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HVAC emergencies happen when you least expect them. Contact the professionals at A+ Derr to take care of your issue. We have the necessary skills and tools to fix your system so you can safely use it once again. Call our team at 833-232-4328 to get emergency HVAC services in Louisville, KY, Evansville, IN, or the surrounding areas.

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Tankless Water Heater Replacement in Indiana & Kentucky

If your hot water has been cutting out or your energy bills are creeping up for no good reason, it might be time to take a closer look at your home’s water heating system. At A+ Derr Heating, Cooling, Plumbing, & Electrical, we know how frustrating it can be to deal with inconsistent water temperature or rising costs. That’s why we’re here to help.

We’ve been serving families across Indiana and Kentucky for decades, offering honest advice and reliable service that keeps your home running smoothly. If it turns out your water heater is ready for retirement, we’ll walk you through the tankless water heater replacement process in a way that’s easy to understand, budget-friendly, and tailored to your home’s needs. For more information, or to schedule your service, call 833-232-4328 or contact us online today!

Why Choose a Tankless Water Heater?

Tankless water heaters are a modern solution for energy-conscious homeowners. Unlike traditional water heaters that store hot water in a tank, tankless units heat water on demand. That means no waiting, no wasted energy, and no running out of hot water in the middle of a shower. These systems are designed to support busy families, couples, and individuals who don’t want to compromise on comfort or efficiency.

Key Benefits:

  • Endless Hot Water: Never worry about being the last to shower again. Hot water is always available on demand.
  • Lower Energy Bills: Because they heat water only when needed, tankless models reduce standby energy loss and can save homeowners hundreds of dollars annually.
  • Space-Saving Design: Their compact, wall-mounted design frees up valuable space in your utility room, garage, or basement.
  • Longer Lifespan: With proper maintenance, tankless systems can last up to 20 years or more, significantly longer than traditional models.
  • Environmentally Friendly: Reduced energy consumption means a smaller carbon footprint, making them a smart choice for eco-conscious households.

If your current unit is aging, inefficient, or in constant need of repairs, upgrading to a high-efficiency tankless model could make your life easier and your energy bills lower.

Signs You May Need a Tankless Water Heater Replacement

Even the most durable systems wear down over time. If you’re noticing signs of trouble, a replacement may be the smarter investment over frequent repairs.

Here are some of the most common red flags:

  • Lukewarm or Inconsistent Water Temperature: A clear sign that your unit isn’t keeping up.
  • Low Water Pressure: Mineral buildup or internal issues may be limiting water flow.
  • Visible Leaks or Rust: Physical signs of damage usually indicate a failing system.
  • Strange Noises or Error Codes: Banging, clanking, or recurring fault codes should never be ignored.
  • Unexpected Spikes in Utility Bills: Older units lose efficiency, leading to higher operational costs.
  • Age of the Unit (15+ Years): Even if it’s working now, aging systems are at higher risk of failure and inefficiency.

Our licensed technicians can evaluate your current system and provide honest recommendations tailored to your home and budget.

Our Tankless Water Heater Replacement Process

At A+ Derr, we get it—replacing your water heater can feel like a big deal. That’s why we keep the process straightforward, low-pressure, and easy to follow. No confusion, no stress—just solid, honest service from a team that’s got your back.

  1. Personalized Home Evaluation
    We start with a visit to your home to examine your current setup and understand your household’s hot water usage. Whether you’re a family of five or a couple living in a small home, we recommend models suited to your specific needs.
  2. Transparent, No-Pressure Advice
    You’ll get clear, honest guidance about your options. We’ll walk you through the features, benefits, and warranties of each recommended model so you can choose with confidence.
  3. Seamless Installation
    Our trained and certified plumbers handle every aspect of the installation. We handle permits, remove the old unit, and ensure the new system meets all local plumbing codes and manufacturer standards.
  4. Post-Installation Walkthrough
    Before we leave, we’ll test the unit thoroughly, demonstrate how to operate and maintain it, and answer any questions you might have. We also clean up the worksite—leaving your home just as we found it.
  5. Long-Term Support
    From maintenance plans to emergency service, we’re available whenever you need us. A+ Derr customers can count on dependable service long after installation day.

