Tankless Water Heater Repair in Chesterfield, MO | Call today

Tankless Water Heater Repair

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What Causes Tankless Water Heaters to Break?

Tankless water heaters are efficient, providing you and your family with nearly endless hot water, but they aren’t immune to breakdowns.

Common tankless water heater issues include:

  • Mineral buildup from hard water can reduce efficiency and water flow.
  • Demand for hot water exceeds heater capacity.
  • Problems with gas supply or ventilation can hinder combustion.
  • Faulty wiring, tripped circuit breakers, or other electrical problems can disrupt your system’s operation.
  • Issues with the ignition system can prevent the heater from starting.
  • Blockages in the venting system can lead to improper gas exhaustion.
  • Improper installation can lead to numerous problems.
  • Wear and tear can degrade components.
  • Components can malfunction.
  • Neglect can lead to reduced efficiency and premature breakdowns.

Do you notice any issues with your tankless water heater? Call (636) 532-5841 to request a quick diagnosis and repair.

Signs Your Tankless Water Heater Needs Repairs

While it’s usually so dependable you don’t even have to think about hot water, sometimes minor problems arise. Here are some signs that your tankless water heater needs repair:

  • Inconsistent water temperature
  • Reduced water flow
  • System shut-downs
  • Strange noises
  • Error messages on the display
  • Water leaking around the unit


When it comes to fixing your tankless water heater, you can’t beat the expertise of a professional like the team at Chesterfield Service. We’ll get the job done right, safely, and efficiently, and we’ll adhere to all industry standards.

Plus, we have the knowledge to diagnose and fix complex issues quickly, saving you time and money in the long run. When you hire a professional, you’ll enjoy these advantages:

  • Expertise in various models
  • Quick and accurate diagnosis
  • Guaranteed work
  • Safety assurance
  • Long-term solutions

Save on costs and avoid disruptions. Call Chesterfield Service at (636) 532-5841 to schedule tankless water heater repair in Chesterfield or nearby.

Tankless Water Heater Repair vs. Replacement

If your tankless water heater is breaking down frequently, consider replacing it rather than repairing it again. Sometimes, repairs are more cost-effective at the time, but it’s good to be ready for when you have to replace your tankless water heater.

It’s better to repair your tankless water heater if your unit is newer and has a specific issue. However, if your unit is getting old and needs many complex repairs, replacing it might be more cost-effective than repairing it over and over.


Chesterfield Service, a family-owned business since 1976, is your trusted partner for tankless water heater repairs in Chesterfield, MO.

We’re proud to offer:

  • Licensed and certified technicians
  • Same-day service
  • Free estimates on replacements
  • Upfront pricing
  • Financing options
  • Discounts for military, veterans, and seniors
  • And more