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Reasons It's Time to Flush Your Water Heater
Reasons It's Time to Flush Your Water Heater
4.8 RATING

Reasons It's Time to Flush Your Water Heater

Over time, water heaters collect sediment, silt, and minerals that settle at the bottom of the tank. If you neglect to flush your water heater…

June 13, 2026
Reasons It's Time to Flush Your Water Heater

Over time, water heaters collect sediment, silt, and minerals that settle at the bottom of the tank. If you neglect to flush your water heater regularly, several issues can arise. That’s why it is recommended to flush your water heater at least once a year. Flushing is an essential part of water heater maintenance as it removes sediment and minerals that build up in the tank, which can reduce the efficiency of your water heater and shorten its lifespan. If you have hard water, you may want to flush your water heater more often, every six months to once a quarter.

How to Tell if Your Water Heater Has Sediment Build-Up

Here are the signs that your water heater may need to be flushed:

  • Your hot water is rusty
  • Reduced water pressure
  • Loud noises
  • Your water heater is leaking
  • Reduced hot water flow
  • Fluctuating water temperature
  • Longer heating times
  • Smelly hot water

Schedule Your Water Heater Service Today

If you’re looking for a professional plumbing service that offers top-notch water heater services, look no further than Mr. Rooter Plumbing. From tankless water heater installation to repairs and routine water heater maintenance, our plumbers have the skills and experience to do an exceptional job.

Our Customers Reviews

Chahib Chakrome

Summit, NJ

The service provided was great, nothing to say about the work of the plumber. 5 stars to him. But the company charges felt way too much for the work. We would have liked to have the same plumber take care of other things in the house, but every time he check how much extra the company will charge for the job, the price just got too much. The plumber did an amazing job he selected a beautiful faucet to replace our old one. He did his best. But the company prices have no room for negotiation.

Tiffany DeSande

Plainfield, NJ

A million stars!!!! Steve and Lucas were absolutely amazing. My parents pipes burst and within 4 hours of calling they came and fixed everything!!! Very nice guys and dealt with my panicking. I will always use them if needed in the future and you all should too!!! Thank god for people like this!!! Thank you so much guys!!!

Naomi Langer-Seltzer

New Brunswick, NJ

We got very quick service, I think the plumber actually arrived in less than an hour! After reviewing what was happening, he gave us our options and performed the option we selected. This happened in the late afternoon or early evening. It was already dark and there was a lot of snow on the ground.

Steve Smith

Mountainside, NJ

I needed immediate, same day service in the early evening at my home. I went to the internet and looked up plumbing services that offered "24-hour, 7-day a week" availability. The first 3 places I called said that they could not get to me until the following day. Then I called Mr. Rooter. They were courteous and promptly got a technician to my house within an hour and a half. The technician, Lucas Kaufmann, was exceptional. The job was not easy, but he figured the problem out and got me all fixed up within an hour's time. Moving forward, I…

Stephanie Brown

Cranford, NJ

Despite what was quite obviously a busy day (day after Thanksgiving at 10pm) TJ came out and did not leave until the job was done! There were several setbacks, which at the late hour might have prompted him to leave- but he chose to stay and continue until the job was complete! I only have one bathroom so I was really hoping he could make it work, and he really did a wonderful job! So thankful for all of his help! I highly recommend TJ!

Shaheen Dhanani

Union, NJ

This is my second time using Mr. Rooter and I have to say they are an excellent company of experienced professionals! The service techs were courteous, experienced and actually spent time trying to figure out the issue before proposing the solution. They were also patient and answered all my questions without rushing the work. I will be using them again.

Christie Murphy

Montgomery, NJ

TJ was amazing! 10/10 recommend this company. We were in an emergency state of panic with a burst pipe in the middle of a bad snowstorm. TJ came with knowledge, professionalism, kindness, and found the root of the problem within five minutes of being here. We will be using him again in the spring to fix an outdoor issue he found!

Alan Abraham

Clark, NJ

The technicians were friendly, professional and knowledgeable. The price was too high I believe, but the technicians had no control over that. The technicians took their time and did a great job. I would use them again and also recommend them.

Amy Swart

Berkeley Heights, NJ

Excellent service! Charles and Nicholas of Mr. Rooter arrived to my scheduled service a few minutes early, wore sanitary shoe coverings, and were extremely professional. They found the source of my leak quickly and fixed the issue. While they here, I requested an additional hydraulic heating inspection which they accommodated. They were very knowledgeable and provided helpful tips. I highly recommend this team and I will definitely call them for all future plumbing needs!!

JACKY Coppola

Wall Township, NJ

TJ came to my aid as the water pipe froze in my house. Although nothing could be done he gave me hints of what could be done my me which was very helpful. I found TJ very professional and caring about my situation. The best part of the very long night was the dogs adored him one wanted to accompany him to his next job. Thank you for employing such an amazing man. Plus today there is water running in the house. Thank you TJ and thank you Mr. Rooney plumbing for employing a man with helpful hints!!!!!

In today’s blog post, Mr. Rooter Plumbing outlines the top 5 reasons to flush your water heater regularly. Remember, Mr. Rooter Plumbing is the go-to plumbing service for tankless water heater installation and other water heater services.

  • Improve Heating Efficiency

Over time, sediment and minerals tend to accumulate at the bottom of your water heater tank, acting as an insulating layer that hinders heat transfer. Flushing your water heater removes this buildup; hence, it allows the heating element to work more efficiently. This results in faster heating times and reduced energy consumption.

  • Increase its Life Expectancy

Sediment buildup not only impedes heating efficiency but also contributes to corrosion and rust, which can prematurely damage your water heater tank and other components. Regular flushing helps prevent these issues, prolonging the lifespan of your water heater and saving you money on costly water heater repair and replacement.

  • Lower Your Energy Bills

When a water heater is affected by sediment buildup, it has to work harder to heat the water. This increased workload results in higher energy consumption and, consequently, higher utility bills. Flushing your water heater directly translates to lower energy costs. With sediment removed, your water heater requires less energy to heat water.

  • Eliminate Noise

Sediment in the tank can cause popping or rumbling noises as the water heater works to heat water through the insulating layer. Regular flushing helps eliminate these noises by removing the sediment that causes them. This not only improves the comfort of your home by reducing disruptive sounds but also indicates a healthier and more efficient water heating system. If you hear odd noises coming from your water heater, reach out to a professional plumbing service for an inspection.

  • Maintain Warranty Protection

Many water heater warranties stipulate regular flushing as a condition for coverage. Neglecting to flush your water heater could void your warranty, leaving you liable for water heater repair or replacement costs. By flushing your water heater according to the manufacturer's guidelines, you ensure that you maintain warranty protection and have support in case any issues arise during the warranty period.

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