When it comes to comfort at home, few appliances are as essential as your water heater. Whether it’s a hot shower on a cold morning or sanitizing dishes in the kitchen, a working water heater is something most homeowners can’t live without. While tankless water heaters are growing in popularity, traditional tanked water heaters are still the most common option—and for good reason. They’re affordable, reliable, and easier to repair.
In this blog, we’ll dive deep into everything you need to know about tanked water heater repair and installation—from how they work and when to repair vs. replace, to choosing the right size and professional installation tips.
�� How Tanked Water Heaters Work
Tanked water heaters store and heat a large volume of water—typically 30 to 80 gallons—using either gas or electricity. The water is heated to a set temperature and held in the tank until it’s needed.
Main Components:
- Tank: The insulated storage unit that holds hot water.
- Heating Element or Burner: Heats the water using gas or electricity.
- Thermostat: Controls water temperature.
- Dip Tube: Brings in cold water from the top.
- Anode Rod: Helps prevent corrosion in the tank.
- Pressure Relief Valve: Prevents excess pressure build-up.
��️ Signs You Need Water Heater Repair
Before your water heater completely breaks down, it often gives off signs that something’s wrong. Here are the most common red flags:
- Inconsistent or no hot water
- Strange noises like banging or rumbling
- Rusty or discolored water
- Water leaks around the base of the heater
- Foul-smelling hot water
- Higher-than-usual energy bills
If you’re noticing any of these symptoms, it’s time to call a licensed plumber for inspection and repair.
�� Common Water Heater Repairs
- Heating Element Replacement
In electric models, a burnt-out heating element is a common issue. - Thermocouple or Pilot Light Repairs
In gas models, these components can fail, preventing the burner from igniting. - Anode Rod Replacement
Anode rods corrode over time. Replacing them can extend the life of your tank. - Flushing the Tank
Sediment buildup at the bottom of the tank can reduce efficiency and cause noise. Annual flushing helps. - Replacing a Faulty Thermostat
If the water is too hot or not hot enough, the thermostat may be to blame. - Leak Repair
Small leaks might be fixable, but leaks from the tank itself usually mean replacement is necessary.
�� When to Repair vs. Replace
Sometimes, repairs just aren’t enough. Here’s when it’s better to replace your water heater:
| Situation | Recommended Action |
| Unit is over 10–12 years old | Replace |
| Tank is leaking | Replace |
| Frequent or costly repairs | Replace |
| Upgrading to energy-efficient options | Replace |
| Minor part failure (element, thermostat) | Repair |
�� Choosing the Right Tanked Water Heater
If replacement is the right call, here’s what you need to consider when choosing a new tanked unit:
1. Tank Size
- 1–2 people: 30–40 gallons
- 3–4 people: 40–50 gallons
- 5+ people: 50–80 gallons
2. Fuel Type
- Electric: Easier to install, lower upfront cost, but typically higher operating costs
- Gas: Higher upfront cost, but lower long-term energy bills
3. Energy Efficiency
- Look for the Energy Factor (EF) rating—the higher, the better.
4. Warranty
- Most models come with a 6, 9, or 12-year warranty. A longer warranty can mean better quality.
��️ Professional Installation: Why It Matters
Even if you’re handy, installing a water heater is not a DIY job. Improper installation can lead to:
- Gas leaks or carbon monoxide exposure
- Water damage
- Code violations
- Voided warranties
A professional plumber ensures that:
- The unit is properly sized and vented
- All local codes and permit requirements are met
- Connections (gas, water, electrical) are safely installed
- The old unit is properly removed and disposed of
�� Maintenance Tips to Extend Lifespan
You can extend the life of your tanked water heater and boost efficiency by:
- Flushing the tank annually
- Checking the anode rod every 2–3 years
- Setting the thermostat to 120°F
- Insulating exposed hot water pipes
- Installing a thermal expansion tank (if needed)
�� Emergency? We’ve Got You Covered
Hot water emergencies can happen at the worst times. If your water heater is leaking, has stopped heating, or has flooded the space—don’t wait. Call a professional right away.
�� Final Thoughts
Tanked water heaters are still one of the most reliable, cost-effective solutions for home water heating. With proper maintenance, they can last over a decade. Knowing when to repair and when to replace—and hiring the right professionals—will ensure your home stays safe and comfortable year-round.
Need help with your water heater? Whether it’s a quick fix or a full replacement, trust your local plumbing experts to get the job done right.
