Tankless Water Heater Repair in Richland Hills

What's included:
- Certified Repairs on Rinnai, Navien, A.O. Smith + More
- 12-Year Bumper-to-Bumper Warranty
- Fully Stocked Trucks for Same Day Repairs
- Get Same Day Service!
- Family Owned and Operated
- Fix Your Issue 100% Guaranteed

If your tankless water heater in Richland Hills is acting up, Mother Modern Plumbing's expert team can diagnose and resolve the issue with precision.
Have you noticed a sudden decrease in hot water, unusual noises, or error codes on your unit? Are you experiencing inconsistent water temperatures or complete loss of hot water?
At Mother Modern Plumbing, we understand that a malfunctioning tankless water heater can disrupt your daily routine. With our deep expertise and commitment to transparency, we'll quickly identify the problem and offer a clear, reliable solution. Our licensed plumbers, with their combined 98 years of experience, ensure every repair is done right the first time.
We are dedicated to providing lasting solutions and are committed to your satisfaction. Our flat-rate pricing means no hidden fees, just honest, expert service.
Homeowners in DFW trust Mother Modern Plumbing because we provide expert repairs, clear estimates, and a dedication to solving your plumbing problems efficiently.
Here are some common signs that you may need a tankless water heater repair:
- Inconsistent water temperature
- Reduced hot water supply
- Unusual noises from the unit
- Error codes on the display
- Complete loss of hot water
Don’t let a faulty tankless water heater disrupt your comfort; contact Mother Modern Plumbing today, and let our seasoned professionals restore your hot water with confidence.
Richland Hills Neighborhoods We Proudly Serve for Expert Tankless Water Heater Repair
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.
What types of water heaters do you install and repair?
We are trained and certified to install and repair all major brands of conventional water heaters and tankless water heaters. We regularly work work products from Rinnai, Navien, A.O. Smith (State Water Heaters), Rheem, Bradford-White and Ruud.








-(27).webp)
-(22).webp)
-(16).webp)
-(8).webp)









