"My hot water heater stopped working. As it was 8 years old, I thought I would have to buy a new one. But when Guy from Anchorage Plumbing & Heating arrived, he said he could fix it, and he did. I have hot water again, and I didn't have to buy a new one. Saved me a lot of money. This is the company I will use from now on for plumbing and heating problems."
"Moore removed and replaced my water heater in mid November. First class work performed and no issues with it since. Had the duct work cleaned for the first time and while pricey worth knowing they’re clean of debris."
On average, a tankless water heater should last between 10 and 15 years. Its lifespan will be affected by how much it's used, the effect of weather where your home is on the unit—colder is harsher and will shorten lifespan—and if the heater is maintained appropriately and regularly. There are many signs your water heater needs to be replaced, so pay attention to anything that changes with your heater or hot water.
While a water heater explosion is rare, it is a serious danger. Be aware of these critical warning signs:
Sulfur or Rotten Egg Smell: This is a major red flag, especially for gas water heaters. It can indicate a gas leak, which could ignite and cause an explosion.
Leaking Pressure Valve: If the temperature and pressure (T&P) relief valve is leaking, it may not be able to properly regulate internal pressure, creating a risk of bursting.
Shaking or Rumbling: Loud rumbling or shaking from the tank can be a sign of extreme pressure buildup.
Excessive Heat: If the exterior of the water heater feels unusually hot to the touch, the unit may be overheating dangerously.
Rust-Colored Water: This can be a symptom of severe internal corrosion that compromises the tank's integrity.
If you notice any of these signs, especially a gas smell, you must act immediately. Shut off the gas supply to the water heater and call a professional plumber right away to prevent a potential disaster.
Often, the first issue you might encounter is a lack or loss of power—this could be caused by a tripped switch or a failed heating element. If your hot water is not producing enough power and its size is not the issue, you might need to replace one of its heating elements. A leaking water heater could be caused by tank erosion.
The amount of time it takes to replace an electric water heater will depend on the skill level of the individual who is replacing it. For example, if you replace it yourself–and you don’t have much experience–you can expect the project to take a full day.
However, if you have a certified plumber or water heater contractor install your new water heater, it can take as little as 2 to 3 hours.
Several signs indicate your water heater may be failing or in need of replacement. Key indicators include:
Age: A water heater older than ten years is approaching the end of its typical lifespan.
Water Quality: If you notice rusty or discolored water from your hot water faucets, or a foul odor similar to rotten eggs or sulfur, it can signal internal corrosion.
Unusual Noises: Banging, rumbling, or popping sounds from the tank often mean sediment has built up, causing the unit to overheat.
Leaks: Any water pooling around the base of the tank or visible leaks are clear signs of failure.
Performance Issues: A decline in performance, such as water not getting hot enough, taking longer to heat up, low water pressure, or decreased efficiency, suggests the unit is struggling.
Visible Damage: Obvious rust and corrosion on the exterior of the tank can indicate a more serious internal problem.
While these signs often point to replacement, some issues may be fixable. It's best to consult a professional plumber to diagnose the problem before investing in a new unit.
The Wrangell, AK homeowners’ guide to water heater services
From average costs to expert advice, get all the answers you need to get your job done.
Looking to replace or upgrade your water heater? Use this water heater replacement cost guide to see what the work will cost and what factors affect your total.
A water heater flush costs $160 on average but can vary based on the unit size, type, labor, location, and more. Keep reading to learn how much you could pay.
Wondering how much a water heater expansion tank costs? Use this cost guide to get an accurate estimate and learn how to choose the right one for your home.
Who can install a water heater for you? Look to hire a water heater installation pro or a licensed plumber for this job because of the challenges involved.
The average lifespan of water heaters is 6 to 15 years for conventional models and up to 20 for tankless ones, but it can be less if they are not properly maintained.
