Tankless Water Heater Installation and Repair
Energy-Efficient Hot Water Solutions for Your Home
Tankless Water Heater Installation & Repair in San Antonio, TX
Hot water is one of those modern luxuries you don’t really think about—until it’s gone. If you’re tired of running out of hot water halfway through a shower, dealing with bulky storage tanks, or paying high energy bills for heating water you’re not using, a tankless water heater could be the solution you’ve been looking for.
At My Throne Plumbing, we specialize in professional tankless water heater installation and repair services throughout San Antonio, TX. Tankless systems, also called on-demand water heaters, provide hot water instantly whenever you need it — without the need for a storage tank. This not only saves space in your home or business but can also lower your energy costs significantly.
Whether you’re switching from a traditional tank model, replacing an old tankless unit, or repairing an existing system, our licensed plumbers ensure the job is done correctly, efficiently, and in compliance with local plumbing codes. With us, you get reliable hot water, expert installation, and peace of mind.
Our Tankless Water Heater Installation Process
Installing a tankless water heater is more complex than swapping out an old tank. These advanced systems require precise sizing, gas or electrical upgrades, proper venting, and expert calibration to function at peak performance. At My Throne Plumbing, we follow a proven installation process to ensure your new system works flawlessly.
Benefits of a Tankless Water Heater
Switching to a tankless water heater offers numerous advantages for homeowners and businesses in San Antonio:
Endless Hot Water
On-demand systems heat water instantly, so you’ll never run out — even if multiple taps are running at once.
Energy Efficiency
No need to keep 40–50 gallons of water hot all day; tankless models only heat water when it’s needed.
Longer Lifespan
With proper maintenance, tankless water heaters can last up to 20 years, compared to the 8–12 years of traditional tanks.
Posted on Cristal Longley2025-08-06Trustindex verifies that the original source of the review is Google. John came to our house promptly to do some major repairs and installations. He fixed some poor, faulty water pipes, installed a new manifold system and plumbed in a water heater and a washer. In addition to this, he helped install a new dryer vent. We went from no hot water, no washer, no dryer and multiple leaks to the point the house was flooding to a brand new water heater and place for our laundry station. He then also detected another leak under our bath and repaired that too! Not only was he prompt and very polite, he's also clean, cleaning up any debree and mess from his work. I cannot recommend My Throne Plumbing enough This is not the first time we have used him and if we ever need a plumber again, it won't be the last. If you need polite, honest, clean, prompt, licensed and insured. This is the plumber you need to hire!Posted on Ralph Mendez2025-07-29Trustindex verifies that the original source of the review is Google. Great job, great customer service.Posted on Faithoverfear2025-07-21Trustindex verifies that the original source of the review is Google. Jonathan and his team member did a wonderful job repairing my detached pipe! They provided explanation, overall great service and professionalism!Posted on Troy Mclaughlin2025-07-20Trustindex verifies that the original source of the review is Google. I like the fact that they were always on time. Communication from Jonathan was detailed, and they did everything they said they would. They did a great job, and I would highly recommend them to anyone who wants outstanding services. I also like the fact that he takes care of his military veteran customers. The price was surprisingly affordable. Thanks, Johnathan and crew, for a great experience.Posted on Eli Kony Lugasi2025-07-12Trustindex verifies that the original source of the review is Google. I needed a plumber for the second time in a matter of two weeks, there has been a serious issue with my main line, so i called this guys, Jonathan came and was super professional, he was able to explain everything that was wrong with my pipes and why the toilet was clogged, and what we should do to prevent it from happening again, and made sure everything is running smooth before he left. Most definitely 5 stars for Jonathan and his team!Posted on Lamar Rawles2025-07-11Trustindex verifies that the original source of the review is Google. Mr. Garza is an excellent plumber. He installed several toilets as well as capped our gas line so we could install an electric stove. He is our go to plumber and will always use him.Posted on Gail Jennings2025-07-04Trustindex verifies that the original source of the review is Google. The name of this plumbing business caught my attention immediately. A plumber with a sense of humor has got to be good. Turns out he helps young people/plumbers get knowledge and experience to get certified. Cool! Being a retired teacher myself I was impressed with just that. He went on to be a very creative problem solver when rerouting the main water line from the meter to the house. Quality of work ?... Excellent. Creativity? Also excellent. The one thing he did I was most appreciative of was keeping me in the loop whenever he was faced with a decision. Let's see...yup! That's worth 5 stars.Posted on Ben Costello2025-06-16Trustindex verifies that the original source of the review is Google. Very professional work 👍Posted on Ryan Rodriguez2025-06-13Trustindex verifies that the original source of the review is Google. Arrived right on time, and got straight to work. Honest dude—there was no attempt to upsell or push unnecessary work. Completed the job efficiently, and charged a very reasonable price. Even threw in a couple free estimates while he was at the residence.