Free Tankless Installation Estimates
High-Efficiency Navien Tankless Water Heater Installation & Repair in Metro Detroit
Endless Hot Water
& Massive Energy Savings
Say goodbye to cold showers. Upgrade to a premium Navien condensing tankless water heater installed by Metro Detroit's premier plumbing specialists.
Or call us now586-247-7300
- Save up to40%on water heating bills vs. traditional tanks
- Efficiency95%+AFUE ultra condensing · Energy Star certified
- Lifespan up to20 yrsvs. 8–12 years for standard tanks
- Repair24/7Emergency tankless repair, all major brands
The Industry Gold Standard
Why We Install the Navien NPE‑240A2
At 911 Mechanical, we install the highest-rated systems in the industry. The Navien NPE-240A2 High-Efficiency Condensing Tankless Water Heater completely redefines how your family accesses hot water.
Endless Hot Water on Demand
No more running out of hot water during back-to-back showers. Your water is heated instantly and continuously as it flows.
Ultra Condensing Efficiency (95%+ AFUE)
Energy Star certified. Save up to 40% on your water heating bills compared to standard, constantly heating traditional tanks.
Dual Stainless Steel Heat Exchangers
Highly resistant to rust, scale, and corrosion, giving your system up to double the lifespan of a traditional water tank.
Saves Premium Floor Space
Wall-mounted and incredibly compact, freeing up precious square footage in your basement, laundry, or utility room.
Advanced EZNav Digital Control Panel
A multi-line backlit digital interface that makes system monitoring, diagnostics, and customized configuration seamless.
No Costly Gas Line Upgrades
Designed with state-of-the-art tech capable of utilizing your existing 1/2" gas pipe (up to 24 feet), drastically reducing installation costs.
Tankless Services
Our Comprehensive Tankless Water Heater Services
Professional Tankless Installation & Conversions
We safely size, mount, and vent your new Navien system, seamlessly retrofitting it into your home's existing plumbing infrastructure.
- 1Size
- 2Mount
- 3Vent
- 4Retrofit
Annual Tankless Maintenance (Flushing & Descaling)
To protect your warranty and maintain peak efficiency, tankless units require an annual flush to clear mineral buildup. We provide thorough, quick descaling services.
- Annual flush & descale
- Clears mineral buildup
- Protects your warranty & peak efficiency
24/7 Emergency Tankless Repair
Is your system…
- displaying an error code
- or failing to deliver hot water?
We provide fast diagnostic and repair services for all major tankless water heater brands.
FAQ
Sizing & Sourcing FAQ
QCan a tankless system handle my entire family's hot water demand at once?
Yes! The Navien NPE-240A2 is engineered to handle multiple high-demand fixtures simultaneously. During our consultation, we calculate your home's peak flow rate to guarantee you always have endless, uninterrupted hot water.
- Consultation
- Peak flow rate calculated
- Endless, uninterrupted hot water
QIs a tankless water heater a good long-term investment?
Absolutely. Because they only heat water when you turn on a tap, they waste zero standby energy. Combined with a lifespan of up to 20 years (compared to 8-12 years for standard tanks), they deliver massive lifetime savings and value.
911 Mechanical
Endless Hot Water & Massive Energy Savings
Say goodbye to cold showers. Upgrade to a premium Navien condensing tankless water heater installed by Metro Detroit's premier plumbing specialists.
Or call us now586-247-7300