Tankless Water Heater Services

Servicing All Makes & Models • Preferred Brand: Navien

At Flat‑Out Plumbing, HVAC & Restoration, we expertly service, maintain, and repair tankless water heaters from ALL brands. But when it’s time for a replacement, we stand firmly behind Navien—because our professional experience confirms it outperforms the rest.

🔥 Why We Trust Navien Over Any Other Brand

1. Endless Hot Water & Superior Efficiency
   Navien’s condensing tankless units deliver continuous hot water on demand, eliminating cold‑water “sandwiches.” Their ultra‑efficient systems reach up to 0.96 UEF, significantly reducing energy use—and water waste—by heating only what you need.
2. Durable Dual Stainless Heat Exchangers
   Navien pioneered dual stainless steel heat exchangers—combining longevity (20+ years) with industry‑leading warranties of up to 15 years on key components.
3. ComfortFlow® Recirculation System
   Navien’s patented ComfortFlow system includes built‑in recirculation and buffer tank technology to reduce wait times for hot water—meaning less water waste and faster service at every faucet.
4. Smart, Compact, & Environmentally Friendly
   Navien units are sleek, wall‑mounted, and ENERGY STAR certified. Their condensing design allows PVC venting, reducing installation costs and carbon emissions.
5. Outstanding Factory Warranty
   Navien backs its tankless heaters with strong warranties—covering labor, parts, and the heat exchanger for 5 to 15 years, depending on model and use—provided they’re installed by licensed pros.

✅ Flat‑Out’s Warranty Matches Navien’s

We believe in Navien so much that we match their manufacturer warranty with our labor warranty for all replacement units. That way, your water heater—and our work—is covered from day one, fully and confidently.

🛠️ Our Complete Tankless Water Heater Services

✅ Full‑Service Maintenance & Repairs – For Navien and all other brands

✅ Professional Sizing & Consultation – Ensuring your system fits your home or business needs

✅ Expert Installation & Replacement – We exclusively install Navien for new units

✅ Warranty Management – Partnering with you from paperwork to repair

📞 Schedule a Consultation Today!

Experience reliable hot water, unmatched efficiency, and superior service with Navien — backed by Flat‑Out’s professional installation and industry‑leading warranty.

📞 Call Flat‑Out Now: 832‑904‑9001

📍 Serving Houston and Surrounding Areas — Residential & Commercial