AC Installation in Portales, NM
A new air conditioner in Portales will run from May through September every year. Tell us about the house, and a licensed contractor who covers Roosevelt County will get in touch.
Tell us about the job
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Five months of heat, and hail to survive in between
Portales asks a new air conditioner to run from May through September, five months of summer afternoons averaging 91°F. That is the stretch it has to get through every year, and it needs to be sized and installed to carry that load without strain.
Roosevelt County has logged 78 hail events and 53 damaging wind events over the past ten years, with hail as large as 2.75 inches. The outdoor unit sits outside through all of that, so how and where it gets installed matters as much as the unit itself. Any new central air conditioner installed since 2023 also has to meet a federal minimum of 14.3 SEER2.
- 5 months
- May through September, your air conditioner is on duty
- 91°F
- the average summer afternoon it cools against
- 78 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 Roosevelt County home, from EIA household energy data, New Mexico fuel prices and NOAA climate normals. Your home will differ.
New Mexico requires HVAC contractors to hold a state license.
The Construction Industries Division tests and licenses HVAC contractors across the state, including here in Roosevelt County. That license is tied to the contractor, not to any single job, so the same license has to cover this installation as much as the last one.
For an air conditioner installation, the license is what backs the person doing the work, but it is not the only check. Most cities and counties also require a permit from the local building office before the job starts, along with an inspection once it is done. That inspection is what confirms the new system was installed to code, separate from whatever the state license already tells you about the contractor.
Source: New Mexico Regulation and Licensing Department
- What size air conditioner does my house need?
- There is no single answer without looking at your house. A contractor sizes the unit by working through your square footage, your insulation, how many windows you have and which way they face, and your ceiling height. Going bigger than what the load calculation calls for is not a safety margin, it is a problem. An oversized unit cools the air fast but shuts off before it pulls the humidity out of the house, so the place feels clammy even at the right temperature. A contractor can run this calculation for your house and size the equipment to match.
- Should I replace the whole system or just the outdoor unit?
- If your outdoor unit is failing and the indoor coil and furnace or air handler are old too, replacing just the outdoor unit usually costs you in the long run. The indoor and outdoor parts are matched to work together, and pairing a new condenser with an old coil can mean the system never reaches the efficiency it is rated for, sometimes voiding the warranty on the new part. If the rest of the system is young and in good shape, swapping only the failed piece can make sense. A contractor looking at the age and condition of what you already have can tell you which situation you're in.
- Do HVAC contractors in Portales need a state license to work on my home?
- Yes. New Mexico requires HVAC contractors to hold a state license, issued through the Construction Industries Division. The license is held by the contractor, not issued per job, so it covers the person or company doing the work rather than the specific installation. For an air conditioner install, you will also typically need a permit from the local building office, with an inspection once the work is done.