Will a plumber flush a hot water heater?

Author: Cynthia Macejkovic  |  Last update: Sunday, July 13, 2025

Expect your local plumber to have a minimum charge for servicing your water heater. It takes around one to three hours to flush a water heater, so you'll spend between $45 and $600 if you hire a professional.

How much does it cost to flush a hot water heater?

Flushing a tank water heater costs $75 to $150, while tankless water heaters cost $150 to $250 to flush. The cost of flushing a water heater depends on the tank size, type of water heater, labor costs, and additional tasks performed by the plumber.

Is it worth flushing a water heater?

It is recommended that you flush your water heater at least once per year. Doing so will help to prevent the potential problems that sediment can bring over time. Typically, it takes one to two hours to flush a water heater. The size of your tank will impact the amount of time it takes to drain.

Who do you call to flush your water heater?

Plumber offers professional water heater flushes – to schedule one or learn about plumbing maintenance for your home, give us a call today!

Can a plumber work on a water heater?

plumbers typically install hot water heaters. Installing a hot water heater involves both plumbing and electrical work, and professional plumbers are trained and experienced in handling these installations.

Should I flush my water heater? - Master plumber explains

Do you call a plumber for a water heater?

The short answer is that plumbers typically service water heaters, whether it's gas or electric. An electrician may also be able to fix an electric hot water heater, assuming the problem is electrical.

How much does it cost for a plumber to look at a water heater?

In general, plumbers cost $45 to $200 per hour, while electricians cost $50 to $100 per hour. Expect the following average price ranges for labor alone: Replacing a tank-style water heater: $150–$450. Replacing a tankless water heater: $600–$1,850.

Can I flush my hot water heater myself?

You can flush your water heater yourself if it's done on a regular basis. This guide will take you through the steps to drain and flush a gas or electric water heater. Learning how to clean a water heater is an essential part of maintaining your plumbing system.

How do I know if my water heater needs to be flushed?

Keep an eye out for debris suddenly showing up in your water. If you notice sediment or any brown sludge coming out of your faucet, that's probably an indication that it's time for a water heater flush. If you see any of these signs, it's a good indication that your water heater needs maintenance.

How much does a plumber charge to drain a water heater?

The national average cost to flush a water heater is $160, but prices can vary in increments based on the tank size. A 30-gallon tank will cost between $90 and $120 on average, while a 70-gallon tank could cost anywhere between $180 and $250.

What happens if you never flush your water heater?

-Reduced Efficiency: As scaling collects at the bottom of the tank, your water heater will become less effective at heating the water in the tank. -Corrosion: If your water heater goes long enough without a proper flush, you could also have corrosion attacking the tank itself, weakening its structural integrity.

Should I flush a 5 year old water heater?

If neither you nor a professional have flushed your water within the last five years, Water Heaters Now recommends not flushing it yourself. If you flush a water heater that already has a significant sediment buildup, it can actually cause more problems.

How to tell if your hot water heater is full of sediment?

Common signs that sediment buildup is significant include bubbling and gurgling sounds and diminished hot water when bathing, cooking, or cleaning. You may also notice water discoloration, a leaking pressure relief valve, or cracks in the tank or its connections.

Is $250 a high price to flush a water heater?

For a professional flush, homeowners can expect to spend between $100 and $300, including any additional maintenance services required. On the other hand, DIY flushing costs can range from $30 to $100, depending on the flushing kit purchased. The cost of flushing a tankless water heater depends on various factors.

How often should I change the anode rod in my water heater?

The frequency of anode rod replacement depends on several factors, such as water quality, usage patterns, and the type of anode rod installed. In most cases, we recommend inspecting and potentially replacing the anode rod every 3 to 5 years.

How much is labor to remove and replace a hot water heater?

For a standard tank-style heater, you can expect to pay between $600 and $1,000 for the unit itself, and an additional $500 for the installation labor. If you have a tight budget, it may be possible to find a used water heater for sale.

What are the signs of water heater going bad?

Water heaters show several signs of going bad, including lack of hot water, temperature fluctuations, decreased water pressure, strange noises, rotten egg smell, visible leaks, rusty or discolored water, and increased energy bills. If your water heater is over 10 years old, it may be time to consider a replacement.

Is there supposed to be water at the bottom of my water heater?

Ideally, the pan should be dry, but if you find water in it, that means your water heater is leaking. Why is your hot water leaking? Leaks can happen for several reasons. Sometimes the problem is serious and you may need to replace the entire unit, and other times, the leaks are totally fixable.

How long does a water heater take to flush?

On average, flushing a water heater takes about one to two hours, depending on the tank size and the amount of sediment to be removed. This is slightly longer than it takes to drain the tank as you add another step to the process.

Can I drain my hot water heater by myself?

Open the hot water tank drain valve. Let the water run out the garden hose. This can take 20 to 60 minutes, depending on how big the tank is. Be careful not to damage or break the drain valve when you open and close it.

Is a 30 year old water heater safe?

Sometimes, you'll just need repairs, but serious issues call for replacement. For example, a 30-year-old water heater certainly needs to be replaced, but a younger one with a minor problem may be able to get by with some simple repairs.

How to tell if a water heater is full?

You'll know when your water tank is full when the hot water tap, which you turned on earlier, runs normally without any residual air coming out.

Does home insurance cover a water heater?

It's important to note that standard homeowners insurance policies typically only cover damage to the structure of your home and personal property. They do not include replacement cost coverage for the heater itself.

Should I have a plumber flush my water heater?

The best way to protect your investment is to have your water heater serviced annually by a licensed plumber. A good plumber will conduct a full inspection for rust, leaks and other problems, test the thermostat and valves, replace the anode rod to prevent corrosion and flush the tank.

Do you call a plumber to fix a hot water heater?

The Final Verdict

In most cases, you will want to call a plumber to handle water heater problems, but if there is an electrical problem related to your water heater, then a professional electrician would be the better person to call.

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