Tankless Water Heaters

  24/7 – 60 Minute response for Tankless Water Heater Repair Services | For same day service Call One Call Houst

Natural Gas Leak & Testing Procedure


Tankless water heaters provide hot water based on your demands, not water heater capacity. The water is heated as it flows through the heater rather than a a limited sized tank of water being heated as traditional water heaters operate. No matter how large your home is or how many people need hot water, you’ll never run out!

One Call offers the following services for water heater issues:

  • Water Heater Installation
  • Water Heater Service
  • Tankless Water Heater Installation
  • Tankless Water Heater Service
  • Water Heater Repair Houston
  • Tankless Water Heater Repair
  • Water Heater Cleaning
  • Water Heater Inspection
  • Water Heater Leak Repair
  • Water Heater Leak Service
  • Tankless Water Heater Houston
  • 24/7 Emergency Repair

Why Choose A Tankless Hot Water Heater?

No Tank To Clean

Unlike traditional hot water heaters, a tankless water heater doesn’t use a reservoir, so there’s no tank to get dirty or become scaled with lime deposits. THis makes tankless hot water heaters are much easier to maintain!

Easy to Install

Because they’re much smaller and more compact than a standard water heater, tankless hot water heaters can be installed in many more places. You can mount your tankless water heaters to a wall, attic, or in a closet, and it can be installed on the interior or exterior of your home.

Uses Less Energy

Because a tankless design only heats water on demand, they are much more efficient. A standard water heater is ‘always on’, heating water in a tank. Our on-demand tankless systems don’t need to be always on (and are safer as they don’t require a pilot light!) and cost half of what a traditional water heater does to operate, saving you money!


Due to the lack of tank, less overall parts, and the simplicity in which they operate, a tankless water heater is very durable and rarely requires maintenance

We Are Ready


There may come a time when the cost of keeping your old system is actually higher than that of purchasing a new one. It may be that a heater repair or heater service will not be a satisfactory solution. Installing a brand new HVAC system can drastically reduce the amount of your energy bill. 

Call us for more information!


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One Call can fix your clogged drain or whatever plumbing issue you are having. All of our plumbers have extensive experience with drain and sewer lines. We’ll take care of your clogged drain issue today, often in one hour or less. We have been serving the Greater Houston area since 1990..


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One Call Houston sets the industry standard for customer service. We take great pride in the fact that our customers come back to us for all their plumbing and AC needs because they know we are fair, fast, reliable and professional



Plumbers License #: MPL41644 (Texas Department of Plumbing Examiners) | HVAC License #: TACL15971 (Texas Department of Licensing and Regulations)