How long does it take to replace an electric water heater?

• <div><p>The amount of time it takes to replace an electric water heater will depend on the skill level of the individual who is replacing it. For example, if you replace it yourself–and you don’t have much experience–you can expect the project to take a full day. </p><p>However, if you have a certified plumber or water heater contractor install your new water heater, it can take as little as 2 to 3 hours.</p></div>

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Q: What are the different types of water heaters available for installation?

• <div><p>Storage, tankless, heat pumps, and solar water heaters each suit specific space constraints, usage needs, and efficiency preferences.</p></div>

Q: What maintenance is needed for a new water heater?

• <div><p>Flushing biannually, checking the anode rod, and temperature settings maximize equipment lifespan while reducing surprise costs.</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>

Q: How long does it take to install a new water heater?

• <div><p>Professional installs conclude in mere hours, with complexity differences possibly prolonging efforts slightly. Site condition often dictates the exact duration.</p></div>

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Verified Reviews for Water Heater Service pros in Marcus, IA

*The Angi rating for Water Heater Service companies in Marcus, IA 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 Marcus, IA 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 June 27, 2026

Reviewed in June 2026
The contractor did a great job! We are very pleased with our new driveway. They are experienced and are very dependable. We highly recommend R & J Concrete!
R & J Concrete
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Reviewed in October 2024
I hired Cornbelt Concrete & Construction to pour a basement foundation, basement floor, garage footings, garage floor, and driveway approach for my new house and garage. They were professional, prompt, and did a high quality job! I would recommend them to anybody!
Cornbelt Concrete and Construction, LLC
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Reviewed in February 2024
They showed up, explained in detail how the carpet would be installed. They ran me through the steps of seaming carpet, stretching and finishing tips. I would hire this crew again for future projects!
Brimm Bros. Flooring
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Reviewed in November 2023
Brian helped me redesign the layout of my kitchen, installed new cabinets, and an island.
Kitchen Design Guys TN
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Reviewed in February 2023
Nov 2021- roof replaced. There were so many nails around my yard I lost count. Dec 2021 parts of said roof on two of the 3 structures blow off due to faulty installation. Debris all over the entire neighborhood, nails all over after we just cleaned up what was left after install, shingles in...
1-800 Hansons
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Reviewed in January 2023
Felt confident that they were the right ductwork company for us! Arrived on time and never stopped working the entire time they were here. I was able to be in the house while they were here so I witnessed their work ethic in doing a quality job for us. Really felt they went the extra mile in...
Swick's Duct Cleaning
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Reviewed in August 2022
They did a great job power washing my roof, home and fence!
Omaha Pro Power Plus Services, LLC
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Reviewed in October 2021
The contractor was always in contact with me and did a beautiful job.
Gonzalez Contractors LLC
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Reviewed in April 2021
They were very professional. They did everything in a timely manner. Even did a great job making my walls smooth, no texture just as I wanted. Creative way to access the water pipes for upstairs and looks very nice.
Dominguez Construction 3:16
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Reviewed in October 2015
Kevin was on time, went right to work. I had concerns of the water in the tank of the stool in the bathroom so he checked that also.
Clean Water Guys Inc.
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Find Water heater pros in Marcus

American Home Shield – Home Warranty

3.5(

5,689

)

Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Marcus, IA and surrounding areas

In business since 1971

Credit card accepted

"We pay yearly but we have this is included with our rental property. They are pretty good on most things. We had a hot water heater replaced and they did an excellent job on that. They are very quick on their response. They dont come out here. It is all done on the internet. I just like the idea that one time service charge is so much better than trying to hiring someone to come in. It is more about convenience. It pays for itself."

Recommended by65%of homeowners

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A+ Plumbing Solutions, LLC

5.0(

)

Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Marcus, IA and surrounding areas

In business since 2024

Small jobs welcome

Credit card accepted

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!

Response time2 days

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M.T. Plumbing

New to Angi

Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Marcus, IA and surrounding areas

In business since 2000

Free estimates

Credit card accepted

With years of experience in the industry, we are the experts you need to take care of your home or business. We handle all of your plumbing needs with great care. We will treat your home as we would treat our own. Give M.T. Plumbing a call today, we look forward to working with you!

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Water Heaters questions, answered by experts

Storage, tankless, heat pumps, and solar water heaters each suit specific space constraints, usage needs, and efficiency preferences.

Flushing biannually, checking the anode rod, and temperature settings maximize equipment lifespan while reducing surprise costs.

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.

The amount of time it takes to replace an electric water heater will depend on the skill level of the individual who is replacing it. For example, if you replace it yourself–and you don’t have much experience–you can expect the project to take a full day.

However, if you have a certified plumber or water heater contractor install your new water heater, it can take as little as 2 to 3 hours.

Professional installs conclude in mere hours, with complexity differences possibly prolonging efforts slightly. Site condition often dictates the exact duration.

The Marcus, IA 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

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The Pros and Cons of Hybrid Water Heaters
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How Long Do Water Heaters Last?
The average lifespan of water heaters is 6 to 15 years for conventional models and up to 20 for tankless ones, but it can be less if they are not properly maintained.