Takes about a minute. No obligation.
The size of the unit matters more than the brand. An air conditioner that's too big for the house cools the air fast and shuts off before it pulls the moisture out, so rooms feel clammy even when the thermostat says they're cool. One that's too small runs constantly and never catches up on the hottest days. Getting the size right means a contractor has to look at the square footage, the insulation, the windows, and the ductwork, not just swap in whatever matches the old unit. The ductwork itself is often the real cost driver. If it's undersized or leaky, running new duct or sealing what's there adds work that has nothing to do with the condenser or the coil sitting outside. Where the indoor and outdoor units go, and how far apart they are, also changes how much labor the job takes.
NOAA nClimDiv, 1991–2020 normals
Just over half of Midland County homes heat with electricity.
An electric furnace or heat pump paired with the new AC keeps the whole system on one fuel.
Midland County is zone 3B, a warm climate with a long run of hot months and a short mild winter. A new air conditioner going in here has to meet 14.3 SEER2, the regional minimum for the Southeast. That is higher than the 13.4 SEER2 floor that applies in most of the rest of the country. It rules out the lower-efficiency units still allowed elsewhere. Whatever gets installed has to clear this region's number, not the national one.
Cooling runs May through September here. Put the new system in during April and it goes in on your schedule, with time to size it right and sort out any duct work, instead of getting picked off the lot because the old one died mid season.
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Five months a year is a long stretch for a condenser to run near its limit. At 95 degrees outside, a system has to work harder to move heat out of the house, and it does that for the better part of summer here, not just a few weeks. That's the load the new unit has to be sized for, not the mild days in between. Ask the contractor to run a load calculation on this house rather than matching the tonnage of whatever is coming out. A unit sized for an easier climate will run long hours it wasn't built for and show problems sooner, a weak capacitor, a coil that ices up, a compressor working harder than it should.
A load calculation weighs square footage against the insulation, the window area and direction, the ceiling height, and how much heat the attic passes down. Houses that look alike from the street can need different tonnage once those are counted. Pulling the number straight off a nameplate or a rule of thumb skips the part that actually determines whether the unit matches the house.
A unit that's too large satisfies the thermostat fast, so it never runs long enough to pull humidity out of the air. The house can sit at the right temperature and still feel damp. The compressor also cycles on and off more, and that short-cycling wears parts faster than a system sized to run long, steady stretches.
Estimates for a typical Midland County home, from EIA household energy data, Texas fuel prices and NOAA climate normals. Your home will differ.
Installation day starts with the old equipment coming out, the indoor coil, the outdoor condenser, and the line set connecting them. A contractor checks whether that line set gets reused or replaced, since the wrong refrigerant lines can choke flow to the new unit. Setting the new condenser means leveling a pad outside and leaving clearance around it for airflow. Inside, the coil has to match the condenser. Mismatched parts are a common reason a new system never hits its rated efficiency. Once everything is connected, the lines get pulled into a vacuum to clear out moisture and air before refrigerant goes in. That step protects the compressor for the life of the system. Last comes the startup check, refrigerant charge, airflow across the coil, and whether the thermostat is talking to the system the way it should.
