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

AC Installation in Douglas, WY

A new air conditioner in Douglas will run from July through August every year. Tell us about the house, and a licensed contractor who covers Converse County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
An outdoor air conditioning condenser unit mounted on a concrete pad next to a blue-sided residential house at sunset.

Two months of heat, and hail in between

Douglas only needs cooling in July and August, when summer afternoons average 82°F. A new air conditioner here is not working to keep up with a long, brutal summer. It just needs to be sized right for those two months and handle them well.

The outdoor unit still has to stand up to what this county sees the rest of the year. Converse County has logged 69 hail events and 141 damaging wind events over the past ten years, with hail as large as 4 inches. That makes the cabinet and coil worth asking about, not just the cooling output. Any new unit installed today also has to meet the federal minimum of 13.4 SEER2.

2 months
July through August, your air conditioner is on duty
82°F
the average summer afternoon it cools against
69 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 single-story building showing interior rooms, ceiling ductwork and an air handler, connected by lines to an outdoor condenser unit beside the exterior wall.
Your air conditioner works hardest from July through August.

NOAA nClimDiv, 1991–2020 normals

An outdoor air conditioning condenser unit installed beside the exterior wall of a blue vinyl-sided house at sunset.

Going above the federal minimum saves little here, about $20 a year.

  • A higher-efficiency unit$150 a year
  • A new unit at the federal minimum, 13.4 SEER2$170 a year

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

What size air conditioner does my house need?
The right size depends on your home's square footage, ceiling height, insulation, window placement, and how much shade it gets, not just a rule of thumb. A unit that's too big cools the air fast but shuts off before it pulls the humidity out, so rooms feel damp. One that's too small runs constantly and still can't keep up on the hottest afternoons. A contractor will run a load calculation on your actual house before recommending a size.
Should I replace the whole system or just the outdoor unit?
If your indoor coil and outdoor unit are more than a few years apart in age, replacing just the outdoor unit usually isn't a good idea. The two are matched to work together, and pairing an old coil with a new condenser can hurt efficiency and shorten the life of the new equipment. Refrigerant type matters too, since older systems may use one that isn't compatible with current units. A contractor can look at both pieces and tell you whether a match-up will work or whether it's time to replace the whole system.
Do HVAC contractors in Douglas need a state license to work on my home?
Yes, HVAC contractors need a state license to install or work on central air conditioning systems. Licensing means the contractor has met the state's requirements for training and passed the required exams. Ask to see the license number before work starts, and you can look it up to confirm it's active.