Endless Hot Water Delivered

Radiant® Plumbing and Air Conditioning delivers unmatched service for Texas homes, offering expertise in electric and gas tankless water heater installations, tailored to Texas climates. Enjoy endless hot water, energy savings, and comfort.

Radiant Plumbing Tankless Water Heater Install


Our Tankless Water Heater Services

When you choose Radiant for your tankless water heater installation, you’re not just getting a service provider; you’re gaining a partner dedicated to elevating your home’s comfort and efficiency. Our seasoned plumbers, backed by years of experience, approach each installation, repair, and service call with a meticulous focus on ensuring a seamless transition to a tankless hot water system. We understand that Texas homeowners have diverse needs, and that’s why we offer expertise in both electric and gas tankless water heaters, tailoring our solutions to suit your home and lifestyle.

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Radiant Plumbing and Air Conditioning operates across Austin and San Antonio, keeping over 10,000 homeowners happy with home repairs, installations, and maintenance. 

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The Radiant Difference

Expertise and Integrity at Work: Home Repairs by Radiant

At Radiant, we set new benchmarks in home care excellence. From your first call to our final follow-up, our expert technicians are committed to ensuring your complete satisfaction and earning your trust with every step.

Decades of Excellent Service

Since 1999, homeowners in Central Texas have relied on Radiant for top-tier plumbing and HVAC solutions. Our longstanding presence in Austin and San Antonio underpins our deep commitment to quality and customer satisfaction.

Dependable, Flexible Scheduling

Your time is valuable. That's why we offer flexible scheduling options to fit your life, not the other way around. Whether it’s an emergency or routine maintenance, our 24/7 availability ensures that we are always there when you need us.

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At Radiant, we believe in solving your problems without pushing unnecessary services. Our transparent pricing and honest service approach are why thousands of customers have trusted us for over two decades, celebrating our integrity in countless reviews.

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Total Home Coverage

Our comprehensive plumbing services ensure your entire home plumbing system functions flawlessly. Explore how we can enhance your home’s plumbing infrastructure with a range of expert services designed for efficiency and reliability.

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Tankless water Heaters

Frequently Asked Questions

Can I install a tankless water heater myself?

While some homeowners with advanced plumbing skills may consider installing a tankless water heater themselves, it’s important to note that, in Texas, all water heaters must be installed by licensed professional plumbers. At Radiant Plumbing and Air, we have been expertly installing hot water heaters throughout central Texas since 1999. Our seasoned professionals are well-versed in the intricacies of tankless heaters, ensuring not only a smooth installation process but also guiding you to maximize available rebates for your home upgrade.

Handling the installation of a tankless unit involves intricate work with gas lines, electrical components, and complex plumbing connections. Even for those with advanced plumbing knowledge, the risks associated with mistakes during installation, such as safety hazards, inefficiencies, or potential damage to the unit, make professional installation the wisest choice.

Our licensed plumbers bring the expertise needed to ensure proper installation, compliance with local codes, and the safe functioning of the unit. When you choose Radiant Plumbing and Air, you not only secure the benefits of a top-notch tankless water heater but also the peace of mind that comes with professional installation. For a hassle-free and expertly executed installation, contact us today, and let’s make your journey to a more sustainable future a great success with a reliable tankless water heater. Learn more about our services here.

Choosing the right tankless water heater for your home involves a thoughtful consideration of various factors tailored to your specific needs. Tankless water heaters are rated based on the maximum temperature rise possible at a given flow rate. When sizing a demand water heater, it’s crucial to take into account factors such as flow rate and the temperature rise required for its intended application, whether it’s for the entire house or a remote location like a bathroom.

To pinpoint the ideal size, calculate the flow rate (in gallons per minute or GPM) needed for simultaneous hot water use in your household. This step is essential in selecting a tankless unit with an adequate GPM rating. Costs for tankless water heaters can vary based on size, features, and energy source, typically ranging from $500 to $2,500, excluding installation.

For a comprehensive understanding of your specific requirements, we encourage you to contact Radiant Plumbing and Air, your trusted experts in tankless water heater solutions. Our professional plumbers have the expertise to assess your needs, calculate the appropriate unit size, and provide accurate cost estimates for both the unit and installation. With Radiant Plumbing and Air, you can make an informed decision that aligns perfectly with your home’s unique hot water demands. Call us today to get started on upgrading your home’s water heating system.

