Professional Tankless Water Heater Repairs in Louisville, KY
Same-Day Repair for Gas & Electric Tankless Systems
Louisville’s water runs hard, generally between 7 and 8 grains per gallon, and that mineral load takes a direct toll on tankless water heaters. Calcium and magnesium accumulate on heat exchangers, trigger error codes, and choke water flow long before a unit reaches the end of its useful life. Our licensed plumbers diagnose the root cause first, then repair what’s actually failing, whether that’s a clogged line, a faulty heating component, or a sensor that’s gone offline.
We’re a locally owned plumbing company serving Louisville homeowners and nearby Southern Indiana communities. We handle tankless water heater repair for both gas and electric systems, and same-day service is available to keep your household running without an extended wait. If a unit turns out to be beyond repair, we also offer tankless water heater installation and replacement so you aren’t left without options. For homes where the issue traces back to the gas supply, our gas line plumbing service covers that work as well.
Same-day service is available for Louisville homeowners. Call (502) 726-0085 or reach out online to connect with a licensed plumber today.
5 Stars Can’t Lie!
Real Stories, Real Smiles, Real Plumbing Wins
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Great Service, Great Price and Really Knowledgeable!"Great service, great price, and really knowledgeable. They definitely put in effort towards helping you remedy whatever plumbing needs you may have."- Veasna E.
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Entire Experience Exceeded Expectations!"I recently hired SOS Plumbing to install a new sump pump for my client, and the entire experience exceeded expectations."- Ninoska F.
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Steve & His Team Are Very Helpful!"Steve and his team were very helpful in deciding which sump pump to use for our garage area. They arrived early and clearly explained everything beforehand."- Susan L.
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Highly Recommend SOS Plumbing!"SOS plumbing came to my aid when I was really in trouble. They sent Steve to help and, he did! He was so very nice and put me at ease. He worked really hard to solve my problem."- Linda B.
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SOS Plumbing Delivered Outstanding Experience!"Steve and his team showed up the same day, right on time, diagnosed the issue quickly, and had everything running smoothly in no time."- Casey J.
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Chad was Excellent!"Chad was excellent on his service call. He went above and beyond to be courteous and handle all of my issues."- Stephen S.
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They Did An Excellent Job!"The team arrived promptly, communicated clearly throughout the process, did an excellent job, and left the area clean and tidy."- Rhonda K.
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Awesome Job!"SOS Plumbing took the time to hunt down the real issue and found a problem with our toilet flange that could have caused some damage. Awesome job!"- Adam N.
What Our Tankless Water Heater Repair Service Covers
Louisville’s hard water means mineral buildup on heat exchangers is one of the most common reasons homeowners call for service. Left unaddressed, those deposits reduce heating efficiency, restrict water flow, and trigger error codes that can look like major failures but often aren’t. We use advanced diagnostic tools to identify the actual source of the problem before any repair work begins, so you know exactly what needs to be done and why before any cost is incurred.
Our repair services include:
- Diagnosis and Troubleshooting: Advanced tools to pinpoint the exact issue.
- Clog Removal: Clearing blockages that disrupt water flow.
- Heating Element Repair: Fixing or replacing faulty heating components.
- Error Code Resolution: Identifying and addressing system alerts or malfunctions.
- Water Pressure Adjustment: Supporting optimal water flow.
- Preventative Maintenance: Inspections to reduce future repair needs.
Complex repairs may also include heat exchanger service, water flow sensor correction, gas line connection inspection, or venting system evaluation. When it makes sense during a repair visit, we perform system flushing as a preventative step. Descaling and flushing mineral deposits in the same appointment can support a unit’s lifespan and reduce how often service is needed. Both gas and electric tankless water heaters are serviced.
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Navigating SolutionsWe chart the course to fix your plumbing fast and efficiently, keeping your home safe and sound.
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Smooth Sailing ServiceFrom leaky faucets to major clogs, we handle it all with ease and professionalism so you can relax on deck.
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Clear Signals, No SurprisesWe communicate every step of the way so you always know what is coming, just like a trusty compass.
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Anchored in TrustHonest, reliable service you can count on, SOS Plumbing keeps your pipes shipshape.
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Steady Hands, Calm WatersWe navigate any plumbing problem with precision, keeping your home flowing smoothly no matter the storm.
Your review helps us continue providing top-notch plumbing care across Louisville & Southern Indiana and keeps our crew navigating the waters with pride.
Why Louisville Homeowners Choose SOS Plumbing
We prioritize residential service, which means Louisville homeowners aren’t competing with large commercial accounts for scheduling. Our plumbers are licensed and insured, and every job comes with upfront pricing and no surprise charges. For homeowners who want more than a one-time repair, our Captain’s Membership program includes 10% off all labor and materials, priority scheduling, waived diagnostic fees, and annual plumbing inspections that let a licensed plumber monitor your system’s health before small issues become costly ones.
What you get with every job:
- Licensed Professionals: Fully licensed and insured for all plumbing repairs.
- Fast Response: Same-day and emergency service available.
- Upfront Pricing: Transparent quotes with no surprise charges.
- Advanced Diagnostics: Modern tools to identify problems accurately.
- Quality Workmanship: Repairs designed for long-term durability.
- Local Focus: Proudly serving Louisville, KY homeowners.
If your tankless water heater isn’t performing, don’t wait for the problem to worsen. Call us at (502) 726-0085 or send us a message online to request same-day service in Louisville.