Heat service · Staten Island
Tankless water heater installation in Staten Island
Endless hot water from a wall-hung unit the size of a carry-on bag. We size, install and service gas tankless water heaters in Staten Island, checking the gas line and venting before we quote so there are no surprises.
GW Mechanical Corp installs and services tankless water heaters in Staten Island. Call 646-980-2411 for a site check and written quote.
Tankless water heater installation across Staten Island
Staten Island houses, with exterior walls on all sides and usually a basement or utility room near the gas meter, are the easiest tankless installations we do, and the demand is high in Great Kills, Eltingville, Annadale and Tottenville where families run out of hot water with a 40 gallon tank. Houses converting from oil to gas often add a tankless or combi unit at the same time, since the gas line is being run anyway. Raised homes on the East Shore get the unit mounted in the elevated utility room with venting designed for it.
We dispatch to Staten Island daily; the Verrazzano puts the North Shore 35 to 45 minutes from the shop, and we stage parts for South Shore calls so one trip finishes the job.
What we handle
Sizing to winter inlet temperature and the fixtures that run together
Gas line sizing and upgrades, filed with DOB
Condensing and non-condensing units, side-wall or roof venting
Isolation valves and condensate neutralizer on every install
Annual descaling flush and filter cleaning
Repair of Navien, Rinnai and Noritz units with common parts on the truck
Staten Island neighborhoods we serve
Every neighborhood in Staten Island, ZIP codes 10301–10314, 24 hours a day.
- St. George
- Tompkinsville
- Stapleton
- New Brighton
- West Brighton
- Port Richmond
- Westerleigh
- Clifton
- Rosebank
- Grasmere
- Todt Hill
- Dongan Hills
- Midland Beach
- New Dorp
- Oakwood
- Great Kills
- Eltingville
- Annadale
- Huguenot
- Prince's Bay
- Charleston
- Tottenville
- Travis
- Bulls Head
See the full Staten Island service page for every service we offer in the borough, or the tankless water heater installation service page for details that apply citywide.
Questions from Staten Island
Who installs tankless water heaters in Staten Island?
GW Mechanical Corp installs and services Navien, Rinnai and Noritz tankless water heaters across Staten Island. We check the gas line and venting before quoting.
Is a tankless water heater worth it in Staten Island?
Yes if you run out of hot water or need the space, and the gas line can support it. We tell you honestly if a tank is the better choice.
Can a tankless water heater be installed in a Staten Island house or apartment?
Often yes. It needs a gas line that can carry 150,000 to 199,000 BTU and a vent route to an exterior wall or roof within the manufacturer's distance. We check both before quoting.
Does a tankless unit need maintenance in Staten Island?
A yearly descaling flush through the isolation valves and a clean inlet filter. NYC water is relatively soft, so scale builds slowly, but the annual flush is what gets 20 years out of the unit.
Do you repair tankless water heaters in Staten Island?
Yes. Error codes, scaled heat exchangers, blocked condensate lines, flow sensors and igniters on Navien, Rinnai and Noritz units, with common parts on the truck.
Tankless water heater installation in other boroughs: Brooklyn · Queens · Manhattan
Need tankless water heater installation in Staten Island?
A dispatcher answers 24/7. Tell us where you are and what is wrong.
646-980-2411