AC basics
Sizing and efficiency
Three guides on specifying a system. Sizing is where most replacements go wrong, and it goes wrong in a predictable direction — too big.

Guides in this section
AC tonnage chart: what size unit do I need?
A square-footage-to-tonnage chart for North Texas homes, plus the five things that move the answer — and why the chart alone should never size your system.
SEER2 ratings explained: what you actually need in Texas
SEER2 measures cooling efficiency across a season. The Texas minimum is 14.3, most homes land at 15–17, and here is where paying more stops making sense.
Single-stage vs two-stage AC: which is worth it?
A two-stage compressor runs longer at partial capacity, which controls humidity far better. What it costs, and the homes where it is genuinely worth it.
Find out what your house actually needs
A load calculation, a fixed written quote, and a straight answer about whether you should be replacing at all. Free, with no sales presentation attached.