Tankless Water Heater Repair in Justin

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

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5.0

4.2

5.0

100% recommended

8350 Muirwood Trail, Ft. Worth, TX, 76137

Hours: 24 Hour Service

(817) 905-6513

Tankless Water Heater Repair, On Your Terms

Continuous Schedule Updates

Regain control of your day - you’ll know exactly when we’re coming.

Boot covers. Drop cloths. Cleanup.

We protect your home like it’s ours. Every time.

We explain. You decide.

We'll diagnose your problem, then let you pick what’s best for your home

Read three Tankless Water Heater Repair reviews!

Cristina Robinson

Josh from Mother was fantastic! He arrived on time, wore protective shoe covering, had a red carpet outside my front door, looked at the issue, explained what was wrong and what it would take to fix it, created a temporary fix that day, ordered the remaining needed parts, and set up the next appt. I paid for everything on the first visit so no money needed for the follow up of installation later. Today Josh reached out to let me know he was on the way annd arrived to install the ordered parts and checked and explained everything. I am beyond thrilled. I signed up for a year of membership so I can call them anytime and get help quickly. This is my go to plumbing company now! The folks on the phone were so kind and thorough and Josh is very personable, polite, neat and thorough. Thank you SND for giving me back hot showers!

Verified review

November 2024

Marjorie Tulana Keller

Josh was amazing! My husband and I really appreciated the time he took to explain everything regarding the tankless water heater, as well as other options! He was very professional and had such a knowledgeable expertise. He didn’t seem in a hurry. He did above what we expected.

Verified review

February 2025

Brian Policky

Dillon Ashton was exceptional in explaining the issues he found with our Rennai tankless HW heater and provided several options for rectifying our problem.

Verified review

July 2025

Justin deserves better Tankless Water Heater Repair solutions

If you're experiencing issues with your hot water, Mother Modern Plumbing's expert team can help get your tankless water heater back in top condition.

Are you noticing a lack of hot water, inconsistent water temperatures, or strange noises coming from your water heater? Have you experienced any error codes or warning lights?

With Mother Modern Plumbing, you're choosing a team with a combined 98 years of plumbing experience in the DFW area. We understand the nuances of tankless water heaters and are committed to providing you with clear, honest solutions, and lasting repairs. Our flat-rate pricing ensures transparency, so you can be confident in the quality and cost of our service.

Choose Mother Modern Plumbing, where we treat your home like our own, providing expert service with the care of a mother.

Here are some common signs that you may need a tankless water heater repair:

Lack of hot water or inconsistent temperatures
Error codes or warning lights on the unit
Strange noises coming from the water heater
Leaks around the unit
Increased energy bills without a change in usage

Don't wait until your hot water issues worsen; contact Mother Modern Plumbing today to experience the peace of mind that comes with professional, reliable service.

A smiling plumber in Justin, Texas, wearing a navy blue uniform with "Dillon" and "Journeyman" embroidered on it, stands at a street intersection with local businesses and a water tower labeled "Justin" in the background, representing a professional plumber in Justin.

Justin Neighborhoods We Proudly Serve With Expert Tankless Water Heater Repair

Common Q's about Tankless Water Heater Repair

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Our Services

Plumbing

Freeze Break Repair

Water Pressure Test

Smart Toilet Installation

Smart Water Shutoff Valve

Worried about major leak damage while you're away from home? Want the benefits of insurance discounts and rebates? Install an automatic smart water shutoff valve and monitor in your home and protect against leaks from anywhere in the world.

Emergency Shutoff Valves

Camera Inspection

See the cause of your soggy floorboards or high water bills in real time with a plumbing camera inspection. Reveal hidden leaks, root intrusions and damage- pinpoint the problem and understand how to fix it fast.

Plumbing Inspection

Need a quick analysis of your home's plumbing system? Before you buy or sell a home, schedule a plumbing inspection to eliminate any surprises (and avoid repairs before you need them!).

Water Leak Isolation Test

Water Heaters

Floodstop Auto-Shut Off

Instant Hot Recirculation Pump

Descale Tankless Water Heater

Tankless not delivering hot water, or won't ignite? It's time to descale your on-demand tankless water heater. Get rid of hard mineral scaling and get your hot water back.

Water Heater Maintenance

Strange noises from your tank or inconsistent water temperature? That usually means it's time to schedule water heater maintenance- ask for a water heater flush, plus inspection of your pilot light and T&P valve.

