Tankless Water Heater Services

Is Your Tankless Water Heater Failing to Deliver?

Is your tankless water heater giving you blasts of cold water mid-shower, flashing an error code you don't recognize, or just failing to keep up when the dishwasher and washing machine are running? These are common signs that the complex components inside your on-demand system need professional diagnosis, not a DIY guess. Head's Plumbing Sales and Service, Inc. has technicians ready to solve these exact issues across Atlanta Metro.

Tankless Water Heater Repair & Service

When your on-demand hot water isn't on-demand anymore, we pinpoint the failure and fix it right. A tankless unit has a lot of moving parts that have to work in perfect sequence, and when one fails, the whole system can shut down. We see it all the time in homes across Atlanta—from simple ignition failures where the unit clicks but won't light, to flow sensors that don't register you've turned on a faucet.

The biggest issue, especially with our water in Georgia, is mineral buildup inside the heat exchanger. This scaling constricts water flow and forces the unit to work harder, leading to overheating and shutdowns. Our first step is always a thorough diagnostic to read any error codes and test the components, so we're fixing the actual cause, not just a symptom. A small repair now, like replacing a flame sensor, can prevent a complete failure of the heat exchanger later.

Common signs you need a repair: * No hot water at all * Water isn't getting hot enough * Temperature fluctuates wildly (the "cold water sandwich") * Strange noises like clicking, humming, or banging * Error codes flashing on the digital display * The unit shuts off unexpectedly in the middle of use

When a unit is too old or damaged for a cost-effective fix, we'll have an honest conversation about whether Tankless Water Heater Installation & Replacement makes more sense financially. We handle every aspect of diagnostics and repair, so check out our complete Tankless Water Heater Repair & Service options for homes throughout the Atlanta area.

Tankless Water Heater Installation & Replacement

Installing a tankless water heater is a lot more than just hooking up two pipes; getting it right from day one is critical for performance and safety. We often get calls to fix problems caused by an incorrect installation. The most common mistake we see is under-sizing the gas line. Tankless units need a much higher volume of gas than traditional tank heaters, and if the line is too small, the unit will starve for fuel and constantly shut down or fail to reach temperature.

Properly sizing the unit itself is just as important. We'll look at how many bathrooms you have, your family's hot water habits, and the flow rates of your fixtures to recommend a unit that can actually keep up. We handle everything: calculating the load, ensuring the gas and water lines are correct, and installing the venting system to meet all local codes and manufacturer specs. You'd be surprised how many companies can't get that right.

Why Professional Installation Matters

A proper installation is the foundation for a decade or more of reliable hot water. It ensures: * Safety: Correctly venting a gas unit is non-negotiable to prevent carbon monoxide buildup. * Performance: Proper gas and water connections mean the unit can deliver the temperature and flow it was designed for. * Longevity: A unit that isn't struggling due to a bad install will last longer and have fewer breakdowns. * Warranty Protection: Most manufacturers will void the warranty if the unit wasn't installed by a licensed professional according to their exact specifications.

A new installation is a major investment, which is why we always recommend protecting it with an annual service plan. Explore our complete Tankless Water Heater Installation & Replacement process to see how we approach new system upgrades.

Tankless Water Heater Maintenance & Tune-Up

The single most important thing you can do to protect your tankless system is an annual flush and tune-up. The water here in the Atlanta Metro area is hard on plumbing, and for a tankless heater, that means mineral scale. As water heats up inside the heat exchanger, it leaves behind calcium and magnesium deposits that coat the inside of the pipes, acting like insulation and restricting flow. This forces your unit to run longer and hotter to heat the water, wasting energy and putting extreme stress on the components.

An annual descaling service involves circulating a special solution through the unit to dissolve all that buildup and flush it out. This restores the unit's efficiency and prevents the heat exchanger—the most expensive part of the system—from failing prematurely. Think of it as an oil change for your water heater; it's preventative care that saves you from a massive repair bill down the road.

What a full tune-up includes: * System flush and descaling of the heat exchanger * Cleaning the in-line water filter screen * Inspecting and cleaning the igniter and flame rod * Checking the burner assembly for proper combustion * Verifying safe and clear venting * Testing all safety controls and sensors

During a tune-up, if we spot a worn-out part, it can often be addressed as a straightforward Tankless Water Heater Repair & Service call before it causes a complete breakdown. Protect your investment with our Tankless Water Heater Maintenance & Tune-Up program.

Tankless Water Heater Inspection & Testing

If you're buying a home or just inherited a tankless unit, an inspection tells you exactly what you're working with. A simple visual check isn't enough. We run a full diagnostic to understand the health of the system, testing its performance under a real-world load to see if it can actually deliver on its promises. This is crucial for pre-purchase peace of mind or for diagnosing those strange, intermittent issues that never seem to happen when you're looking at the unit.

