Trusted San Antonio, TX, Water Heater Repair and Installation

Call Christianson Air Conditioning and Plumbing at 210-236-4793 for expert water heater repair and water heater installation anywhere in San Antonio, TX.

Hot water is one of those things you only think about when it is gone. Whether you wake up to a leaking water heater in Alamo Heights, a cold shower in Stone Oak, or inconsistent temperatures in Castle Hills or the Far West Side, Christianson Air Conditioning and Plumbing is ready to help. Our licensed plumbers service and install gas water heater and electric water heater systems of all sizes, from standard tanks to point-of-use water heater units, across Greater San Antonio and nearby areas like Boerne, New Braunfels, Seguin, and San Marcos. With trusted technicians, 24-hour emergency service for urgent issues, financing options, and our Christianson Annual Maintenance Program, we focus on safe, reliable hot water solutions for your home.

Tankless Water Heater Repair and Installation is a natural partner to our traditional water heater services. If you are considering moving from a tank to a tankless system—or need both types maintained in the same home—we can design options, provide straightforward pricing, and perform the work with minimal disruption.

Greater San Antonio Professional Water Heater Installation

A properly sized and professionally installed water heater is critical for comfort, safety, and efficiency. In Greater San Antonio, many homes rely on 40–50 gallon tanks, but growing families, added bathrooms, and soaking tubs often require larger units or supplemental solutions like a point of use water heater.

Types of water heaters we install

Water heater installation options we work with include:

  • Gas water heater: Atmospheric and power-vented tank models in a range of sizes.
  • Electric water heater: Standard and high-efficiency tanks for homes without gas lines.
  • Hot water tank installation: Replacement and new installs for storage tank systems.
  • Point-of-use water heater: Small units serving remote sinks, bars, or outbuildings.
  • Hybrid setups: Combinations of tank and tankless or point-of-use for special layouts.

We install reputable brands such as A.O. Smith water heaters and can integrate tank units with Noritz tankless water heaters or Rinnai tankless water heaters when a hybrid approach makes sense.

What professional installation includes

A typical professional water heater installation visit may involve:

  • Load and sizing review: Matching tank size and recovery rate to household needs.
  • Code-compliant setup: Proper venting, gas line connections, pans, and drains.
  • Safety devices: Installing shutoff valves, expansion tanks, and earthquake straps if required.
  • Water quality consideration: Evaluating hardness and recommending Nugen Systems water softeners when beneficial.
  • Startup and testing: Checking for leaks, proper combustion or power draw, and correct temperatures.

For new construction, remodel, and retrofit projects, we offer free estimates on water heater installation as part of the overall scope. For general service work, we do not provide free estimates, but many standard installations can be quoted ahead of time so you know what to expect.