Oregon HVAC Help
Aerial view of a residential air conditioning condenser unit mounted on a concrete pad next to a house with vinyl siding and a sliding glass door.

AC Installation in Salem, OR

Tell us about the house, and a licensed contractor who covers Marion County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
Overhead view of an air conditioning condenser unit on a concrete pad next to a house with asphalt shingle roofing and vinyl siding.

Salem doesn't ask much of an air conditioner

Summer afternoons here average 76°F. That's mild, and it means a new air conditioner in Salem isn't fighting the kind of heat that pushes a system hard for months at a time.

That doesn't change what the unit needs to be built to. Any new central air conditioner installed since 2023 has to meet a federal minimum of 13.4 SEER2, whether the summers are mild or not. The Salem area has seen a couple of hail events and a couple of damaging wind events over the past ten years, so the outdoor unit should be set up and installed with that in mind.

76°F
the average summer afternoon it cools against
2 hail events
in ten years, and hail bends the fins on outdoor coils
13.4 SEER2
the federal minimum any new unit must meet
Isometric line illustration of a cutaway house showing interior rooms, ceiling ductwork, an indoor air handler unit, and an outdoor condenser connected by lines along the exterior wall.
Your air conditioner works hardest from July through August.

NOAA nClimDiv, 1991–2020 normals

An outdoor central air conditioning unit mounted on a concrete pad beside a blue-sided house at sunset.

Going above the federal minimum saves little here, about $10 a year.

  • A higher-efficiency unit$110 a year
  • A new unit at the federal minimum, 13.4 SEER2$120 a year

Estimates for a typical Marion County home, from EIA household energy data, Oregon fuel prices and NOAA climate normals. Your home will differ.

Oregon requires HVAC contractors to hold a state license.

The license is held by the contractor's business, not issued job by job. Oregon's Construction Contractors Board tests and tracks the people it licenses, and work under $1,000 is the one exception the state carves out from needing one.

An air conditioner installation runs well past that threshold, so the contractor doing yours needs to hold that license. Most cities and counties also require a permit from the local building office for this kind of installation, with an inspection once the work is done, so the license is not the only check on the job.

Source: Oregon Legislative Assembly

What size air conditioner does my house need?
It depends on your square footage, how much shade and sun your walls and windows get, your insulation, and the layout of your ductwork. A contractor works this out with a load calculation, not by square footage alone. Putting in a unit that's too big or too small for the house causes problems either way, so this is worth getting right rather than guessing.
Should I replace the whole system or just the outdoor unit?
If your indoor coil and outdoor unit were installed together and are close in age, replacing just the outdoor unit usually is not the answer. Matching a new condenser to an old coil can hurt efficiency and sometimes voids the warranty on the new part. A contractor can check whether your coil and furnace or air handler are in good enough shape to keep, or whether the whole system should go in together.
Do HVAC contractors in Salem need a state license to work on my home?
Yes. Oregon requires HVAC contractors to hold a state license, issued through the Construction Contractors Board. The license belongs to the contractor, not to any one job. Installing an air conditioner also needs a permit from the local building office, with an inspection once the work is done.
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