The Rescue Plumber • Long Island, NY
Navien Boiler Service & Installation — Long Island, NY
Looking for a trusted Navien specialist? We’re an Authorized Navien Boiler Service Provider & Installer, offering annual cleanings, emergency repairs, replacements, and system upgrades. Factory-trained technicians. Stocked service trucks. Upfront pricing.
- Authorized Navien Service Provider & Installer
- Factory-Trained Technicians
- Stocked Service Trucks
- Service & Repair All Brands
Why Homeowners Choose Us for Navien Service
Real Diagnostics (Not Guesswork)
Factory-trained technicians who troubleshoot correctly, explain options clearly, and fix what’s needed.
Prepared Trucks = Faster Repairs
Stocked service trucks help us handle common Navien and tankless boiler issues without multiple trips.
Upgrades Done Right
From a basic swap to a full system upgrade — proper sizing, venting, condensate, and controls matter. We handle it correctly.
Need help now? Call 631-860-1954 for Navien boiler service.
Navien Boiler & Tankless Services
- Annual Cleaning & Maintenance: combustion safety checks, flushing (as needed), inspection, and performance tuning
- Emergency Repairs: no heat, no hot water, lockouts, ignition issues, error codes, leaks
- Installation & Replacement: Navien wall-hung boilers, combi systems, and tankless water heaters
- Upgrades & Efficiency Improvements: control upgrades, zoning, circulator/valve issues, system balancing
- Combi Boiler Support: space heating + domestic hot water troubleshooting and optimization
Navien Models We Commonly Service
- Navien NPE-2 Series (NPE-A2 / NPE-S2): high-efficiency tankless water heaters
- Navien NCB-H Series: combi-boilers providing heating + domestic hot water
Not sure what you have? Call 631-860-1954 and tell us the model number — we’ll guide you fast.
📞 Schedule service: 631-860-1954
Common Navien & Tankless Boiler Problems We Fix
- No heat / no hot water
- Error codes, lockouts, ignition or flame-sensing issues
- Fluctuating hot water temperature (“cold sandwich” complaints)
- Low flow, scale buildup, or performance drop
- Condensate drain issues or venting-related faults
- Circulator, zone valve, or control problems
- Leaks, relief valve discharge, or pressure issues
Emergency? Call 631-860-1954 — we’ll get you running again.
We Service & Repair All Brands (Not Just Navien)
While we’re authorized for Navien, our technicians service and repair most major tankless water heater and wall-hung boiler brands, including:
Rinnai, Navien, Rheem, Stiebel Eltron, Noritz, A.O. Smith, Bosch, EcoSmart, Takagi, Bradford White, Lochinvar, NTI Boilers, Viessmann, Weil-Mclain, Eemax, Eccotemp, Marey, Atwood, EZ Tankless, Chofu, Keltech, Paloma
Popular Models You May Have
- Rinnai Sensei Super High Efficiency Plus: condensing tankless, high efficiency, Wi-Fi options
- Rinnai I-Series Plus: combi boilers for heat + hot water
- Rheem Performance Platinum: high-efficiency tankless models
- Stiebel Eltron Tempra Plus: compact electric tankless systems
- Noritz NRCB199-DV: condensing combi boiler
- Viessmann Vitodens 100-W: efficient combi boiler
If you have a different unit, no problem — call 631-860-1954 and we’ll help you identify it.
Annual Navien Cleaning & Maintenance
Regular maintenance helps prevent breakdowns, protects efficiency, and extends the life of your boiler or tankless water heater. Ask about annual cleanings and seasonal checkups.
- Safety checks, combustion inspection, and performance tuning
- Identify small issues before they become emergency calls
- Improve reliability during peak heating season
Service Area
We provide Navien boiler service across Long Island, including: Babylon, West Babylon, North Babylon, West Islip, Lindenhurst, Deer Park and surrounding Suffolk County communities.
Schedule Navien Boiler Service
Whether you need an annual cleaning, an emergency repair, or a new Navien installation, we’ll give you clear options and get it done right.
📞 Call 631-860-1954The Rescue Plumber — Authorized Navien Boiler Service Provider & Installer • Long Island, NY