Absolutely, tankless water heaters can lead to significant cost savings over time. As stated by Energy.gov, “For homes that use 41 gallons or less of hot water daily, demand (or tankless) water heaters can be 24% to 34% more energy efficient than conventional storage tank water heaters.” If gas-fired, tankless water heaters can save homeowners over $100 annually, and even electric tankless water heaters provide savings of around $44 per year, according to the US Department of Energy.

While the initial investment in tankless water heaters is typically higher compared to traditional tank-style heaters, the long-term energy efficiency and on-demand heating make them a cost-effective choice. Unlike traditional heaters, tankless units only operate when hot water is needed, eliminating standby heat loss. This on-demand heating not only reduces energy consumption but also translates to lower utility bills.

It’s important to note that the actual savings will depend on factors such as your specific hot water usage patterns, local energy costs, and the efficiency of the unit. At Radiant Plumbing, our expert team can guide you through the process, helping you make an informed decision that aligns with your budget and energy-saving goals. Learn more about the potential savings with our tankless water heaters and how they can contribute to a more efficient and cost-effective home.

Yes, tankless water heaters can use gas as a power source. Gas-powered tankless water heaters are commonly fueled by natural gas or propane. The gas burner heats the water as it flows through the unit’s heat exchanger, providing an on-demand and continuous supply of hot water. Gas tankless water heaters are known for their efficiency and ability to deliver high volumes of hot water, making them a popular choice for many households. However, it’s important to ensure that your home has the necessary gas infrastructure and that the installation is performed by a licensed professional to ensure safety and compliance with local codes.

A tankless hot water heater operates by heating water on demand as it flows through the unit, eliminating the need for a storage tank. When a hot water tap is opened, cold water passes through a heat exchanger powered by gas or electricity, providing an instantaneous and continuous supply of hot water. Unlike traditional water heaters, tankless units don’t store preheated water, minimizing energy waste. Temperature control features allow users to customize the hot water output, making tankless heaters energy-efficient and suitable for on-demand heating.

Tankless Water Heater Installation and Service

Central Texas' Trusted Source for Tankless Water Heaters

Radiant Plumbing and Air Conditioning can guide you through the entire tankless water heater process. We’ll assess your hot water needs, recommend the best tankless water heater for your home, and handle the installation efficiently and professionally. We specialize in tankless water heater installation, repair, and maintenance, ensuring a steady flow of hot water whenever you need it.

What are Tankless Water Heaters?

Unlike traditional tanked water heaters that store gallons of pre-heated water, tankless water heaters heat water on-demand. This means you get endless hot water, eliminating the frustration of running out mid-shower.

Benefits of Tankless Water Heaters for San Antonio and Austin Homes

Here’s why a tankless water heater might be the perfect fit for your San Antonio or Austin home:
  • Endless Hot Water: Never run out of hot water again, even with back-to-back showers or laundry loads.
  • Energy Efficiency: Tankless water heaters only heat water when needed, leading to significant energy savings on your utility bills.
  • Space Saving: Ditch the bulky tank! Tankless water heaters are compact and can be mounted on the wall, freeing up valuable floor space in your garage or utility closet.
  • Longer Lifespan: With proper maintenance, tankless water heaters can last for up to 20 years, compared to the typical 10-12 year lifespan of traditional models.
  • Environmentally Friendly: The on-demand nature of tankless water heaters reduces energy consumption and your carbon footprint.

Why Choose Radiant for Tankless Water Heater Installation?

Radiant Plumbing and Air Conditioning is your one-stop shop for all your tankless water heater needs. Here’s what sets us apart:
  • Expert Technicians: Our licensed and insured plumbers are highly trained in tankless water heater installation, repair, and maintenance.
  • Brand Expertise: We work with all major tankless water heater brands, ensuring we find the perfect fit for your home and budget.
  • Competitive Pricing: We offer upfront pricing and financing options to make your transition to a tankless water heater smooth and affordable.
  • Exceptional Customer Service: From initial consultation to installation and after-sales support, we prioritize your satisfaction.
Here’s what you can expect when you choose Radiant:
  • Detailed Quote: We’ll provide a transparent quote outlining the cost of the tankless water heater, installation, and any additional services.
  • Seamless Installation: Our experienced plumbers will install your tankless water heater quickly and according to local building codes.
  • Post-Installation Support: We’ll ensure you understand how to operate and maintain your new tankless water heater. We also offer ongoing maintenance plans for optimal performance.

Upgrade Your Home’s Hot Water System with Radiant

Don’t wait any longer to enjoy the endless hot water and energy savings of a tankless water heater. Contact Radiant Plumbing and Air Conditioning in San Antonio or Austin today. We’re here to answer your questions and guide you towards a comfortable and efficient hot water solution for your home.

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