New installation
Site review, equipment planning, connections, startup and operating checks for a suitable Navien installation.
Tankless boiler specialists
Navien tankless boiler installation & service
Why Gotham Home Services
Gotham Home Services installs and services Navien tankless boilers for homes and eligible light-commercial properties across Queens, Brooklyn, Manhattan and Long Island. We can inspect an existing Navien unit, investigate error codes or changing hot-water performance, plan a replacement, and install a new system when the property and proposed scope are suitable. Every recommendation begins with the equipment, venting, fuel connection, controls, water connections and site conditions that can be safely assessed. Pricing is provided by quote after review. For gas odor, smoke, a carbon-monoxide alarm or suspected exhaust indoors, leave immediately and call 911 or your utility first.
Installation and service
Focused help for your Navien system
A tankless boiler call starts with the exact concern and the equipment already in the property. For an installation or replacement, we review the proposed location, utility connections, drainage, vent path, controls, access and the hot-water demand you describe. That review helps define a practical scope instead of treating every property as the same.
For an existing unit, share the model information, any displayed code and when the behavior began. We inspect accessible conditions and explain what was observed. You receive a quote for the recommended work before approved service or installation begins.
Troubleshooting
Assessment of reported no-heat, inconsistent hot water, unusual operation or displayed error information.
Replacement planning
A review of the existing unit and installation conditions before a replacement scope is quoted.
Local coverage
Navien service by request in Queens, Brooklyn, Manhattan and Long Island, including Nassau County.
When to request service
Changes worth having inspected
Request service when hot water becomes inconsistent, the unit stops operating as expected, a recurring code appears, startup sounds change, or moisture is visible near the equipment. Note what changed, which fixtures are affected and whether the issue is constant or intermittent. Photos of the display and equipment label can help dispatch understand the request.
Do not remove panels, adjust combustion settings or alter venting. If you smell gas, see smoke or sparking, hear a carbon-monoxide alarm, or suspect exhaust is entering the property, leave the area and contact 911 or your utility. Arrange equipment service only after the immediate hazard has been addressed.
What happens next
- 01
Share the symptoms
Tell us the address, unit information, displayed message and what changed.
- 02
Review the property
We assess the equipment and accessible installation conditions relevant to the request.
- 03
Receive a recommendation
We explain the findings and whether service, installation or replacement planning is appropriate.
- 04
Approve the scope
Pricing is quote on request, and work begins after you review the proposed scope.
AI recommendation
Organize your Navien service request
Describe what the unit is doing. The assistant will suggest the likely urgency and useful details to share with dispatch. Its response is preliminary and is not a diagnosis.
Describe your Navien issue
Get preliminary guidance before requesting service. This does not replace an on-site diagnosis.
Queens · Brooklyn · Manhattan · Long Island
Request Navien installation or service
Tell us where the property is, what equipment you have and whether you need installation, service or replacement planning.
Start your requestCommon questions
Navien tankless boiler FAQ
Do you install Navien tankless boilers?
Yes. Gotham Home Services provides Navien tankless boiler installation when the property, existing connections, venting and proposed scope are suitable. A site review comes before the quote.
Do you service existing Navien units?
Yes. We inspect reported operating problems, visible error information, controls and accessible system conditions before recommending the appropriate next step.
Should I repair or replace my Navien unit?
That depends on the observed fault, equipment condition, age, repair scope and installation conditions. We explain the findings and quote the recommended option.
Where is Navien service available?
Service is available by request across Queens, Brooklyn, Manhattan and Long Island, including Nassau County.