Expert installation, repair, and replacement for A.O. Smith hot water tanks across Suffolk and Nassau County, backed by 24/7 emergency service.
Domino Fuel installs, repairs, and replaces A.O. Smith hot water tanks across Long Island. Our licensed plumbers service every A.O. Smith model, size it right for your home, and back every job with a free estimate and 24/7 emergency service.
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Since 1981
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A.O. Smith is one of the hot water tank brands we proudly install and service across Long Island. Our licensed plumbers know A.O. Smith systems inside and out, from quick repairs to full replacements and upgrades.
Browse all the hot water tank brands we carry, or see the rest of our plumbing services.
A.O. Smith builds commercial-grade residential water heaters in gas, electric, and hybrid heat-pump models, and also manufactures the State brand. ProLine XE Voltex hybrids reach up to 3.68 UEF.
A.O. Smith hot water tank highlights:
Here is roughly what a new storage tank water heater costs to install, using current national averages.
| Tank type | Typical installed cost (U.S. average) |
|---|---|
| Storage tank water heater, installed | $882 - $1,817 |
| By size and fuel | $600 - $2,500 |
Per HomeAdvisor and Angi (2026): tank water heaters average about $1,340 and range roughly $600 to $2,500 by size and fuel. Gas line, venting, electrical, and old-unit removal affect the final price.
Want your exact number? Costs vary by model and your setup, so we never guess. Get a free estimate for your exact A.O. Smith hot water tank price, with no obligation.
Here is a quick look at the main A.O. Smith hot water tank models we install and service on Long Island, so you can compare type, fuel, and capacity at a glance.
| Model / Series | Type | Fuel | Efficiency / Capacity | Best For |
|---|---|---|---|---|
| Signature / Signature Premier | Tank | Natural gas / electric | 40-80 gal | Reliable whole-home hot water |
| ProLine (gas) | Tank | Natural gas | 40-75 gal, up to 10-yr warranty | Durable, commercial-grade design |
| ProLine (electric) | Tank | Electric | 0.89-0.95 UEF | Efficient electric hot water |
| ProLine XE Voltex Hybrid | Heat pump (hybrid electric) | Electric | Up to 3.68 UEF | High efficiency, big savings |
Figures are manufacturer ratings. A.O. Smith also builds the State brand.
Every A.O. Smith hot water tank we install is sized to your household with the right first-hour rating and capacity, and set up to code with a temperature-and-pressure relief valve, an expansion tank where required, proper venting, and a clean gas or electrical connection.
We pull permits, haul away the old tank, and make sure you have safe, reliable hot water before we leave. See our full water heater installation guide or browse all hot water tank brands.
No hot water, leaks, rumbling, or rusty water? Our licensed plumbers diagnose and repair A.O. Smith hot water tanks fast, with 24/7 emergency service across Suffolk and Nassau County. We carry common parts so most repairs are done in one visit.
Routine maintenance, flushing sediment, checking the anode rod, and testing the relief valve, keeps your tank efficient and extends its life. See our water heater repair page.
When a tank is leaking from the shell, badly corroded, or past its prime, we make replacement simple. We will tell you honestly whether to repair or replace, and help you choose the right size, fuel, and efficiency, including a heat-pump or tankless upgrade if it fits.
We handle removal and disposal, any venting, gas, or electrical changes, and available rebates, all with a free estimate up front. See our water heater replacement page or compare all water heater brands.
Catching these early usually means a smaller, cheaper fix. Call us if your A.O. Smith hot water tank shows any of the following:
Repair is not always the smart money. It is usually time to replace when you see:
We stock or quickly source the parts that wear out most on A.O. Smith hot water tanks, so repairs and tune-ups stay fast:
Not sure what your hot water tank needs? Contact us or call (631) 779-3196 and we will diagnose it for you.
Not sure which brand fits your home? Explore the other hot water tank brands we install and service across Long Island.
Common questions about this hot water tank brand on Long Island.
Yes. Our licensed plumbers repair all A.O. Smith hot water tanks across Suffolk and Nassau County, including 24/7 emergency service.
Yes. We install and replace A.O. Smith hot water tanks, sized for your home and installed to code, with a free estimate up front.
A storage tank water heater typically lasts 8 to 12 years with maintenance. Flushing sediment and replacing a spent anode rod can add years. We will give you an honest repair-or-replace recommendation.
It depends on your household size and peak demand, measured by the first-hour rating. We will size it correctly so you do not run out, and give you a free estimate.
Yes. We offer financing on new hot water tank installations on Long Island. Ask about terms when you get your free estimate.
Yes. Domino Fuel is fully licensed and insured, and we install hot water tanks to manufacturer specifications.
Get a free, no-obligation quote from your local Long Island hot water tank experts.
