comfort and looks. Overall I had an excellent experience. The contractor stayed within the budget as quoted. ...
Robert Koerner Construction
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Reviewed in April 2020
I had a lot of various tasks addressed in my 1850's home in Victor. Indoor painting, deck staining, curtain rods hung, replacement of door hardware, refinishing an old closet, gutter work on small roof, replacement of dryer vent , odds and ends repair in the home. They replaced my water heater...
Mack Of All Trades
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Find Water heater pros in Copenhagen

JL Home Services

4.80(

)

•Approved Pro

JL Home Services

4.80(

)

•Approved Pro

Customers say: Quick response

10 years of experience

Free onsite estimate

Welcome to JL Home Services, proudly servicing Watertown, New York and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. Call us today! You will not be disappointed!

"The gentleman performed all the tasks that I requested. He was polite and eager to help. I would hire him again if needed. An excellent representative for Home Adviser!"

Joseph D on January 2025

"The gentleman performed all the tasks that I requested. He was polite and eager to help. I would hire him again if needed. An excellent representative for Home Adviser!"

Joseph D on January 2025

Neli Virtual Appliance Repair

Neli Virtual Appliance Repair

Customers say: Super punctual

30065 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

Fletchers contracting

No reviews yet

Fletchers contracting

No reviews yet

Free onsite estimate

Local company with great customer service. Offering heating, air conditioning, generators, electrical, and water heater installs or repairs.

JL Home Services

No reviews yet

JL Home Services

No reviews yet

18 years of experience

JL Home Services is a professional veteran owned Handy Man company. Specializing in plumbing and HVAC repair and installation. We value customer service, integrity, transparency, and honesty. We have 16 years of property management and homeservices in the Louisiana and Albany area. Every customer's home is treated like our own.

We are a small contracting service that dose residential and commercial work. We offer free estimates in Jefferson county. Call for availability and prices

Redneck Construction

5.00(

)

Redneck Construction

5.00(

)

Customers say: Quick response

Recommended by 100% of Angi customers

I have a crew of four that is skilled in the trade.been in business 4 about 2yrs but have 20 yrs exp.

SPH Services LLC

No reviews yet

SPH Services LLC

No reviews yet

15 years of experience

Handyman work, General Contracting services, with over 25 years experience. Fully insured. Our motto "No job too big, no job too small" We are a small husband and wife owned business, therefore able to offer competitive pricing while keeping the quality of work high. We have a dedicated well trained crew.

Austin Bros. Contracting

No reviews yet

Austin Bros. Contracting

No reviews yet

28 years of experience

Get The Right Guy The First Time The Registered Trade Mark That Was Produced By Our Customers,Literally I Had Customers Insist On Taking My Truck and Putting The Logo On The Truck,Only After Hearing,and I Quote"I Should Have Hire You Guys The First Time, Hundreds of Times I Then Agreed To Letting That Logo On My Truck,Now On The Other Trucks .In Short We Have Plenty Of References That In Itself Says Everything !

Jaer Baer Enterprises

No reviews yet

Jaer Baer Enterprises

No reviews yet

13 years of experience

We are a family owned and operated business , That have the right skilled professionals to get all you your contractor needs accomplished !! We have teams in multiple areas and we do use some subcontractors .. We do offer some payment options , we to offer promotions and discounts !!

Showing 1-10 of 34

Water Heaters questions, answered by experts

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.

Electric water heaters use a high amount of electricity, so they’re best for homeowners who subsidize their electric bill with solar or who live in an area with inexpensive electricity. For others, gas water heaters versus electric water heaters may be the more cost-effective solution, with the added bonus of heating water quickly and efficiently. No matter which you choose, you can lower your water temperature as low as possible to keep costs down.

Examples include gas stoves, ovens, and water heaters. Confirm with your provider for specific items.

The size needed for your expansion tank is determined by the size of your home's water heater. Expansion tanks are available in 2-gallon and 4.5-gallon sizes. A 2-gallon tank will be appropriate for water heaters up to 50 gallons. An adequately sized tank should have a volume that equals 2% to 5% of the water volume within the system. A plumber can evaluate your home's water pressure, water heater size, and other factors to provide suggestions for picking out the best expansion tank.

Converting a gas water heater to an electric one can cost between $870 and $4,100, depending on the installation scope, plumbing and electrical needs, and the water heater model. However, it’s always better to contact a local pro for a more accurate quote. Also, since natural gas is cheaper than electricity in most regions, you should prepare yourself for a higher monthly cost after the initial conversion.

The Copenhagen, NY homeowners’ guide to water heater services

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

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Do I Need a Hot Water Heater Expansion Tank?
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