7 Warning Signs It’s Time to Replace Your Water Heater

If your water heater is acting up, you may be wondering whether it just needs a repair—or if it’s time for a full replacement. Knowing the signs can save you from sudden cold showers, water damage, and costly emergencies.

In this article, we’ll cover the top signs it’s time to replace your water heater, how long most water heaters last, and what you can do next.

🔍 Common Searches This Article Answers:

• When should I replace my water heater?

• Signs your water heater is going bad

• How to know if you need a new water heater

• Water heater leaking or not heating

• Water heater lifespan and replacement cost

💡 How Long Does a Water Heater Last?

The average lifespan of a traditional tank water heater is 8 to 12 years.A tankless water heater typically lasts 15 to 20 years with proper maintenance.

If your unit is approaching the end of its life, keep an eye out for these signs 👇

🚨 7 Signs It’s Time to Replace Your Water Heater

1. Inconsistent or No Hot Water

If your water suddenly turns cold mid-shower or takes forever to heat up, your water heater may be struggling to do its job.

🔧 Possible causes: sediment buildup, failing heating element, or broken thermostat.📌 When it’s persistent, it may be time for replacement.

2. Rusty or Discolored Water

Brown, red, or cloudy water from your hot taps can mean internal rust—especially if it’s only from the hot side.

☣️ Rust inside the tank is a clear sign of corrosion, which usually means your tank is deteriorating and could leak soon.

3. Strange Noises

Hearing popping, banging, or rumbling noises? That’s likely sediment buildup hardening at the bottom of your tank.

👂 These noises indicate that the heater is working harder and less efficiently, shortening its lifespan.

4. Leaks Around the Tank

Any signs of pooling water, drips, or corrosion around the base of your water heater are a serious red flag.

💧 Small leaks can become big water damage problems quickly. In most cases, a leaking tank cannot be repaired and must be replaced.

5. Your Unit Is Over 10 Years Old

If your water heater is more than 10 years old and you’re noticing issues, it may not be worth repairing.

📅 Older units are less efficient and more likely to fail—replacing it now can save money on energy and prevent a surprise breakdown.

6. Rising Utility Bills

A failing water heater can become inefficient, using more gas or electricity to heat the same amount of water.

📈 If your utility bills are creeping up without any other changes in usage, your water heater could be the cause.

7. Frequent Repairs

If you’ve had to repair your water heater multiple times in the past year, it’s a clear sign that replacement may be the better investment.

🔁 The cost of repeated service calls can add up quickly—a new unit may pay for itself in savings and peace of mind.

🆚 Should I Replace or Repair My Water Heater?

🛠️ What to Do Next: Call a Trusted Plumber

If you’ve noticed any of the signs above, it’s time to talk to a licensed professional.

At Local Rooter Corp. we offer:

• ✅ Free water heater evaluations

• ✅ Tank & tankless water heater installation

• ✅ Permit handling and code compliance

• ✅ Same-day emergency service

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📞 Need to Replace Your Water Heater in San Jose?

Don’t wait for a full breakdown. Contact Local Rooter Corp. for honest advice and professional service.

📱 Call or Text: (408) 868 8759

🌐 Visit: www.localrooter.net

📍 Serving: San Jose and surrounding areas

💬 Ask about energy-efficient rebates!

❓ Frequently Asked Questions (FAQs)

Q1: Should I repair or replace my water heater?👉 If your water heater is over 10 years old and showing issues (leaks, rust, no hot water), replacement is typically the smarter choice.

Q2: How much does it cost to replace a water heater?👉 On average:

• Tank unit: $1,200–$2,500 (including labor & permit)

• Tankless unit: $2,800–$4,500 depending on gas/electrical setup

Q3: Do I need a permit to replace my water heater in [City]?👉 Yes! Most cities, including San Jose, require a plumbing/mechanical permit for water heater replacements.

Q4: Can I install a water heater myself?👉 Homeowners can in some areas, but if it involves gas lines, venting, or code compliance, it's safest (and often required) to hire a licensed plumber.

Q5: What are signs of a dangerous water heater?👉 Smelling gas, water pooling around the base, or discolored water can indicate a potentially hazardous situation. Turn off the unit and call a professional immediately.