AC Installation in League City, TX
A new air conditioner in League City will run from April through October every year. Tell us about the house, and a licensed contractor who covers Galveston County will get in touch.
Tell us about the job
It takes about a minute.
Seven months of League City heat, and the storms in between
Your air conditioner runs April through October here, seven months a year. Summer afternoons average 90°F, so the compressor is working most of the year, not just a few weeks of it.
Galveston County has also logged 48 damaging wind events and 19 hail storms over the past ten years, with hail as large as 2.75 inches. The outdoor unit takes that weather directly, since the condenser coil and cabinet sit outside with nothing between them and the sky. Any new system installed today has to meet the federal efficiency minimum of 14.3 SEER2.
- 7 months
- April through October, your air conditioner is on duty
- 90°F
- the average summer afternoon it cools against
- 19 hail events
- in ten years, and hail bends the fins on outdoor coils
- 13.4 SEER2
- the federal minimum any new unit must meet

NOAA nClimDiv, 1991–2020 normals
A higher-efficiency unit would save about $30 a year to run in Galveston County compared with a new unit at the federal minimum.
Estimates for a typical Galveston County home, from EIA household energy data, Texas fuel prices and NOAA climate normals. Your home will differ.
Texas requires HVAC contractors to hold a state license.
Texas licenses HVAC contractors through the Texas Department of Licensing and Regulation. The license belongs to the contractor's business, not to this particular job, so it covers whoever holds it across every installation they take on, not just yours.
For a new air conditioner, that license tells you the contractor is the one allowed to do the work in this state. Whether this particular installation was done right is a separate check. In most cities and counties around Galveston County, setting a new air conditioner needs a permit from the local building office, and an inspector looks at the finished work once it is in.
Source: Texas Department of Licensing and Regulation
- What size air conditioner does my house need?
- There's no single number until someone works it out for your house. Sizing comes from a load calculation that looks at your square footage, insulation, window placement and how much shade your house gets. Too big and it cools the air fast but never runs long enough to pull the humidity out of the house. A contractor can run that calculation and tell you the right tonnage for your specific house.
- Should I replace the whole system or just the outdoor unit?
- In most cases you want to replace both at the same time. The outdoor condenser and the indoor coil are matched to work together, and pairing a new condenser with an old coil often means the system never hits the efficiency it's rated for. If your indoor coil is old, it may not even be compatible with the refrigerant a new outdoor unit uses. A contractor can check the age and condition of your coil and tell you whether it's worth keeping.
- Do HVAC contractors in League City need a state license to work on my home?
- Yes. Texas requires HVAC contractors to hold a state license, issued by the Texas Department of Licensing and Regulation. Ask to see it before work starts, it's a fair question and any licensed contractor expects it.


