24 Hour Emergency Service
License #43658 24 Hour Emergency Service Available (830) 331-2055
Tankless Water Heater Repair in Boerne, TX
- Available 24/7
- Repairs a wide range of tankless issues
- 100% satisfaction guarantee
24 Hour Tankless Water Heater Repairs
Gottfried Plumbing LLC is a family-owned company offering tankless water heater repairs to homeowners and businesses in Boerne, TX. When your unit throws an error code, stops producing hot water, or shuts off without warning, we are the ones to call.
Our team is available 24/7 to pick up your calls. We handle broken heat exchangers, failed ignitions, and sudden error codes. Our goal is to fix the root cause, not just the error code on the screen.
Upfront pricing. Voted best plumber by the Boerne Star. Rated 5.0 stars across Google, Yelp, and Facebook.
Call (830) 331-2055 for same-day repair.
What Tankless Water Heater Repairs Do You Offer?
Gottfried Plumbing LLC handles the full range of tankless water heater repairs, from ignition failures and sensor faults to heat exchanger work and filter cleaning.
Water Heater Ignition Repair
When your unit won’t fire, the fault is usually in the ignition system. This can be the igniter rod, the flame sensor, or a gas line issue. We run a full ignition diagnostic to find the specific fault and get your unit lighting reliably.
Clogged Filter Cleaning
Inlet filter screens block sediment and mineral debris from reaching your unit’s core. In hard water, these screens fill up fast. A blocked filter reduces water flow below the activation threshold, triggering a no-hot-water shutdown. We clean or replace the filters as needed.
Heat Exchanger Repair
The heat exchanger is the most expensive part of a tankless unit and the one most affected by hard water. Calcium deposits reduce its ability to transfer heat, causing overheating shutdowns. Repairing or restoring a heat exchanger involves a thorough descaling process to remove the mineral buildup that has accumulated inside.
Flow Sensor Repair and Replacement
The flow sensor signals the burner to fire when water starts moving through the unit. When mineral sediment coats the sensor, it misreads flow rates, and the unit won’t turn on or produce uneven heat. Cleaning or replacing the sensor restores endless hot water throughout your home.
Thermistor and PC Board Assessment
Thermistors measure water temperature at multiple points in the heating cycle. A broken thermistor causes error codes and inconsistent output. We run diagnostics to identify whether the thermistor, PC board, or another component is the source of the fault.
Call (830) 331-2055 to book a repair service.
What Issues Often Show Up on Local Tankless Units?
The most common damage on Boerne tankless units is scale buildup from hard water, which restricts flow and causes repeated safety shutdowns. However, it is not the only factor.
Hard Water Scale Buildup
At 358 mg/L, Boerne’s water deposits calcium carbonate inside tankless units faster than most Texas cities. Without regular descaling, that mineral layer reduces heating output and eventually triggers repeated overheating shutdowns. That is why local units without a water softener require routine maintenance.
Flame Sensor Oxidation
The flame sensor confirms combustion before the unit opens full gas flow. Over time, oxidation coats the sensor rod, preventing it from reading the flame correctly. The result is a unit that tries to fire, fails, and locks out with no hot water.
Venturi and Burner Clogs
Dust and insects can block the venturi tube and burner ports on outdoor-mounted units. This limits airflow, leads to incomplete combustion, and triggers ignition failure codes. It’s a common issue for outdoor units in Texas Hill Country homes.
Corroded or Fouled Heat Exchanger
Years of hard-water use without regular plumbing service can cause significant fouling or corrosion inside the heat exchanger. At that point, a simple flush is not enough. Often, you have to replace the exchanger to get it working again.
Call (830) 331-2055 for an assessment today.
What Common Error Codes Show Up on Tankless Units?
The most common error codes on Boerne tankless units indicate ignition failures, overheating due to mineral buildup, and flow or condensate issues. Exact code numbers vary by brand. However, the fault categories below repeat consistently across local units.
- Code 11 / E003 (Ignition Failure): The unit attempted to fire but couldn’t confirm a flame. Caused by dirty burners, fouled igniter rods, or low gas pressure.
- Code 16 (Overheating): Calcium on the exchanger creates hot spots that push temperatures past the safe limit. The unit shuts down to protect itself.
- Code 29 (Condensate Backup): The condensate trap is blocked, and acidic drainage has nowhere to go. Often requires clearing the trap and drain line.
- Code 10 / E010 (Venting Fault): The exhaust flue is blocked, or the unit isn’t getting enough combustion air.
- Code 18 / E011 (Flow Sensor Fault): The flow sensor is coated with sediment and can no longer detect water movement accurately.
Call (830) 331-2055 for same-day service.
Can You Repair Tankless Systems at Home?
Some basic tasks are safe to handle yourself. They include rinsing an inlet screen or resetting a tripped breaker. But most tankless repairs go much deeper.
Code 16 is a good example. Pressing reset clears the lockout but does nothing to address the calcium layer on your heat exchanger. The unit will overheat again, often within days.
If your unit is throwing codes or giving you inconsistent hot water, the right move is to call licensed plumbers.
Call (830) 331-2055 before a small fix turns into a much bigger bill.
Do You Need Emergency Repairs?
Some tankless problems can wait. Others need emergency repairs. If you notice any of the following, stop using the unit and call us immediately:
- Your unit shows an error code and won’t reset after two attempts.
- Hot water stops completely during normal household use.
- You smell gas near the unit.
