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Tankless Water Heater Repair & Installation

Aubrey and Denton County, TX

  • 24/7 Emergency Plumbing Services
  • Same-to-Next-Day Service
  • Flat Rate Service Fees

Considering a tankless water heater in Aubrey or Denton County? Look at the house first

A tankless water heater heats water as you use it instead of keeping 40 or 50 gallons hot all day. That sounds simple, but the install is not a like-for-like swap. Vor-Tex Plumbing Co. repairs and installs tankless units, including Navien, for homes in Aubrey and Denton County. Call (469) 552-2881 and we will look at your space before we quote anything.

Signs it is time to look at tankless, or to service the one you have

  • Your tank is leaking, rusting, or at the end of its life, and you are choosing between like-for-like and something different.
  • You run out of hot water when two showers, the dishwasher, and a load of laundry overlap.
  • You need the closet or garage floor space the tank takes up.
  • An existing tankless unit shows an error code, goes cold partway through a shower, or surges between hot and cold.
  • An existing unit is making new noise, or the hot water flow has slowed down.

What makes a tankless install different

Four things change when you move from a tank to tankless, and each one affects the price.

  • Gas supply. A tankless unit burns a lot of gas in short bursts. The gas line to the old tank is often too small and may need to be upsized, and your meter has to be able to keep up. See gas line installation for how we size it.
  • Venting. Tankless units vent differently than a tank. The vent route, length, and material depend on the model and where it will be mounted.
  • Power and drain. The unit needs an electrical outlet nearby, and a condensing model needs a way to drain condensate.
  • Water flow. The unit is rated for how many gallons per minute it can heat to a given temperature rise. Winter incoming water is colder, so the unit works harder when you need it most.

Tankless is not right for every household

We would rather tell you than sell you. Tankless costs more up front, and the savings in gas use depend on how much hot water your household uses. A tank heater is simpler to service and less expensive to replace. Tankless tends to fit homes where space is tight, or where hot water use is steady and the gas line and venting can be done cleanly. We will say which side of that your house is on. The tankless water heater cost guide lays out typical ranges and the comparison with a tank.

Repairing a tankless unit

Common repair calls include error codes, ignition problems, flame or flow sensors that have failed, restricted vents, and scale buildup on the heat exchanger. We read the code, check gas, venting, water, and power, and tell you whether it is a repair or a replacement. Because tankless units depend on clean passages, an annual flush is part of ownership. See preventative water heater maintenance.

Call right away if

  • You smell gas near the unit. Leave the home, call your gas utility or 911 from outside, then call us.
  • You see soot or scorch marks, or smell exhaust fumes near the heater.
  • There is water leaking from the unit or its connections.

What a tankless visit looks like

  1. You call, and tell us what you have now and what you want.
  2. We measure and quote on site. The $79 dispatch fee covers the visit and is applied to the job when you approve it. The estimate lists the gas, venting, and electrical work, so nothing shows up later.
  3. We install or repair, and show you the result, including the settings and how to read the display.
  4. Warranty. We provide a 5-year warranty on parts and labor when we supply the parts.

Water type changes how much upkeep a tankless needs

Scale is the main enemy of a tankless heat exchanger. In Little Elm, the Town’s water quality report lists hardness of 96 to 200 ppm, which is enough to build scale inside a heat exchanger. Little Elm also has more than one water system, so the right flush schedule, and whether softening makes sense, depends on which water comes out of your tap. We will check before recommending either.

More on water heaters

If you want to compare with a tank, see water heater repair and installation. The full list is under water heater services, and if your water is hard, see water softener installation.

Frequently Asked Questions

Do you install Navien tankless water heaters?

Yes. We repair and install tankless water heaters, including Navien units. We look at your space, gas supply, and venting before quoting so the estimate reflects the whole job.

Will a tankless heater need a bigger gas line?

Often, yes. Tankless units draw a lot of gas at once, so the line that fed a tank heater may be too small. We check the line and your meter capacity and put any upsizing in the estimate.

Is a tankless water heater worth it?

It depends on your household. Tankless uses less space and heats on demand, but costs more up front, and savings depend on how much hot water you use. We will tell you honestly whether it fits. See our tankless cost guide for ranges.

Do tankless heaters need maintenance?

Yes. Scale and sediment collect inside the unit, so a periodic flush is recommended, and how often depends on your water. See preventative water heater maintenance.

Can you repair my tankless unit if it shows an error code?

In most cases we can diagnose it. We read the code and check gas, venting, water flow, and power. If it is a part failure we repair it, and if the unit is past repair we tell you before replacing anything.

What does the $79 dispatch fee cover?

It covers sending a licensed plumber to diagnose or measure your job and give you an estimate. When you approve the work, the $79 is applied toward the total.

We also serve nearby communities

Plumbing problem right now? Call us.

Open 24 hours. Same-day or next-day service. License M-46210.