New AC unit cost in Dallas for 2026: typical installed ranges by efficiency, why SEER2 and R-454B raised prices, and how to tell if a quote is fair.
The most common question we get once a repair conversation turns into a replacement conversation is simple: what does a new AC unit cost in Dallas? The honest answer is a range, and it’s a wider range in 2026 than it was a few years ago — new efficiency minimums and a refrigerant change both moved prices. This guide covers what a typical installed price looks like, what pushes a quote up or down, and how to tell whether a quote is fair.
These are typical installed ranges we see across Dallas and the surrounding suburbs for replacing the outdoor condenser and matching indoor coil on an existing, reusable duct system. They are not quotes — your home’s layout and condition will move the number.
| System Type | Typical Size Range | Typical Installed Range |
|---|---|---|
| Single-stage AC, entry efficiency (around 14–15 SEER2) | 2–5 tons | $6,500–$10,500 |
| Two-stage AC, mid efficiency (around 16–17 SEER2) | 2–5 tons | $9,000–$13,500 |
| Variable-speed AC or heat pump (18+ SEER2) | 2–5 tons | $12,500–$19,000 |
| Full system: AC + gas furnace or air handler | 2–5 tons | $10,000–$20,000+ |
Most single-story homes in Dallas and Richardson land in the 2.5- to 4-ton range; larger two-stories often have two systems, which roughly doubles the project.
Two industry changes landed close together:
If your furnace or air handler is under about 10 years old and in good shape, replacing only the outdoor unit and coil is usually reasonable. If both halves are 12 to 15 years old or more, replacing them together avoids a second install a few years later and ensures the blower is matched to the new outdoor unit. If you’re still deciding whether to replace at all, start with our repair vs. replacement framework for Dallas.
Sometimes, and the rules change. Utility programs through Oncor and manufacturer promotions come and go, and federal incentives have changed for 2026. Check our current guide to HVAC rebates and tax credits in Texas before you sign, and ask any contractor to show which rebates a specific model actually qualifies for.
We install across Dallas and the metroplex, and every replacement quote we write includes the indoor coil, permit, and model numbers so you can compare it line for line. Office hours are Mon–Fri 7–7 and Sat 8–5.
Call 214-900-2533 or see our AC installation services to schedule an in-home estimate.
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Kenny founded Absolute Comfort Mechanical after more than 20 years in the Dallas–Fort Worth HVAC trade, because he was tired of watching homeowners get sold equipment they didn't need. He still runs diagnostics himself and reviews the technical advice published on this site.
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Absolute Comfort Mechanical HVAC — licensed, insured, family-owned, serving the Dallas–Fort Worth metroplex. Call 214-900-2533 for 24/7 AC repair, heating, cooling, and commercial refrigeration service.
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