Aerial view of a square outdoor air conditioning condenser unit on a concrete pad beside a house wall with a sliding glass door.

AC Installation in Lawton, OK

A new air conditioner in Lawton will run from May through September every year. Tell us about the house, and a licensed contractor who covers Comanche County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
Overhead view of an outdoor AC condenser unit on a concrete pad next to a house with a dark shingle roof.

Five months of Lawton heat, and the storms that come with it

Your air conditioner runs May through September here, five months a year, with summer afternoons averaging 94°F. Whatever gets installed has to hold up through that whole stretch, not just a few hot weeks.

Comanche County also sees its share of hail and wind. The last ten years brought 185 hail events and 148 damaging wind events, with hail up to 4 inches recorded. The outdoor unit sits through all of that, so where and how it gets installed matters. Any new central air conditioner installed today also has to meet the federal efficiency minimum of 14.3 SEER2.

5 months
May through September, your air conditioner is on duty
94°F
the average summer afternoon it cools against
185 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 cutaway illustration of a single-story house showing interior rooms with furniture, attic ductwork connected to an indoor air handler, and an outdoor condenser unit on a pad linked by refrigerant lines.
Your air conditioner works hardest from June through September.

NOAA nClimDiv, 1991–2020 normals

Aerial view of a gray outdoor air conditioning condenser unit mounted on a concrete pad next to a house with vinyl siding.

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

  • A higher-efficiency unit$350 a year
  • A new unit at the federal minimum, 14.3 SEER2$370 a year

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

Oklahoma requires HVAC contractors to hold a state license.

Oklahoma licenses HVAC contractors through the Construction Industries Board. That license belongs to the contractor, not to this one job, so the same license covers whatever work they do next.

For an installation like this one, that license is what stands behind the person doing the work in Comanche County. Most cities and counties also require a permit from the local building office before the installation starts, with an inspection once the air conditioner is in, so someone outside the contractor checks it too.

Source: Oklahoma State Legislature

What size air conditioner does my house need?
It depends on your square footage, ceiling height, window placement, insulation and how many people live in the house. A contractor works this out with a load calculation, not a rule of thumb based on square footage alone. Putting in a unit that is too big cools the house fast but shuts off before it pulls the humidity down, and one that is too small runs constantly on those 94 degree afternoons and still falls behind. Have a contractor measure your house rather than guessing from the size of the old unit.
Should I replace the whole system or just the outdoor unit?
If your indoor coil is old, replacing just the outdoor unit usually means matching an old coil to new refrigerant and new capacity, and that mismatch can keep the system from cooling right or wear it out faster. Manufacturers pair a specific coil with a specific outdoor unit for a reason. A contractor can check what refrigerant and coil you have now and tell you whether the indoor unit can handle a new outdoor unit or whether both need to go at once.
Do HVAC contractors in Lawton need a state license to work on my home?
Yes. Oklahoma requires HVAC contractors to hold a state license, issued through the Construction Industries Board, and it covers the contractor rather than the individual job. On top of that, installing a new air conditioner in most cities and counties needs a permit from the local building office, plus an inspection once the work is done. Ask any contractor for their license number before they start, and confirm the permit gets pulled for the job.