We check for signs of a poor installation, hidden leaks, or internal corrosion that could signal future problems. We also measure the temperature rise the unit can achieve at different flow rates, which tells us if it's performing to manufacturer specs or if it's losing power due to age or internal scaling. This gives you a clear, honest assessment of the system’s condition and its likely remaining lifespan.

Key inspection points: * Correct unit sizing for the home's demand * Proper gas line size and pressure under load * Safe and code-compliant venting * Signs of water leaks or internal corrosion * Performance testing of temperature output and flow rate * An honest assessment of its remaining lifespan

Sometimes an inspection reveals the problem isn't the heater but a restriction in the plumbing, which might require a Water Line Repair & Service visit to resolve. Get a clear picture of your system's health with our Tankless Water Heater Inspection & Testing services.

Tankless Water Heater Emergency Repair

When your hot water suddenly vanishes or you suspect a leak, you can't wait until Monday morning. A total loss of hot water is a major disruption, but a water or gas leak from the unit is a genuine emergency that requires immediate attention. We prioritize these calls to ensure your home and family are safe.

Our emergency service focuses on rapid, accurate diagnosis. We arrive ready to handle the most common critical failures, from failed heating elements in electric models to gas valve or ignition control failures in gas units. Our goal is to stabilize the situation, stop any active leaks, and get your hot water restored as quickly and safely as possible. We'll explain the problem clearly and give you straightforward options for the fix, even in a stressful situation.

What to Do in an Emergency

Your safety is the top priority. 1. If you smell gas: Do not touch any lights or appliances. Evacuate your home immediately and call your gas utility's emergency line from a safe distance. 2. If you see a major water leak: Find the main water shut-off valve for your house (usually in the basement, garage, or a utility box outside) and turn it clockwise to stop the flow. 3. Then, contact us. Once the immediate danger is contained, we can come in to handle the repair.

An emergency call might reveal a critical failure where a repair isn't safe or possible, making Tankless Water Heater Installation & Replacement the only responsible path forward. When you can't wait, our team is ready to respond with Tankless Water Heater Emergency Repair across the Atlanta Metro area.

How We Work: Generations of Plumbing Expertise

When you call Head's Plumbing Sales and Service, Inc., you're getting more than a technician; you're getting a family's legacy of expertise. Founded by our parents and grandparents in 1981, our company was built on doing the job the right way, every time. That commitment to craftsmanship continues today with the third generation of our family leading the team.

Our process is built on clarity and respect for your home. We take the time to explain what's wrong with your tankless system in plain English, lay out your options for fixing it, and provide transparent pricing before any work begins. There are no surprises and no high-pressure sales tactics. As a Rheem Pro Partner and member of the PHCC, we hold ourselves to the highest industry standards, ensuring every repair and installation is done with meticulous care.

Related Plumbing Services for Your Home

Your home’s plumbing is an interconnected system, and a tankless water heater issue can sometimes be a symptom of a different problem. For gas units, an undersized or leaking line can starve the heater of fuel, requiring Gas Line Repair & Service in Atlanta. Low water pressure can also prevent a tankless unit from activating properly, pointing to a need for Water Line Repair & Service in Atlanta. And if you're weighing the pros and cons of different technologies, we provide expert Water Heater Repair & Service in Atlanta for traditional tank-style units as well.

Get Your Hot Water Back. Today.

Don't let a failing tankless system disrupt your home. Head's Plumbing Sales and Service, Inc. is here to provide the expert, reliable service your Atlanta Metro home deserves, backed by generations of experience. We'll diagnose the problem correctly and get your hot water flowing again.

For honest advice and expert service, reach out to our team to schedule your appointment.

Need This Service?

Contact us today to discuss your needs. Our team is ready to help.

Schedule Now(678) 203-8627

Our Services

• Tankless Water Heater Repair & Service
• Tankless Water Heater Installation & Replacement
• Tankless Water Heater Maintenance & Tune-Up
• Tankless Water Heater Inspection & Testing
• Tankless Water Heater Emergency Repair

Service Areas We Cover

• Atlanta
• Service Areas
• College Park
• Decatur
• East Point
• Fairburn
• Forest Park
• Hapeville
• Lithia Springs
• Marietta

View all service areas

Water heater check

Water heater acting up? Repair or replace?

Answer three quick questions for a ballpark recommendation. It's a guide, not a quote — your technician confirms the right call on site.

How old is the unit?10 yearsNew25+ yrsWhat type?What's the main symptom?Our recommendationLikely repairable

No hot water is most often a failed element or thermostat (electric), or a pilot/igniter issue (gas) — repairable parts on a unit this age. We'd confirm the exact failure and fix it.

Typical ballparkTank repair$150–$700

Ballpark only — actual cost varies by unit, fuel type, code upgrades, and site conditions. We give you an exact, up-front quote before any work.

Get an exact quote(678) 203-8627

Ready to Get Started?

Contact us today for a free estimate. Our certified professionals are ready to help.

(678) 203-8627Schedule Service