HVAC Installation in League City, TX
A new system here will heat from December through February and cool 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.
Ten months of the year, your system is working
League City asks for cooling from April through October, with summer afternoons averaging 90°F. Heat comes on for December through February, when winter nights average 48°F. That leaves only two months where the system can rest.
Most homes here heat with electricity, so the air conditioner and the furnace often draw on the same power supply. Galveston County has seen 48 damaging wind events over the past ten years, and across Texas a third of households lost power for at least a day in 2024. A new system worth installing should hold up through that kind of season, not just a mild one.
- 3 months
- December through February, your system heats
- 7 months
- April through October, it cools
- 48°F
- the average winter night it heats against
- 90°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Texas requires HVAC contractors to hold a state license.
The Texas Department of Licensing and Regulation tests and records HVAC contractors before they can legally take on this kind of work. That license belongs to the contractor, not to the job itself, so it covers who is allowed to do the installation, not the details of how any one system gets put in.
For a heating and cooling installation, that oversight is backed up on the ground by the local building office. In most cities and counties, replacing a furnace, air conditioner or heat pump needs a permit before the work starts and an inspection once it is done. That inspection is what catches a bad gas connection or a wiring mistake, the kind of thing a license alone does not check on a specific job.
Source: Texas Department of Licensing and Regulation
- When should I replace my HVAC system?
- Replace it when repairs start happening every year or the unit is old enough that a breakdown feels like a matter of time. An air conditioner working hard April through October here, then sitting idle most of the winter, wears on a schedule. Rising repair bills or a system that struggles to keep up on the hottest afternoons are both signs it's cheaper to replace than to keep patching. A contractor can look at the age and condition of your specific unit and tell you where it stands.
- Should I replace my furnace and air conditioner at the same time?
- If both are near the end of their life, yes, because they usually share a blower and ductwork sized to work together. Homes here only need heat from December through February, so the furnace sees far less use than the air conditioner and often outlasts it. Replacing only the air conditioner is common and reasonable when the furnace is newer and still running well. A contractor can check whether the two are matched and whether it makes sense to do one now and the other later.
- What happens during an HVAC installation?
- A contractor removes the old equipment, sets the new unit, and connects it to your ductwork, refrigerant lines, and electrical or gas supply. They'll check the ducts for leaks or damage since those carry the air the new system produces. Once it's connected, the system gets charged with refrigerant if needed, tested, and checked for correct airflow and temperature. The timeline and scope depend on whether it's a straight swap or the ductwork needs work too, so a contractor can walk you through what your installation will involve.