If you are running out of hot water too quickly, have no hot water, a noisy water heater, or find a leak, call Atlas HVAC, Inc. We store most commonly used parts and usually are able to fix the problem right away. Although many water heater problems can be repaired, there are times when your hot water heater is due for a replacement. If the tank is over 10 years old or the tank itself is leaking, you will most likely need a new installation. Water underneath the water heater is almost always a sure sign that your water heater needs replacing.