A 3D rendering of an automatic water heater.

Larkin Plumbing is your trusted source for professional water heater repair and replacement services in Las Vegas. We understand the importance of a functioning water heater in providing comfort and convenience for your daily routine. 

Whether your water heater is experiencing minor issues requiring repairs or it’s time for a complete replacement, our team of skilled water heater plumbers is here to help. With over 80 years of experience, we are committed to providing prompt, reliable, and cost-effective solutions with exceptional service to ensure you have access to hot water whenever you need it. 

If you are having issues with your hot water heater, call the Las Vegas water heater experts at Larkin Plumbing for repairs or replacement.

Common water heater problems for traditional water heaters

Traditional water heaters are popular for many homes, providing hot water for daily needs. However, like any mechanical system, they can experience issues. Some of the most common water heater problems encountered are:

  • Lack of hot water: One frustrating problem is when your water heater fails to produce enough or any hot water at all. This could be due to a broken thermostat, sediment buildup in the tank, a faulty heating element, or other issues.
  • Strange noises: If you hear hissing sounds or loud banging noises when it starts or stops, there may be an issue with mineral deposits accumulating on the heating elements
  • Leaks and drips: A hot water heater leaking or dripping water is inconvenient and can cause water damage
  • Rusty water: If your hot water appears rusty or has a metallic taste or odor, it suggests corrosion inside the tank that needs attention before further damage occurs
  • Inconsistent water temperatures: Fluctuating temperatures during showers indicate an issue with the thermostat settings, malfunctioning heating elements, or other components
  • Pilot light problems: For gas-powered heaters, if you notice that the pilot light frequently goes out or won’t stay lit despite repeated attempts at relighting it, there is an underlying problem requiring professional inspection and repair

Common water heater problems for tankless water heaters

Tankless water heaters have gained popularity due to their space-saving design and energy efficiency. While they offer numerous benefits, like any system, they can encounter issues, such as:

  • Insufficient hot water: If your tankless water heater isn’t providing enough hot water or is struggling to keep up with demand, it could be due to an undersized unit for your household’s needs or a flow restriction caused by sediment buildup or a clogged filter
  • Ignition failure: Gas-powered tankless systems rely on ignition mechanisms to start heating the cold water promptly. Persistent issues with ignition may indicate problems with gas supply, improper venting, debris blocking combustion air pathways, or faulty sensors.
  • Scale accumulation: Hard water scale buildup within tankless units due to mineral deposits from calcium and magnesium can reduce efficiency and eventually lead to malfunctions
  • Fluctuating temperatures: Temperature inconsistencies during usage might stem from incorrect thermostat settings, inadequate gas pressure reaching the unit (for gas models), insufficient power supply (for electric models), or possible component malfunction
  • Error codes: Tankless systems come equipped with onboard diagnostic systems that display error codes when there is an issue
  • Mechanical failure: While tankless water heaters usually have a longer lifespan than traditional models, mechanical failures can still occur. These may include issues with the heat exchanger, valves, sensors, or other internal components that require replacement or repair.

Repair vs. replacement

When faced with water heater issues, you may wonder whether it’s more cost-effective to repair the existing unit or opt for a new water heater installation. Some factors to consider when deciding between repair and replacement include:

  • The water heater’s age: If your water heater is nearing or exceeding its average lifespan, usually around ten to fifteen years, frequent repairs could indicate it’s time for a replacement
  • Cost of repairs: Evaluate the cost of repairing the water heater compared to investing in a new unit. If the repair costs are significantly high and there is no guarantee that further issues won’t arise, replacing the system might make more financial sense.
  • Energy efficiency: Traditional water heaters tend to be less energy-efficient than newer tankless or hybrid models. If you’re looking to reduce energy consumption and lower utility bills, upgrading to a more efficient system would be recommended.
  • Frequency and severity of issues: Consider how often your water heater requires repairs and whether these issues have been recurring despite previous fixes. Multiple repeated problems can indicate underlying issues that could lead to component failure and may warrant replacement.
  • Warranty coverage: Check if your current water heater is still under warranty coverage, as this can affect your decision-making process by potentially reducing repair costs or offering partial reimbursement on a replacement unit
  • Current technology advancements: Look into technological advances since installing your existing water heater. Newer models provide enhanced features like better temperature control, smart home integration, or increased efficiency ratings that might influence opting for an upgrade over repairs.
  • Mechanical failure: In cases of significant mechanical failure where the cost to repair the water heater outweighs its value, replacement is likely the more practical choice
  • Tank compromised: If there is evidence of a compromised tank, such as leaks or corrosion, it is often better to replace the water heater

Schedule a water heater repair or replacement today

A Las Vegas plumber fixing a water heater with tools.

Don’t wait for your water heater troubles to worsen. Our experienced team is ready to diagnose any issues, provide cost-effective solutions, and ensure the optimal performance of your water heater. Our residential plumbers are available 24/7, with no extra charge for nights, weekends, or holidays, for water heater repair or replacement to restore hot water quickly. 

Schedule your water heater repair or replacement with Larkin Plumbing today 


Elliott, S. & Homer, T. (2022). How Water Heaters Work.

How Tankless Water Heaters Work.

Water Quality FAQs. (2023).