AC Installation in Millbrook, AL
A new air conditioner in Millbrook will run from May through September every year. Tell us about the house, and a licensed contractor who covers Elmore County will get in touch.
Tell us about the job
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Five months of Millbrook summer, and it works hard every one of them
From May through September your air conditioner is on most days, working against afternoons that average 91°F. That is the stretch where a unit either keeps up or you find out it can't.
Hail and wind come through Elmore County too, 18 hail events and 81 damaging wind events over the past ten years, with hailstones up to 2.5 inches. Whatever gets installed outside your home has to hold up to that. If you're putting in a new central air conditioner, it also has to meet the federal minimum of 14.3 SEER2, the efficiency standard that applies to new systems built since 2023.
- 5 months
- May through September, your air conditioner is on duty
- 91°F
- the average summer afternoon it cools against
- 18 hail events
- in ten years, and hail bends the fins on outdoor coils
- 13.4 SEER2
- the federal minimum any new unit must meet
NOAA nClimDiv, 1991–2020 normals
Going above the federal minimum saves little here, about $20 a year.
Estimates for a typical Elmore County home, from EIA household energy data, Alabama fuel prices and NOAA climate normals. Your home will differ.
Alabama requires HVAC contractors to hold a state license.
Alabama's board tests contractors before it issues this license, and the license belongs to the contractor, not to any single job. That means the person or company doing your installation is the one the state tested and keeps on record, not just the crew that shows up that day.
Most cities and counties in Alabama also require a permit for an air conditioner installation, with an inspection once the work is done. That permit is separate from the state license. The license tells you the contractor was tested and is on file with the board. The permit and inspection are the check on this particular job, and in most places that check comes from the local building office rather than the board.
Source: Alabama Board of Heating, Air Conditioning and Refrigeration Contractors
- What size air conditioner does my house need?
- It depends on your square footage, your insulation, how many windows you have and which way they face, and how much shade your house gets. A contractor works this out with a load calculation, not a chart based on square feet alone. Two houses the same size on the same street can need different tonnage. With summer afternoons here averaging 91°F, sizing it right matters more than usual, since an undersized unit will run flat out all day and an oversized one will cool the house fast but leave it damp.
- Should I replace the whole system or just the outdoor unit?
- If your indoor coil and outdoor unit were installed at the same time and are a matched set, replacing just the outdoor unit can throw off that match and hurt both efficiency and how well the system dries the air. Refrigerant type is another issue. Older systems use refrigerants that new outdoor units are not built to run on, so pairing an old indoor coil with a new outdoor unit is not always possible. A contractor can look at the age and condition of both pieces and tell you whether a partial swap makes sense for your system or whether it needs to go in as a pair.
- Do HVAC contractors in Millbrook need a state license to work on my home?
- Yes. Alabama requires HVAC contractors to hold a state license, issued by the Alabama Board of Heating, Air Conditioning & Refrigeration Contractors. Ask to see it before work starts.