Onsite HVAC

Hot Water Tank Install, Service and Repair

Installing a hot water tank is a complex process that should only be done by a licensed professional. A licensed installer will ensure that the tank is installed correctly, taking into consideration factors like the size of the tank, the location, and the electrical or gas connections. An incorrect installation can cause numerous problems, including water leaks, poor performance, and even hazardous conditions.

During the installation process, our installers typically follow these steps:

  • Assess the area where the hot water tank will be installed, including the space and any necessary electrical or gas connections.
  • Remove the old water heater (if applicable).
  • Install the new tank, connecting it to the appropriate electrical or gas lines and making sure that it is level and secure.
  • Turn on the power or gas and test the tank to ensure it is functioning correctly.


If you notice any issues with your hot water tank, it’s crucial to address them quickly. Ignoring a problem can lead to more severe damage and costly repairs. Some common signs that your hot water tank needs repair include:

  • No hot water
  • Water leaks
  • Strange noises
  • Low water pressure
  • Discolored water

When you call Onsite to repair your hot water tank, we will typically follow these steps:

  • Diagnose the problem by checking the tank, connections, and surrounding pipes.
  • Provide an estimate for the repair cost.
  • Perform the necessary repairs, which may include replacing parts or making adjustments to the tank or surrounding pipes.
  • Test the tank to ensure it is functioning correctly.

Regular servicing of your hot water tank is essential to ensure it is functioning efficiently and safely. Servicing typically involves checking the tank, pipes, and connections for any signs of wear and tear, cleaning the tank, and making any necessary adjustments. It is recommended that you have your hot water tank serviced once a year to maintain optimal performance.

During a hot water tank service, our professionals will typically follow these steps:

  • Shut off the power or gas to the tank.
  • Drain the tank and flush out any sediment or debris.
  • Inspect the tank, connections, and pipes for signs of wear and tear.
  • Make any necessary adjustments, such as tightening connections or replacing parts.
  • Refill the tank and turn on the power or gas.
  • Test the tank to ensure it is functioning correctly.


Maintaining your hot water tank is crucial to extend its lifespan and prevent costly repairs. Regular maintenance includes performing tasks like draining and flushing the tank to remove sediment and debris, checking the temperature and pressure relief valves, and insulating the tank to improve efficiency.

Here are various maintenance tasks we perform on your hot water tank:

  • Drain and flush the tank to remove sediment and debris.
  • Check the temperature and pressure relief valves to ensure they are functioning correctly.
  • Insulate the tank to improve efficiency and prevent heat loss.
  • Check the anode rod and replace it if it is corroded.
  • Check the tank for leaks or signs of wear and tear.

We follow the manufacturer’s instructions when performing any maintenance tasks on your hot water tank. All the above is recommended to be handled by a licensed professional such as Onsite Heating and Cooling.


Whether you need a hot water tank installed, repaired, serviced, or maintained, it’s essential to contact a licensed professional. Attempting to perform any of these tasks yourself can lead to hazardous conditions or costly repairs.

By following the manufacturer’s instructions for maintenance and having your tank regularly serviced, you can extend its lifespan and improve its efficiency, saving you money in the long run.

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