Tankless Water Heater Maintenance

Keeping your tankless water heater in top condition is essential if you want it to last and perform as efficiently as possible. While these systems are known for their reliability and long lifespan, a little maintenance goes a long way in protecting your investment.

Here’s how you can stay on top of tankless water heater maintenance:

  • Flush the System Annually: Hard water can cause mineral buildup inside your unit. Flushing the system once a year helps prevent scaling and keeps it running smoothly.
  • Clean the Air Intake Filter: Just like an HVAC system, your tankless water heater has an air filter that needs occasional cleaning to ensure proper airflow.
  • Inspect the Venting System: Make sure the venting is clear of obstructions and properly sealed to avoid safety issues.
  • Check for Error Codes: Modern tankless units will often display error codes when something’s wrong. Don’t ignore these—call a pro to investigate if you see one.
  • Schedule a Professional Tune-Up: Even if everything seems fine, it’s smart to have a licensed technician inspect and service your system once a year.

At A+ Derr, we offer maintenance plans to take the guesswork out of caring for your unit. We’ll help extend its lifespan, keep your energy bills low, and ensure it continues delivering reliable hot water when you need it most.

Get Started with a Free Tankless Water Heater Replacement Consultation

If your tankless system isn’t meeting your needs—or if you’re ready to enjoy the advantages of switching from a traditional unit—A+ Derr Heating, Cooling, Plumbing, & Electrical is here to help.

We proudly serve homeowners throughout Indiana and Kentucky with prompt, courteous, and expert service. Our team is ready to walk you through the entire replacement process from start to finish. Let’s bring you the comfort, convenience, and cost savings you deserve.

Call us today at 833-232-4328 or schedule your free in-home consultation online.

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Discover The A+ Derr Difference

24/7 Heating & Cooling Repairs

Heating and cooling emergencies can happen on nights, weekends, and holidays, so you can trust us to be there no matter when you need us.

Licensed & Experienced Technicians

Our experts have the expertise and training to deliver the highest quality services every time.

100% Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every HVAC service we perform.

Servicing All Major Makes & Models Of Equipment

We are a Lennox Premier Dealer and also service on all makes and models of equipment, including Goodman, Amana, Carrier, Trane, Rheem & more!

Locally Owned & Operated

Since we’re based in Kentuckiana, we know the needs of Evansville, Louisville, and surrounding communities.

50+ Years in Business

For over 50 years, A+ Derr has provided high-quality service, products, and results for Kentuckiana's residents.

24/7 Heating & Cooling Repairs

Heating and cooling emergencies can happen on nights, weekends, and holidays, so you can trust us to be there no matter when you need us.

Licensed & Experienced Technicians

Our experts have the expertise and training to deliver the highest quality services every time.

100% Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every HVAC service we perform.

Servicing All Major Makes & Models Of Equipment

We are a Lennox Premier Dealer and also service on all makes and models of equipment, including Goodman, Amana, Carrier, Trane, Rheem & more!

Locally Owned & Operated

Since we’re based in Kentuckiana, we know the needs of Evansville, Louisville, and surrounding communities.

50+ Years in Business

For over 50 years, A+ Derr has provided high-quality service, products, and results for Kentuckiana's residents.

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Our Reviews

See What Your Neighbors Are Saying

Jake came and did my spring service yesterday. Their service is very professional, they are always out to get the best deals for anything I may need. I purchased new units from them a couple years ago, and the savings has been so noticeable.

Amanda A.

Amanda A.

Texal and his crew came out on time. Had 2 new systems put in. The service was great. Highly recommend.

Beverly G.

Beverly G.

Nicholas has always been so polite and professional. We feel very comfortable having him in our home and know that his inspections are thorough.

Vicki L.

Vicki L.

Awesome service. They make it easy and painless to keep our new HVAC up and running at top efficiency!

Hal B.

Hal B.

Dylan came today for our tune up and as usual, we are very pleased with our service.

Haley B.

Haley B.