Water heater leaking — do this now
- Shut off the cold water supply to the tank. There’s usually a dedicated valve on the cold water line above the tank.
- Shut off the power — gas valve for gas heaters, breaker for electric. A dry heating element burns out in minutes.
- Assess the leak location. Top fittings? Side wall? Bottom? Different sources mean different urgency.
- Call a plumber for repair or replacement, and call Vault at (385) 250-2825 if water has reached flooring, walls, or any living space.
- Photograph everything for insurance before cleanup.
Where water heaters leak from (and what each means)
Top of the tank (fittings)
Usually a loose cold-water inlet, hot-water outlet, or temperature-pressure relief (T&P) valve. Often repairable — tighten fittings, replace valve, replace flex connectors. $150-$450 by a plumber.
Side of the tank (through a wall seam)
The tank interior has cracked or corroded through. Not repairable — replace the tank. Age it: tanks over 8 years old are often at end of life.
Bottom of the tank
Also means tank failure in most cases — bottom corrosion, often around the drain valve or where the tank sits on the pan. Replace.
T&P valve discharging
The temperature-and-pressure relief valve releases water if the tank over-pressurizes (too hot, over-pressured supply). Could be the valve itself, the thermostat, or an actual overpressure condition. Shut off and call a plumber.
Pilot pan or drip pan full
Water is leaking slowly from somewhere above, pooling in the pan. If the pan has a drain, it’s doing its job. If not, water is building up.
Common Utah water heater failures
- Sediment corrosion. Utah’s hard water deposits sediment in the tank bottom. Over 5-10 years, sediment traps heat against the steel, accelerating corrosion. Flushing annually extends life.
- Anode rod exhaustion. The sacrificial anode rod protects the tank interior. After 5-7 years it’s often fully consumed; the tank starts corroding. Replacement $150-$300.
- Freeze damage. Water heaters in unheated spaces (garages, crawlspaces, exterior utility rooms) can freeze and crack during Utah winter cold snaps.
- Flex connector failure. Braided stainless flex lines to the inlet/outlet degrade over 10-15 years. Burst connector is a classic cause of unoccupied-home flooding.
- Earthquake strap failure. Required in some Utah jurisdictions. Not usually a leak cause but relevant for seismic risk.
Repair vs replace
| Age of tank | Issue | Repair or replace? |
|---|---|---|
| Under 5 years | Fitting leak | Repair |
| Under 5 years | Tank failure | Replace (warranty may apply) |
| 5-10 years | Fitting leak | Repair; consider replacement planning |
| 5-10 years | Tank failure | Replace |
| Over 10 years | Any leak | Replace — tank is at end of life |
Water heater replacement cost in Utah
- Standard 40-50 gallon gas tank, like-for-like swap: $1,500-$2,800 installed
- Standard 50-80 gallon electric: $1,800-$3,200
- Tankless gas conversion: $3,500-$6,500
- Heat pump water heater: $3,500-$5,500 (rebates sometimes available)
- Expansion tank addition (required by some Utah codes): +$150-$350
- Code upgrades (venting, earthquake strap, drip pan): +$200-$800
Water damage from a failed water heater
A 50-gallon tank can release its full contents to the floor in 20-40 minutes once a tank crack opens. If the water heater is in a basement, a utility room on carpet, or a space with hardwood floors, that water goes everywhere.
Vault’s role: extract, dry, mitigate damage to flooring, drywall, and contents. Insurance usually covers water heater burst as sudden-and-accidental:
- Covered: damage to the house and contents from the leak
- Usually NOT covered: the water heater itself (equipment maintenance)
How to prevent water heater disasters
- Install a drip pan with drain under the tank — catches small leaks before they damage flooring. $75-$200.
- Install a water heater shutoff valve you can reach easily — not above the tank where you need to climb to access.
- Install a leak detector near the water heater base. $20-$40 for a puck alarm; $60-$150 for a Wi-Fi detector.
- Flush the tank annually to remove sediment.
- Replace the anode rod every 5-7 years.
- Replace flex connectors every 10 years with braided stainless.
- Replace the tank proactively at year 10 — don’t wait for failure.
- For unoccupied / vacation / second homes: install a whole-home automatic shutoff. Catches the burst at any hour.
Water heater leaked and your floor is wet?
Call (385) 250-2825. Shut off cold-water supply and power first; we handle the restoration.
Water damage services · Burst pipe — what to do · Water damage timeline · Water damage prevention · Insurance claims
More guides: Expansion tank leaks · High water pressure and leaks
Inside Provo city limits we guarantee a crew within 45 minutes, Mon–Sat 8 AM–5 PM. See Provo emergency water damage.