The Homeowner's Almanac

Homeowner decision tool

Water heater: repair or replace?

Start with what you can observe. Seven short answers can help you decide what to compare or gather next.

This is decision guidance, not an inspection, diagnosis, or quote. A qualified professional can assess the unit and explain its condition on site.

Stop for urgent safety concerns

Get local help now if there is immediate danger.

A gas smell, carbon-monoxide alarm or concern, electrical hazard, flooding, or suspected contaminated water needs prompt attention outside this guide. If there may be immediate danger, move away and contact local emergency services or the relevant utility from a safe place. For suspected contaminated water, follow local water-authority or health-department guidance before using it.

An active water-heater leak also needs prompt assessment by a qualified professional. If water is spreading, near electrical equipment, or the area is unsafe, stay clear and seek urgent local help.

Do not use this tool to decide whether a safety concern can wait.

Your situation

What have you noticed?

Choose the closest answer for each question. “Not sure” is a useful answer. Age alone does not determine whether repair or replacement makes sense.

About how old is the water heater?

Check an installation record or label only if it is easy and safe to see. These broad ranges are context, not a replacement rule.

Can you see water actively leaking from the unit or nearby connections?
How often have you noticed less hot water than usual?
Can you see rust or corrosion on the outside of the unit or nearby piping?
What is the repair history you know about?
Are operating costs or efficiency a concern for you?
Is something worsening quickly, water spreading, or the area unsafe right now?

Keep the decision moving

Read the guide that fits your next question.

    Water Heater: Repair or Replace? Decision Tool | The Homeowner's Almanac