HVAC Installation in Tyler, TX
A new system here will heat from November through March and cool from May through October every year. Tell us about the house, and a licensed contractor who covers Smith County will get in touch.
Tell us about the job
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Eleven months of work for a Smith County system
Summer afternoons here average 93°F, and cooling runs May through October. Winter nights average 38°F from December through February, with heat needed November through March. That is 11 months a year your system is doing one job or the other, with only one month off in between.
A new system has to be sized for both jobs, not just the one that feels most urgent right now. Smith County has also seen 9 winter storms and 148 damaging wind events over the past ten years, and close to 6 in 10 homes here heat with electricity. In a state where a third of households went at least a day without power last year, that is worth asking your contractor about when you're picking a system.
- 5 months
- November through March, your system heats
- 6 months
- May through October, it cools
- 38°F
- the average winter night it heats against
- 93°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 issues that license, and it is tied to the contractor, not to any single job. The same license has to stand behind the work whether it is a small repair or a full system swap.
For a heating and cooling installation, that license is what stands behind the work, but it is not the only check on it. In most cities and counties here, putting in a new furnace, air conditioner or heat pump needs a permit from the local building office, and the work gets inspected once it is done. The permit and inspection cover the finished job in your house, separate from the contractor's license with the state.
Source: Texas Department of Licensing and Regulation
- When should I replace my HVAC system?
- Look at how often it breaks down and how old it is. Once a furnace or air conditioner needs repairs more than once a season, or a repair is a major one, replacement usually makes more sense than sinking more money into an old unit. Homes here need cooling from May through October and heat from November through March, so a system that struggles in the mild months will only get worse when the weather turns. A contractor can look at the unit's condition and tell you whether it is worth repairing or time to replace.
- Should I replace my furnace and air conditioner at the same time?
- If both are old, it usually makes sense to replace them together. A furnace and air conditioner installed at the same time are matched to each other, and a contractor sizing a new system can design for both instead of building around an aging partner unit. If only one has failed and the other is still in good shape, a contractor can install just the one that needs it. Either way, a contractor looking at both units can tell you what your house actually needs.
- What happens during an HVAC installation?
- A contractor sizes the equipment to your house first, since a furnace or air conditioner that is too big or too small will not heat or cool evenly. The old equipment comes out, and the new furnace or air conditioner is set in place and connected to your ductwork, gas line or electrical circuit, and refrigerant lines as needed. The contractor then tests the system, checks airflow, and confirms it is running correctly before finishing up. A contractor can walk you through what your specific house will need before the work starts.

