A water heater is an indispensable appliance that supplies hot water for daily activities such as bathing, cooking, and cleaning. Most water heaters have a lifespan of around 8 to 12 years but wear and tear can lead to the need for a replacement sooner. Understanding when and how to replace a water heater is crucial to avoiding unexpected breakdowns. This blog explains how professional plumbers handle water heater replacement, the signs indicating a failing unit, and the costs involved.

Signs That a Water Heater Needs to Be Replaced

Water heaters give several warning signs when they are nearing the end of their lifespan. It is essential to recognize these signs early to prevent more severe problems, such as leaks or complete failure:

1. Age of the Water Heater: If the unit is more than 10 years old, it is approaching the end of its lifespan, and a replacement should be considered.

2. Rusty or Discolored Water: If the hot water appears rusty or has an unusual color, the interior of the tank may be corroding, which indicates that replacement is imminent.

3. Inconsistent Hot Water: A unit that struggles to maintain hot water or runs out of it quickly might be failing.

4. Strange Noises: Loud bangs or rumbling sounds can signal sediment buildup in the tank, reducing energy efficiency and potentially damaging the unit.

5. Water Leaks: Visible leaks around the tank or any pooling of water are serious issues that indicate the water heater needs immediate attention.

6. Increased Energy Bills: If the water heater is losing efficiency, it will work harder to heat water, resulting in higher energy bills.

water heater

Step-by-Step Process of Water Heater Replacement

Replacing a water heater is a complex job that requires professional expertise to ensure safety and compliance with local codes. Below is the process a licensed plumber typically follows when replacing a water heater:

1. Turn Off the Power and Water Supply

The first step is to shut off the power source to the water heater. For electric water heater models, this involves turning off the circuit breaker. 

Meanwhile, for gas water heaters, the gas valve is closed. The water supply is also turned off.

2. Drain the Tank

The plumber attaches a hose to the drain valve to remove all the water from the tank. This step is necessary to ensure that the old heater can be safely disconnected and moved.

3. Disconnect Water, Gas, or Electrical Connections

Once the tank is empty, the plumber disconnects the cold and hot water lines. If you have a gas water heater, the gas line is detached, while electric models require the disconnection of electrical wires.

4. Remove the Old Water Heater

The old unit is carefully removed from its position. If it’s large, extra assistance or specialized tools may be needed to maneuver it out safely.

5. Install the New Water Heater  

The new unit is positioned in the same location, ensuring proper alignment. The plumber checks that the heater is level and securely in place.

6. Reconnect Water, Gas, or Electrical Lines

The professional plumber reconnects the water lines, using the appropriate materials to prevent leaks. Gas or electric connections are also reattached and properly sealed.

7. Fill the Tank and Test the System

After everything is connected, the plumber turns on the water supply to fill the tank, checking for leaks. Once the tank is full, the power or gas is turned back on, and the unit is tested to ensure it operates effectively.

Related: Fixing Gas Water Heater Ignition Problems: A Comprehensive Guide

plumber doing water heater replacement

How Much Does It Cost to Replace a Water Heater?

Hot water heater replacement cost depends on several factors, including the type (tank or tankless water heater), the size of the unit, and labor costs. According to Thumbtack, the average national water heater replacement cost ranges from $1,726 and $2,587.

The installation cost of standard tank water heaters usually go between $500 and $1,500, while tankless water heaters range from $1,000 to $2,500 due to their advanced, more energy-efficient technology. Professional plumbers typically charge $200 to $500 for labor, depending on the complexity of the installation and local rates. 

Your Trusted Partner in Water Heater Replacement

A reliable water heater is crucial for the comfort and efficiency of any household. If you’ve noticed any signs of concern, it’s time to consider a replacement to avoid unexpected breakdowns and costly water heater repair. For professional water heater replacement, Stellar Plumbing in Prescott, AZ, is here to help. Our experienced plumbers ensure your installation is handled safely and meets all local codes.

Don’t wait until it’s too late, contact us today for expert water heater installation and peace of mind.