HVAC Installation in Mableton, GA
A new system here will heat from November through April and cool from May through September every year. Tell us about the house, and a licensed contractor who covers Cobb County will get in touch.
Tell us about the job
It takes about a minute.
Mableton runs a system almost all year
A home in Mableton needs heat or air conditioning 11 months of the year. Winter nights average 34°F from December through February, and summer afternoons run near 88°F from May through September. That is a long season on both ends, and a new system has to handle both without much rest between them.
Most homes here heat with gas, and a new furnace has to meet the federal minimum efficiency rating. On the cooling side, the unit is doing real work for five months straight. Cobb County has also seen 70 damaging wind events over the past ten years, and across Georgia, close to a third of households lost power for at least 24 hours in 2024. A new system should start back up on its own once the power does.
- 6 months
- November through April, your system heats
- 5 months
- May through September, it cools
- 34°F
- the average winter night it heats against
- 88°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Georgia requires HVAC contractors to hold a state license.
The license comes from the State Construction Industry Licensing Board, and it belongs to the contractor, not to any single job. That means the state tested this contractor before handing it out, and there is a record of who holds it. It does not mean the board checks in on your installation once the work starts.
For a job like this, in most cities and counties in Georgia, putting in a new furnace, air conditioner or heat pump needs a permit from the local building office and an inspection once the work is done. That inspection is what confirms the new system was connected correctly, not the license. The license tells you who is allowed to do the work. The permit and inspection tell you it was done right in your home.
Source: Georgia Secretary of State
- When should I replace my HVAC system?
- Once repairs keep coming back, or a repair costs a large share of what a new system would, replacement is usually the better move. Age matters too, and a system nearing the end of its life will start showing it through more frequent breakdowns. In Mableton, homes need heat or cooling 11 months of the year, so a system that struggles is one you will notice fast. A contractor can look at the repair history and how the unit is running now 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, replacing them together often makes sense because they are built to work as one system. A furnace and the indoor coil that pairs with it are matched for airflow and efficiency, so putting a new air conditioner on an old furnace, or the other way around, can leave you with a mismatch that never runs quite right. That said, if one unit is much newer than the other, there is no reason to replace something that still has years left in it. A contractor can check the condition of both and tell you whether pairing them makes sense for your house.
- What happens during an HVAC installation?
- A contractor first sizes the new equipment to your house, since a furnace or air conditioner that is too big or too small will not heat or cool evenly. The old unit comes out, and the new one goes in along with any duct, electrical, or gas line work it needs to connect properly. Once it is running, the contractor tests it, checks refrigerant charge or gas pressure, and confirms airflow at the vents before calling the job done. What the work involves depends on the equipment and the house, so a contractor can walk you through the specifics for your setup.