- Water is leaking from the unit or its pipe connections.
- The unit makes loud banging, clicking, or grinding sounds.
- Your water swings from scalding hot to cold within a single shower.
- The circuit breaker trips often when the unit is running.
A gas leak, cracked heat exchanger, or electrical fault can become a safety issue fast. We offer 24/7 emergency plumbing service with a 30-minute callback guarantee.
Call (830) 331-2055 for same-day repair.
How Much Does It Cost to Repair a Broken Tankless Unit?
Tankless water heater repair in Boerne starts at $150 and goes up based on parts and labor. The ranges below reflect general costs for common repairs in the Boerne area.
Plumbing Repair Service | Cost |
Service Call / Assessment | $150 |
Professional Descaling / Flush | $175 to $350 |
Sensor or Thermistor Replacement | $150 to $400 |
Ignition System Repair | $200 to $800 |
Heat Exchanger Repair | $500 to $1,300 |
You get a written quote before we start.
The Local Plumber Who Responds Fast
We are based at 607 E Blanco Rd and cover every part of Boerne, from newer subdivisions to older neighborhoods near the historic downtown. Inside Boerne, we serve:
- Downtown Boerne and Olde Town
- Esperanza
- Balcones Creek
- Miralomas
- Fox Falls
- Corley Farms
- Canyon Ridge
- Blattman
We also dispatch technicians to:
- Fair Oaks Ranch
- Comfort
- Bulverde
- Spring Branch
- Waring
- Welfare
- Greater Kendall County and the surrounding Hill Country areas
Not sure if we cover your address? Just call, and we’ll tell you right away.
Call (830) 331-2055 to book a local plumber.
Why You Should Call Us
Gottfried Plumbing LLC gives you reliable tankless water heater repairs. Mark is a licensed master plumber who knows Boerne’s water, its homes, and what it takes to get the job done right.
- Texas Master Plumber License #43658: Every repair is overseen by a licensed master plumber.
- Voted Best Plumber by the Boerne Star: Our neighbors chose us.
- 5.0 Stars on Google, Yelp, and Facebook: Consistent top ratings across every major review platform.
- A+ BBB Rating: No unresolved complaints on record.
- 24/7 Emergency Dispatch with 30-Minute Callback: Real people answer any time you call.
- Written Upfront Quotes: You know the price before we start.
- Same-Day Scheduling Available: We can often get to you the same day you call.
- Family-Owned Since 2020: We’re your neighbors, and your satisfaction is what keeps us in business.
Fast, fair fixes from a team your neighbors trust. Call (830) 331-2055.
Local Licensed Plumber: Fix It Right the First Time
Gottfried Plumbing LLC is a family-owned, licensed plumbing company based right here in Boerne. We provide both homeowners and businesses with expert tankless water heater repairs for reliable hot water.
No job is too big or too small for us. We are the ones to call when your tankless unit goes down at any time. Reach out to us if it fails to start or if it spurts cold water in the middle of a hot shower.
Every job gets the same treatment: an honest assessment, a written price, and work done right. Our clients come back to us because we show up when we say we will, fix what we say we’ll fix, and leave your home clean.
Call (830) 331-2055 to get your hot water back today.
Gottfried Plumbing LLC
607 E Blanco Rd, Boerne, TX 78006
Operational Hours:
Mondays to Sundays: 24 hours
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We Are Proud to Serve Boerne
Boerne was founded in 1849 by German settlers along Cibolo Creek and renamed in 1852 after German author Ludwig Börne. That heritage runs deep here. The Boerne Village Band, established in 1860, is the oldest continuously organized German band in the world outside Germany.
The 1870 Kendall County Courthouse still stands downtown, and the Kuhlmann-King Historical Complex gives visitors a close look at early Texas Hill Country life. Cascade Caverns and the Cave Without a Name draw explorers from across Texas, while Cibolo Nature Center preserves 100 acres of Hill Country ecosystem right inside the city limits. Boerne is history you can walk through.
FAQs
Does Boerne have a downtown?
Yes. Boerne’s downtown centers on the Hill Country Mile, a stretch of Main Street with over 80 shops, restaurants, and galleries in historic stone buildings along Cibolo Creek.
Why is Boerne expensive?
Boerne may seem expensive due to high demand from relocators. Also, limited housing supply, top-rated schools, and desirable communities like Cordillera Ranch push Boerne’s median home price to around $550,000.
Why does my tankless water heater keep shutting off in Boerne?
The most common reason is mineral scale from Boerne’s hard water. The Trinity Aquifer delivers calcium carbonate at up to 358 mg/L. That mineral bakes onto the heat exchanger, triggering Code 16 overheating shutdowns. Professional descaling typically stops the repeated cycling.
Can I flush my own tankless water heater in Boerne?
You can try basic flushing with a pump kit and white vinegar. But Boerne’s hard water often leaves limestone deposits that require stronger commercial descaling agents to fully clear.
Does hard water damage void my tankless warranty?
It can. Many manufacturers require documented maintenance for units installed in areas with hard water. Without a plumbing service record, a heat exchanger failure may not be covered under warranty.
How do I know if I need a repair or a full replacement?
A repair is usually the right call if the unit is under 10 years old and the issue is limited to sensors, filters, or mineral buildup. Repeated failures over a short period or a cracked heat exchanger are signs that replacement may be the better long-term investment.
Scheduling regular water heater maintenance in Boerne, TX can help catch early warning signs before they escalate into costly repeated failures.