Tankless Water Heater Repair in Lewisville

- 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
Lewisville deserves better Tankless Water Heater Repair solutions
Is it time to address your tankless water heater repair needs in Lewisville? Mother Modern Plumbing, with our deep plumbing expertise, understands the urgency when your hot water supply is compromised.
Have you noticed inconsistent water temperatures, a lack of hot water, or unusual noises coming from your water heater? Is your water heater more than 10-15 years old? Have you noticed any leaks around the unit?
At Mother Modern Plumbing, we know that a malfunctioning tankless water heater can disrupt your daily life. Our expert, licensed plumbers provide clean, fast, and permanent repairs, ensuring you get back to enjoying the comfort of your home. With our flat-rate pricing and commitment to transparency, you can trust us to deliver reliable solutions without any hidden costs or upsells. We have a combined 98 years of plumbing experience on our team.
Mother Modern Plumbing is the trusted choice for tankless water heater repair in Lewisville, offering homeowners clarity, reliability, and professionalism, just like a mother would provide.
Here are some common signs that you may need tankless water heater repair:
- Inconsistent water temperature
- Lack of hot water
- Unusual noises from the unit
- Leaks around the unit
- Age of the unit is more than 10-15 years
Don't let a malfunctioning water heater disrupt your comfort any longer; contact Mother Modern Plumbing today and experience the peace of mind that comes with expert service.

Fast Tankless Water Heater Repair: within 24 hours
In Lewisville, tankless water heater issues can disrupt your entire routine. Our team provides reliable Tankless Water Heater Repair and recommends Tankless Descale to protect your system from mineral buildup and ensure long-term performance.
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Proudly helping with Tankless Water Heater Repair in Lewisville
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.
