Tankless Water Heater Repair in Keller

- Expert Repairs on All Tankless Units
Continuous flow, on-demand and hybrid water heater service
- Lasting Restoration of Hot Water Delivery
Get back to clean, on-demand hot water ASAP
- Trusted Techs + a Workmanship Warranty
Certified work plus a warranty on parts and labor
- Get Same Day Service!
- Family Owned and Operated
- Fix Your Issue 100% Guaranteed

Tankless Water Heater Repair, On Your Terms
Keller deserves better Tankless Water Heater Repair solutions
If your tankless water heater in Keller is acting up, Mother Modern Plumbing can help, as we have deep plumbing expertise to solve your water heating issues.
Have you noticed inconsistent water temperatures, or perhaps a sudden lack of hot water? Are you experiencing error codes on your unit?
At Mother Modern Plumbing, we understand that a malfunctioning water heater can disrupt your daily life. With nearly a century of combined plumbing experience, our expert team is equipped to diagnose and fix any issue efficiently and effectively. We pride ourselves on transparent communication, ensuring you understand every step of the repair process without any hidden costs or confusing jargon.
We stand by our commitment to providing clear, reliable, and professional service. With Mother Modern Plumbing, you're choosing a company that values your peace of mind. We focus on clean, fast, and permanent repairs, guaranteeing satisfaction.
Here are some common signs that you may need a tankless water heater repair:
- Inconsistent water temperature
- Reduced hot water flow
- Error codes on the unit
- Unusual noises coming from the unit
- Water leaks around the heater
Don’t let a faulty water heater disrupt your comfort any longer; contact Mother Modern Plumbing today, and let our team of expert plumbers restore your home's hot water.

Fast Tankless Water Heater Repair: within 24 hours
If your tankless water heater in Keller isn’t keeping up, our plumbers are here to help. We specialize in Tankless Water Heater Repair to troubleshoot and resolve the issue efficiently. For homes with hard water, we recommend Tankless Descale to protect your system and extend its life.
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Proudly helping with Tankless Water Heater Repair in Keller
From Hidden Lakes to Marshall Ridge, we provide specialized tankless water heater repair throughout Keller's 60+ neighborhoods. Whether you're in Bourland Oaks, Forest Lakes, Cielo, or Tuscany, our local technicians deliver prompt tankless water heater services including replacement, maintenance, descaling, and installation of instant hot recirculation pumps. Residents of Highland Oaks, Twin Lakes, Mount Gilead Ranch, and Sanctuary trust our expertise for comprehensive water heater solutions, from routine flushes to Floodstop auto-shut off installations.
What are the most common tankless water heater repair types?
A majority of tankless water heater repairs (especially in DFW) involve one of these six key issues:
- Descaling due to mineral buildup
- Ignition system issues (blocked sensors)
- Blockages of vents
- Faulty flow sensors
- Leaks from a damaged heat exchanger or valves
- Damaged gas flexes and closed valves (gas units)
How often should I descale my tankless water heater?
Perform tankless water heater descaling once every 6-12 months in most areas to eliminate mineral buildup in the system.
If you live in areas with extremely hard water- such as Dallas-Fort Worth- consider decaling your on-demand hot water heater every 6-8 months (roughly twice a year). Limescale is particularly hard on tankless units in our area.
How often should I replace the inlet filter on a tankless water heater?
This depends on the water quality in your area and your personal water usage rate. Most homeowners should replace the inlet filter every 6 months.
If your home uses a lot of water, or if you live in regions with extremely hard water (like North Texas), check your inlet filter every 4 months. Increased use and excessive mineral scaling have significant impact on the filter's lifespan.