Water Heater Replacement

Frequent cold showers, visible tank corrosion and loud popping noises? These symptoms indicate your unit may be beyond repair, and water heater replacement is the solution.

Water Heater Repair

Notice leaks, popping noises or pooling water around your water heater tank? Schedule water heater repair to repair tank leaks and mitigate sediment and mineral buildup in your system.

Tankless Water Heater Replacement

Inconsistent water temperature and frequent error codes? It may be time for tankless water heater replacement for your aging unit. If your unit's over 12 years old, consider a new system.

Tankless Water Heater Repair

Sick of cold water sandwich issues, ignition problems, lukewarm water and persistent error codes? Tankless water heater repair offers direct diagnosis of codes and alarms and restores hot water fast.

Drain and Sewer Work

Sewer Cleaning

Grease clogs, sewage backups and root intrusions wrecking your sewer pipes? Schedule fast, effective sewer cleaning and get sewage where it belongs- far, far away from your house.

Sewer Line Rerouting

Dealing with a collapsed or bellied sewer line or old cast iron pipes? Lay a new path with sewer line rerouting- a smart approach to make future repairs simpler and cheaper.

Sewer Cleanout Installation

Need one single access point for all future sewer repairs? Install a sewer cleanout for proper drainage, easy access and simpler repairs and maintenance calls.

Drain Cleaning

Standing water in the sink, slow shower drain or gurgling tub drains? Schedule drain cleaning service with a focus on lasting solutions that include ongoing enzyme drain cleaner use.

Sewer Line Repair and Replacement

From pinhole leaks to root intrusions to sewer bellies and collapses, opt for sewer line repair and replacement with Schedule 40 PVC materials that reset your pipe's lifespan.

Hydro Jetting

Pesky drain blockages and deep, persistent sewer clogs need a stronger solution. Powerful hydro jetting service keeps your sinks clear, drains clean and sewer line pristine.

Gas Work

Gas Leak Detection

Feel dizzy, smell rotten eggs or sulfur, or see dead grass around your gas meter? Call your gas company to shut off the supply, then schedule prompt gas leak detection service to protect your family.

Propane Line Repair and Replacement

Fire Pits

Gas Line Repair

Sulfur smell near your appliances? Hissing from gas pipes? Ventilate your home, step outside, and call a licensed plumber for precise gas line repair to fix dangerous leaks for good.

Natural Gas Generator Hookup

Want reliable backup power during a storm? Tired of increasing blackouts and power outages? A new natural gas generator hookup to ensure an uninterrupted home power supply.

Water Quality

PFAS Filtration

Reverse Osmosis Filtration

Whole Home Water Filtration

Worried about PFAS (forever chemicals), bacteria or hard water? A whole home water filter delivers clean tap water, plus protects pipes from scaling and limits sediment buildup in appliances.

Water Softener Installation

Gunky white buildup on your faucets and mineral scaling issues in your water heater? Install a water softener for cleaner water pipes, cleaner dishes, brighter laundry and better hair after showers.

Water Quality Test

Protect your home from PFAS, bacteria and contaminants with a water quality test from Mother. Call us if you notice discolored, bad tasting or smelling tap water.

Tips for For Justin Homeowners

Diagnostics

Fast Plumbing Answers: What To Do If You Smell Gas

Smell gas in your home? Evacuate and don't DIY. You have a leak in your natural gas line. Call your fire department and plumber - then read this guide for help.

Diagnostics

Fast Plumbing Answers: Water Under Floorboards

Water under floorboards? Discover the top causes—like slab leaks—and learn how Mother Modern Plumbing’s non-invasive leak detection can save your home (and sanity)!

Water Quality

What is Galvanized Requiring Replacement - is it worse than lead?

Galvanized Requiring Replacement lines may pose lead risks in Dallas water. Discover how to protect your family with expert testing and filtration solutions.

Diagnostics

Fast Plumbing Answers: Is Your Toilet Always Clogging?

Toilet always clogging? There's likely a blockage in your toilet trap or sewer line. We're Mother — we'll help you diagnose your plumbing problem in 2 minutes.

Water Quality

The Truth About Richardson, TX Water Quality

Richardson, TX water quality excels with lower chloramine and PFAS levels than neighboring cities. Discover how Richardson water compares to Dallas-Fort Worth.

Guides

Repairs

Comparing Sewer Solutions: Spot Repair vs Partial Replacement

Spot repair vs partial sewer line replacement: Discover which fix is right for your Dallas home, with expert advice, honest comparisons, and a little plumbing humor!

Drain Cleaning