TANKLESS WATER HEATER INSTALLATION
Endless hot water. Lower energy bills. Expert installation.
How much does tankless water heater installation cost on Oahu?
Tankless water heater installation on Oahu costs $2,500-$5,000 including the unit and all necessary modifications. Hawaii Plumbing & Drain Cleaning Squad installs Rinnai, Navien, and Noritz. Call (808) 353-8445 for a free estimate.
Thinking about a tankless water heater? Smart move. Tankless water heater installation is one of our specialties on Oahu. These units heat water on demand — no tank, no running out of hot water, and up to 30% lower energy bills. I'm Jack Perry, and we've installed hundreds of tankless systems across the island. We work with Rinnai, Navien, and Noritz. Call (808) 353-8445.
Benefits of Going Tankless
Endless hot water — never run out during back-to-back showers. Up to 30% energy savings compared to tank heaters. 20+ year lifespan (vs. 8-12 for tanks). Compact size saves space. No risk of tank flooding. Lower long-term cost of ownership.
Tankless Installation Requirements
Tankless installation may require gas line upgrades (for gas units), electrical upgrades (for electric units), proper venting, and condensate drainage. We assess all requirements during our free estimate and include everything in our quoted price — no surprises.
Best Tankless Brands for Hawaii
We recommend and install Rinnai (most popular, excellent reliability), Navien (best efficiency, built-in recirculation), and Noritz (great value, proven performance). All are well-suited to Hawaii's warm incoming water temperature, which actually makes tankless units even more efficient here.
Hawaii's ONLY On-Time Arrival Guarantee
We're so confident in our punctuality that we'll discount your bill if we're late.
Frequently Asked Questions
Ready to Get Started?
Call us now for fast, reliable service with upfront pricing and our On-Time Guarantee.