HVAC Installation in Jacksonville, NC
A new system here will heat from November through March and cool from May through September every year. Tell us about the house, and a licensed contractor who covers Onslow County will get in touch.
Tell us about the job
It takes about a minute.
Onslow County asks a lot from both ends of the system
Homes here need heat from November through March, five months of winter nights that average 35°F. Then the system switches jobs. Summer afternoons average 88°F, and homes here run cooling from May through September, five more months. Ten months of the year, a system here is doing one or the other.
Most homes in North Carolina heat with electricity, so the equipment and the power behind it both matter. Wind is the bigger risk here than winter storms, with 68 damaging wind events recorded over the past ten years against two winter storms, and a quarter of North Carolina households went at least 24 hours without power in 2024. A new system installed here has to handle the heat, the cold, and the chance the power goes out in between.
- 5 months
- November through March, your system heats
- 5 months
- May through September, it cools
- 35°F
- the average winter night it heats against
- 88°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
North Carolina requires HVAC contractors to hold a state license.
The license comes from the State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors, and it belongs to the contractor, not to the job in front of them. The board tested that contractor and keeps a record of them before this one ever came up.
On a full system install like this one, the license tells you the person doing the work was vetted for the trade. What checks the job itself is the permit. In most cities and counties in North Carolina, putting in a new furnace, air conditioner or heat pump needs a permit from the local building office, and the finished work gets an inspection before anyone calls it done.
Sources: North Carolina General Assembly · North Carolina State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors
- When should I replace my HVAC system?
- Once repairs start happening every year, or the system is old and just had a major part fail, replacing it usually makes more sense than fixing it again. An aging system also loses efficiency, so you pay more to run it even when it isn't breaking down. A contractor can look at the age and condition of your specific system and tell you where it stands.
- Should I replace my furnace and air conditioner at the same time?
- If both are old, replacing them together is often worth considering, since a furnace and air conditioner installed years apart can end up mismatched in output and efficiency. A furnace and air conditioner that were installed together are built to work as a pair. Homes here need heat from November through March and cooling from May through September, so both systems get real use every year and wear on a similar schedule. If only one has failed, a contractor can tell you whether the other is worth replacing now or later.
- What happens during an HVAC installation?
- The contractor removes the old equipment, sets the new furnace or air conditioner in place, and connects it to the ductwork, electrical, and, for a furnace, the gas line or refrigerant lines. Once it's connected, they test the system, check refrigerant charge and airflow, and make sure it's running the way it should. North Carolina requires HVAC contractors to hold a state license for this work, and in most cities and counties the job also needs a permit from the local building office along with an inspection once it's finished.