If your water heater is leaking, shut off the cold-water valve on top of the tank first, then turn off the power (breaker) or the gas (the dial on the gas valve to OFF). Call (201) 676-3099 or book a free estimate.
If your water heater is leaking, shut off the cold-water valve on top of the tank first, then turn off the power (breaker) or the gas (the dial on the gas valve to OFF). A leak from a fitting or the relief valve is usually a $150 to $600 repair. Water coming from the bottom of the tank means the steel tank has rusted through, and the only fix is a new heater.
Here is what to do in the next ten minutes, how to tell which kind of leak you have, and what each one costs in New Jersey in 2026.
Do this right now
Follow the cold pipe into the top of the tank. Turn the valve clockwise until it stops (a lever handle turns a quarter turn). If the valve is stuck or broken, shut off the main water valve for the house instead.
Electric heater: flip its breaker off. Gas heater: turn the dial on the gas control box to OFF. Never run a heater with no water in it; it destroys the elements or the tank in minutes.
Boxes, rugs, the vacuum, anything on the floor near the tank. A 50-gallon tank can put 50 gallons on your floor.
Dry the tank with a towel and watch. Top fittings, the relief valve pipe on the side, the drain valve at the bottom, or the bottom seam of the tank itself. Take a photo of where the water shows up first.
Text the photo to (201) 676-3099. We tell you on the phone whether it is a repair or a replacement and give you a price before we roll a truck.
Where it leaks tells you what it costs
A tank that leaks from its bottom seam is finished. Sealants and patches do not hold on a pressurized steel tank, and the next leak is usually bigger. If the heater is more than 8 years old, put the repair money toward the replacement.
| Where the water is coming from | What it usually is | Typical NJ fix, 2026 |
|---|---|---|
| Fittings or pipes on top of the tank | Loose or corroded connection | $150 – $450 repair |
| The pipe on the side that runs toward the floor (T&P relief valve) | Valve opening from high pressure or a failed valve | $200 – $600 (valve, or an expansion tank if pressure is the cause) |
| The drain valve at the bottom | Cheap plastic valve failed | $150 – $350 repair |
| Puddle under the tank, no wet fittings above | Tank rusted through | Replacement: $1,800 – $4,500 for a standard gas tank |
| Water around a tankless unit | Scale, a cracked heat exchanger or a fitting | $250 – $1,500 repair; replacement $4,500 – $8,500 |
Repair or replace? A 30-second rule
- Under 6 years old and leaking from a fitting or valve: repair it.
- Over 8 years old and leaking anywhere: replace it. You are paying to fix a heater that is near the end anyway.
- Leaking from the tank body at any age: replace it. There is no repair.
- Rust in the hot water, rumbling sounds, or a pilot that keeps going out on an older heater: plan the replacement now, before it leaks on a Sunday night.
What a replacement includes in New Jersey
A real replacement is not just a new tank. It includes new shutoff and flex connections, a new T&P discharge pipe run to code, a drain pan if the heater sits over a finished floor, a check of the flue and draft on a gas unit, and the plumbing permit your town requires. Most of our swaps are done the same day or the next morning.
Going tankless? Read our tankless vs tank guide first. It is a great choice for a lot of NJ homes, but it needs a gas line and venting the old heater never had.
How to stop the next one
- Have the T&P valve tested and the tank flushed once a year. Sediment is what eats the bottom of the tank.
- Add an expansion tank if you have a pressure regulator or a check valve on the main. Without one, pressure spikes force the relief valve open.
- Put a $15 leak alarm on the floor next to the heater. It screams before the puddle reaches the carpet.
- Write the install date on the tank with a marker. At 10 years, replace it on your schedule instead of the heater's.
Questions people ask next
Is a leaking water heater an emergency?
Yes, if water is spreading or the leak is from the tank body. Shut off the water and the power or gas, then call. A slow drip from a fitting can wait until morning as long as the water is off.
Can I still use hot water if the water heater is leaking?
Not safely. With the cold-water valve off, the tank cannot refill, and running it low can damage it. Turn it off and wait for the repair or replacement.
How long does a water heater last in New Jersey?
Eight to twelve years for a standard tank. Hard water and a tank that was never flushed push it toward eight. Tankless units last 15 to 20 years with yearly descaling.
Why is water coming out of the pipe on the side of my water heater?
That is the temperature and pressure relief valve doing its job. Either the house pressure is too high, the thermostat is set too hot, or the valve itself has failed. It needs a plumber, but it is usually not a tank replacement.
Does homeowners insurance cover a leaking water heater?
Usually it covers the sudden water damage to floors and walls, but not the heater itself. Take photos before you clean up, and call your insurer if the damage is more than a wet floor.
Need water heater replacement near you?
If you searched “water heater replacement near me” anywhere in New Jersey, that's us. First Call Contracting is based in Paramus and sends its own licensed crew to all 21 counties — written price before work starts, no deposit, a real person on the phone 24/7.
Leaking right now?
Text a photo to (201) 676-3099. We tell you repair or replace on the phone, give you the price first, and most replacements are done the same day.
Or call Alex direct: (201) 676-3099