Lukewarm Water That Runs Out Fast
On electric tanks, a burned out lower element or failed thermostat cuts capacity. On gas, a dirty burner or thick sediment bed does the same.
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OUR SERVICES
Tank and tankless water heater repair and replacement for Ankeny homes and businesses, from a pilot that will not stay lit to a tank weeping at the base. Open 24 hours a day.
OVERVIEW
Water heater repair and replacement in Ankeny means finding why a tank or tankless unit stopped making hot water, fixing the failed part when the heater is worth saving, and replacing it to current code when it is not. We at Clog Busters serve Ankeny from our Des Moines branch on Vandalia Road, open 24 hours a day, 7 days a week.
In Ankeny, a replacement can reach past the tank itself. Chapter 178 of the Ankeny Code, the city plumbing code, adds a local rule that existing CSST gas piping must be bonded whenever alterations or repairs requiring a permit take place, unless the code official finds it technically infeasible. CSST is flexible, jacketed stainless gas tubing, and bonding ties it to the electrical grounding system. On a gas heater, that rule can turn a simple swap into a bonding check too.
City residential guidelines add carbon monoxide alarms near every bedroom on permitted interior repairs in homes with fuel-fired appliances. Read about our water heater services at every branch, browse the Ankeny service area page, or see emergency plumbing in Ankeny if a tank is leaking right now.
Water heater work in Ankeny follows the 2024 Uniform Plumbing Code, in force statewide in Iowa since March 26, 2025, as clarified by the Ankeny Plumbing Code.

WARNING SIGNS
Most heaters warn you before the tank gives out.
On electric tanks, a burned out lower element or failed thermostat cuts capacity. On gas, a dirty burner or thick sediment bed does the same.
Hardness minerals settle on the tank bottom and trap water beneath them, which boils and pops each time the burner fires. Ankeny water builds that layer steadily.
A worn thermocouple or flame sensor, a sooted burner, or a failing gas valve. Each is a repair worth checking before anyone mentions a new heater.
A drip from the drain valve or a pipe fitting is fixable. Water seeping from the tank body or under the jacket means the inner tank has rusted through.
The T and P valve opens when temperature or pressure climbs too high. Repeated discharge often points to thermal expansion with no working expansion tank, not a bad valve.
Discolored hot water with clear cold water usually means a spent anode rod. A rod caught in time is an inexpensive fix. A tank already corroding is not.
WATER HEATER SERVICES
Gas and electric, tank and tankless, for houses, townhomes and commercial buildings.
Elements, thermostats, thermocouples, gas valves, burners, dip tubes, drain valves and T and P valves, replaced when the tank itself is still sound.
Heat exchanger descaling, inlet screen cleaning, and tracing ignition and flow error codes.
Old heater drained and removed, new one set with fresh water and gas connections, venting checked, and CSST bonding confirmed on gas homes.
A tankless burner draws much more gas while firing than a tank burner. We check gas line size, vent routing and combustion air before recommending one.
In a closed system, heated water has nowhere to expand. We gauge the static pressure, check the expansion tank charge, and add a pressure reducing valve when pressure runs high.
Draining sediment and pulling the anode rod for inspection, the two steps that matter most on hard water.
WHY CLOG BUSTERS
Find the failed part, decide repair or replace together, and test before we leave.
On a leaking tank we shut the cold inlet, turn off the gas control or the breaker, and confirm there is no gas odor before any work begins.
Elements and thermostats metered, burner and flame sensor inspected, anode and relief valve checked, and vent draft confirmed on gas units.
You get the cause, a repair option, a replacement option and our read on the tank's remaining life.
A new heater gets a full size relief discharge line, an expansion tank where the system is closed, a properly pitched vent on gas models, and a CSST bonding check.
We fill and purge the tank, leak check every joint, verify draft and water temperature, and show you the shutoffs.
FAQ
Still stuck? Call the Des Moines shop at (515) 259-1991.
Yes, plan on a permit and a city inspection. Swapping a heater replaces an appliance, its connections and its relief valve, which is installation work under the Uniform Plumbing Code rather than an exempt minor repair. Permitted work can also trigger the city's CSST bonding rule and its carbon monoxide alarm guideline, so ask about both before the job is scheduled.
CSST bonding is a clamp and wire that connects flexible corrugated stainless steel gas tubing to the home's electrical grounding system. The Ankeny Plumbing Code requires existing CSST to be bonded whenever alterations, repairs or additions requiring a permit occur, unless the code official rules it technically infeasible. A gas heater ties into that piping, so we look for the bond on every permitted gas replacement and tell you if it is missing.
It can. City of Ankeny residential guidelines say that when interior repairs or alterations requiring a permit occur in a home with fuel-fired appliances or an attached garage, carbon monoxide alarms go outside and within ten feet of each bedroom door. Combination smoke and carbon monoxide alarms are allowed. Alarms must be working before the final inspection, so confirm with the city whether your job triggers the rule.
Hard enough to shorten a heater's life without maintenance. Ankeny buys treated water from a regional system, and samples from its three treatment plants in October 2026 showed hardness between about 120 and 170 milligrams per liter, roughly 7 to 10 grains per gallon. The U.S. Geological Survey classes that range as moderately hard to hard, and those minerals settle as tank sediment and tankless scale.
No, never cap or plug a temperature and pressure relief valve. It is the heater's last protection against overheating or dangerous pressure, and its discharge pipe must stay open, full size and free of any valve. Dripping after the burner runs usually means heated water is expanding into a closed system with no working expansion tank, or house pressure is too high. We test both before replacing the valve.
Repair it when the tank is dry and sound and the failure is a single part, such as an element, thermostat, thermocouple, gas valve or anode rod. Replace it when the tank body leaks, the hot water runs rusty from tank corrosion, or one repair keeps following another. Condition decides it, not age, and we price both options so the decision stays yours.
Often, but not always. A tankless unit heats water as it flows, so it does not run out, but it needs a gas line sized for a much larger burner, a suitable vent route, and periodic descaling on hard water. We check gas capacity, venting and combustion air at your address first, and when those do not line up, a correctly sized tank is the better choice.
Close the cold water valve on the pipe feeding the top of the heater, then set the gas control to off or switch off the breaker for an electric unit. Open a nearby hot faucet to relieve tank pressure. If there is any smell of gas, leave the house before making a call. Our Des Moines branch takes Ankeny calls 24 hours a day.
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