
Tankless Water Heater Diagnostics and Repair
We read the error codes, test the flame sensor and flow sensor, and check for scale before recommending any part. You get a clear repair price before work starts.

Texas Born Plumbing handles tankless water heater repair, drain service, and leak fixes for Denton homeowners, from the historic streets near the Square out to Robson Ranch.
Denton has its own character, and so does its plumbing. Many homes in the Oak-Hickory historic district near the Courthouse-on-the-Square still run on galvanized supply lines and cast iron drains, while newer houses in Rayzor Ranch and Robson Ranch tend to have PEX piping and a tankless unit on the garage wall. From the bungalows near Quakertown Park to the neighborhoods along Loop 288, shifting soil and seasonal temperature swings put real strain on pipes and fittings.
Tankless heaters are a big part of what we fix here. Denton's city water carries enough minerals to coat a heat exchanger over time, which leads to error codes, lukewarm showers, and units that shut off mid-use. Regular tankless water heater descaling prevents most of that, and when a unit is too far gone, we walk you through tankless water heater replacement, including whether your gas line can feed the new model.
If you own a rental near the University of North Texas or Texas Woman's University, the weeks between leases are a smart time for a plumbing check before new tenants arrive. Our licensed team (Texas license M45910) works Monday through Friday, 8:00am to 5:00pm, with Saturday and Sunday visits by appointment.


We read the error codes, test the flame sensor and flow sensor, and check for scale before recommending any part. You get a clear repair price before work starts.

Tank heaters in older Denton homes last longer with routine water heater flushing to clear sediment. When it's time for new equipment, we handle the full water heater installation, code updates included.

Grease in kitchen lines, hair in tub drains, and roots creeping into old clay pipes all slow things down. We clear the clog and show you what caused it.

Cast iron and clay sewer lines under historic homes crack and sag with age and shifting soil. A camera inspection shows exactly where the trouble is before anyone digs.

A running meter, a warm spot on the floor, or a stain on the drywall usually points to a leak you can't see. We track it down with minimal damage to your home.

Most tankless units need more gas than an old tank did. We inspect, resize, and pressure test lines so your new heater runs safely at full output.
For most Denton homes, once a year is a good rule. Larger households or homes with heavy hot water use may need it more often, and we can check scale buildup during any visit to give you a better schedule.
It depends on the age of the unit, the part that failed, and the condition of the heat exchanger. If a repair makes sense, we fix it. If you'd be pouring money into a unit near the end of its life, we'll show you why and price out a tankless water heater installation side by side.
Yes. We serve homeowners across Denton and the surrounding parts of Denton County, including the newer communities off I-35W and FM 2449. Weekday appointments are easiest to schedule, and weekend visits are available by appointment.


Cold showers and error codes don't have to drag on. Tell us what your heater is doing, and we'll give you an honest diagnosis and an upfront price before any work begins. Call (817) 542-7599 or send a request, and a Texas Born Plumbing tech will set a time that fits your week.