Commercial Water Heater Installation, Repair & Replacement
in NYC
Hot water is not optional for your business. We install, repair, and replace commercial water heaters for restaurants, hotels, salons, laundromats, and multi-family buildings — tankless, tank-type, and high-efficiency systems.
Same-Day Emergency Service
High-Efficiency Options
4.9 on Google & Yelp
Up to 12-Year Warranty
No hot water means no business
A restaurant cannot wash dishes, a hotel cannot serve guests, a salon cannot operate, and a laundromat is literally useless — all without reliable hot water. When your water heater fails, everything stops.
No hot water right now
Your heater died with a full restaurant tonight — dishes pile up, you can't sanitize, and the health code demands hot water.
Lukewarm at best
Your heater can't keep up at peak hours, leaving tepid dishwasher cycles and complaints from every floor.
Gas bills absurdly high
Your 15-year-old tank runs at 60% efficiency; tankless and high-efficiency units hit 95-98% and cut gas 30-40%.
Tank leaking or corroded
Puddles, rusty hot water, or a slow drip mean failure is near — a planned swap beats a flooded basement.
WHAT WE DO
The Right Hot Water Solution for Every Business
From a same-day emergency replacement to a planned upgrade to tankless — we match the right water heater technology to your hot water demand, space constraints, and energy goals.
Water Heater Installation
Tank, Tankless & High-Efficiency
We size your system based on peak hot water demand, select the right equipment, handle gas and water connections, venting, and permits. Tank, tankless, condensing, and heat pump water heaters — we install them all.
Water Heater Repair
All Brands & Types
No hot water, leaking tank, pilot light out, error codes, strange noises — we diagnose and repair every water heater issue. Same-day service available for emergencies across all five boroughs.
Tankless Conversion
Endless Hot Water, Smaller Footprint
Replace your bulky tank unit with a wall-mounted tankless system that delivers unlimited hot water on demand. Save floor space, cut gas bills 30-40%, and never run out of hot water during peak hours again.
ALL MAJOR BRANDS
We Install and Repair the Industry's Best
We install and service every major commercial water heater brand — giving you access to full manufacturer warranties and genuine parts.
#1 selling tankless in North America
Reliability proven worldwide
Americas water heating leader
Built in America since 1881
Invented tankless water heating
Full range water heating
CLIENT TESTIMONIALS
Why NYC Businesses Trust ART HVAC
Real water heater emergencies and upgrades. Real results.
HOW IT WORKS
From Cold Water to Reliable Hot Water
Whether it is an emergency replacement or a planned upgrade — we get your hot water flowing fast.
Call or Book Online
Tell us about your situation — emergency, upgrade, or new installation. For emergencies, we dispatch same-day. For planned work, we schedule a free site visit.
Size & Select
We calculate your peak hot water demand, recommend the right type and size, and provide an upfront quote with no hidden fees.
Install & Connect
We remove the old unit, install the new system, connect gas, water, and venting, and handle all permits and inspections.
Test & Warranty
We verify hot water delivery at every fixture, check for leaks, register your warranty, and clean up completely. Every installation is backed by our workmanship guarantee.
SERVICE AREA
Areas We Serve
Proudly serving all five NYC boroughs and surrounding areas.
Brooklyn
Manhattan
Queens
Bronx
Staten Island
Long Island
Call us — we likely serve your neighborhood too.
FAQ
Questions We Hear Every Day
Practical answers about commercial water heaters.
Does HVAC include water heater work? In NYC, no — water heater installation connects to the domestic plumbing system and falls under the licensed master plumber's scope. HVAC contractors handle the heating and cooling plant: boilers, chillers, heat pumps, and air handlers. Some mechanical firms hold both HVAC and plumbing licenses, allowing them to replace a water heater and service adjacent mechanical equipment in one mobilization, but the permits and inspections are filed separately.
Is water heater HVAC? No — in NYC, a commercial water heater is part of the domestic hot water system, which falls under the licensed master plumber's scope and DOB plumbing code, not the mechanical HVAC permit category. Some commercial buildings house water heaters alongside HVAC equipment in the same mechanical room, but they are licensed, permitted, and inspected as separate systems under distinct sections of the NYC Administrative Code.
Sizing a commercial water heater for a NYC restaurant typically requires a first-hour rating of 80–200 gallons, depending on dishwasher cycle frequency, prep sinks, and peak meal service. For a 20-to-30-unit residential building, a combined storage and recovery approach — often 2–3 tanks totaling 120–200 gallons with high-BTU recovery burners — handles morning peak demand. Load calculations based on fixture units per the NYC Plumbing Code govern the formal sizing.
Commercial water heaters in NYC typically last 10–15 years for gas-fired storage tanks and 7–12 years for electric units in high-demand settings. NYC's moderately hard water causes scale buildup on heating elements and tank walls, reducing efficiency and accelerating corrosion. Annual anode rod inspection, periodic tank flushing, and keeping thermostat settings at 120–140°F (hot enough for Legionella control per NYC Health Code) extend service life meaningfully.
Replacing a commercial water heater in NYC requires a plumbing permit filed by a licensed master plumber with the Department of Buildings. Gas-fired units also require a Con Edison gas tap-in inspection if the service is new or upsized, and the work must comply with NYC Fuel Gas Code provisions. For buildings with boiler rooms under DOB jurisdiction, the mechanical room permit application may also need to reference the new water heater. A final plumbing inspection closes the permit.
Still have questions? Contact us
No Hot Water?
No Problem..
Call for Same-Day Service.
Whether your water heater just failed or you are planning an upgrade to tankless — our licensed plumbers are ready. Same-day emergency replacement, transparent pricing, and full warranty on every installation.