HVAC Installation in Killeen, TX
A new system here will heat from November through March and cool from April through October every year. Tell us about the house, and a licensed contractor who covers Bell County will get in touch.
Tell us about the job
It takes about a minute.
A new system here works almost year round
Bell County only gives your system a few weeks off. Cooling runs April through October, seven months, with summer afternoons averaging 95°F. Heat takes over November through March, five months, with winter nights averaging 39°F. That is twelve months of one season handing off to the next, with barely a pause between them.
Most homes here heat with electricity, so a storm that takes down the power takes down the heat too. A third of Texas households lost power for at least a day in 2024, and this county has logged four winter storms and 44 damaging wind events over the past ten years. Whatever gets installed needs to hold up through that, and it needs to meet the federal efficiency minimum for a new system on top of it.
- 5 months
- November through March, your system heats
- 7 months
- April through October, it cools
- 39°F
- the average winter night it heats against
- 95°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Texas requires HVAC contractors to hold a state license.
The license comes from the Texas Department of Licensing and Regulation, and it covers the contractor, not the individual job. That is who the state holds responsible for the work.
For this installation, the license is what stands behind the person doing the work, but it is not the only check. Most cities and counties in Texas require a permit before a furnace, air conditioner or heat pump gets replaced, and an inspection once the work is done. That permit and inspection come from the local building office, not the state, and they exist to get someone to look at the gas connection, the wiring, and the refrigerant lines before the job is closed up.
Source: Texas Department of Licensing and Regulation
- When should I replace my HVAC system?
- Once your system is old and starting to need repairs more than once a year, replacing it makes more sense than keeping it patched together. Homes here need heat or cooling all 12 months of the year, so there is little rest between seasons for a unit that is already struggling. Rising energy bills, uneven temperatures room to room, and a system that runs longer than it used to are all signs the equipment is wearing out rather than just needing a repair. A contractor can look at the age, the condition, and the repair history and tell you honestly whether replacement is the better call.
- Should I replace my furnace and air conditioner at the same time?
- If both are old and starting to fail, replacing them together is usually worth considering, but it depends on the condition of each one. A furnace and air conditioner installed at different times can still work fine together as long as they're matched properly, so a healthy furnace doesn't need to come out just because the air conditioner is failing. Where it matters most is when one unit is likely to fail within a year or two anyway, since paying for two installations close together often costs more than doing them once. A contractor can check the age and condition of both and tell you whether pairing the work makes sense for your house.
- What happens during an HVAC installation?
- A contractor starts by removing the old equipment and checking the ductwork, electrical connections, and refrigerant lines to see what can be reused and what needs replacing. The new furnace or air conditioner gets set in place, connected to the ductwork or line set, wired in, and tied into the thermostat. Once it's running, the contractor checks refrigerant charge, airflow, and gas or electrical connections to make sure everything is working the way it should before they leave. The exact steps depend on whether it's a straight swap or involves changes to the ducts or electrical setup, which a contractor will walk you through for your specific house.