Tankless Water Heaters in League City, TX

Thinking about upgrading to a tankless water heater in League City? Red One Plumbing installs, repairs, and flushes tankless units for homes of all sizes.

Service Details

Upgrade to Tankless in League City — Here’s Why

Tired of running out of hot water? A tankless water heater gives you on-demand, endless hot water with better energy efficiency and space-saving design. We install and maintain high-efficiency tankless units throughout League City.

Call 832-281-4022 or schedule online to request a quote on tankless installation today.

Benefits of a Tankless Water Heater

  • ✅ Endless hot water — never run out again
  • ✅ Saves space compared to bulky tanks
  • ✅ Lasts up to 20 years with proper maintenance
  • ✅ More energy-efficient = lower utility bills
  • ✅ Ideal for large families or high-demand households

Whether it’s Navien, Rinnai, Rheem, or another brand, we’ve got you covered.

Our Tankless Services in League City

  • New Installations: We size and install tankless units to match your home and usage.
  • Tankless Replacements: Swap out your old water heater with a high-efficiency upgrade.
  • Flushing & Maintenance: We flush and descale systems to extend lifespan.
  • Troubleshooting & Repairs: Error codes? No hot water? We’ll fix it fast.

We also provide code-compliant installation with proper venting and gas line sizing.

How to Maintain a Tankless Water Heater

Protect your investment with these maintenance tips:

  • Flush the system once per year (we do this for you!)
  • Install a water softener if you have hard water
  • Clean filters and check for scale buildup
  • Schedule annual inspections

Ask us about our maintenance plans for League City homeowners.

Why Choose Red One Plumbing for Tankless?

  • Local pros with tankless-specific training
  • 5-star rated across League City & Houston
  • Honest pricing and clean installations
  • Fast response when repairs are needed

We’ll help you pick the right unit, size it correctly, and install it safely — no guesswork.

Book Your Tankless Water Heater Service Today

Ready for endless hot water in League City? We’re ready to help.

Call 832-281-4022 or schedule your estimate to upgrade to a tankless water heater.

Need other services too? Visit our League City Plumbers page to explore drains, leaks, sewer lines, and more.

Red One Plumbing — Tankless water heater experts trusted across League City, TX.

Testimonials

Hear From Our Pearland Customers

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“Tankless Water Heater Install”

Roberto is a true professional. He always explains things carefully and takes detailed photos of whatever plumbing situation we have. He is meticulous with our home and always provides updates on his anticipated arrival time!

Kelly Nelson
West University
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“Drain Cleaning Service”

Roberto is the best and most honest plumber I have ever had in my house. He gave us is honest opinion on what needed to be done. No pressure on trying to up sell us on any other products. I truly respect the work he did and Red One Plumbing for preaching honesty over the bottom dollar.

Mike M.
Pearland, TX
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“Tankless Installation”

I had a tankless hot water heater installed by red one plumbing. A picture of the unit is attached.I found red one to be very professional and fair in their pricing. The tech, Roberto is a great guy and took extra time explaining everything to me and demonstrating how everything worked. He went above and beyond and I highly recommend him and red one.

Albert Lohse
Memorial
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“Clogged Shower”

Roberto came out to assess a drain clog we had on our <2 year old home. He was super kind, prompt, friendly and knowledgeable. If you want to work with someone who is genuine and honest, asked for Roberto from Red One Plumbing.

Rashida Ilegbodu
Pearland, TX
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“Faucet Replacement”

Roberto is so fantastic to work with. Super knowledgeable and friendly. Very professional and courteous. He moved my towels back under the sink neatly stacked after he was done working. It’s little things like that that motivate me to write the 5 star review. I’d recommend him for any plumbing job and I would call on him again in the future if we needed his services again.

Sofia Balat
West University Place
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“Water Heater Replace”

I had Red One Plumbing out for a separate issue (hot water heater replacement this time) and it just confirmed all of the positive aspects I experienced in the past. Roberto showed up on time, was transparent and informative through the entire process, and was able to complete the job the same day. Expectations met and exceeded once again!

Jerad Heintschel
Pearland, TX
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Areas We Serve

Serving Pearland, TX, Friendswood  and The Surrounding Areas

Red One Plumbing provides top-rated Plumbing repair and installations to homeowners across the Brazoria County.
📍Some of the  ZIP Codes we serve: 77581, 77584, 77578, 77511, 77546

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Need a Plumber in League City Today?

Red One Plumbing is ready to respond with fast, professional plumbing service in Pearland. No gimmicks, just honest work and real results.

contact@redoneplumbing.com
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