Central AC Installation cost: Houston vs San Marcos (2026)
In 2026, central AC installation is about 3% less expensive in Houston than in San Marcos. Most homeowners pay around $9,300 in Houston versus $9,600 in San Marcos — a gap of roughly $300.
Houston TX
Lower costTypically around $9,300
San Marcos TX
Typically around $9,600
Houston vs San Marcos: full breakdown
| Factor | Houston | San Marcos |
|---|---|---|
| Typical 2026 cost | $9,300 | $9,600 |
| Estimated range | $5,900–$12,650 | $6,100–$13,100 |
| Labor index (vs US) | ×0.96 | ×0.99 |
| Climate zone | Hot | Hot |
| Climate factor | ×1.08 | ×1.08 |
| Local permit | $225 | $225 |
| Labor share | $5,600 | $5,750 |
| Materials/equipment | $3,700 | $3,850 |
Localized 2026 planning estimates — not quotes. Each city adjusts the national central AC installation range for local labor, climate and permits.
Houston vs San Marcos
Is central AC installation cheaper in Houston or San Marcos?
In 2026, central AC installation is cheaper in Houston at about $9,300, versus $9,600 in San Marcos — a difference of about $300 (3%).
Why does central AC installation cost more in San Marcos than Houston?
The main driver is local labor rates: San Marcos's labor index is 0.99 versus 0.96 in Houston. Climate zone (hot vs hot) also shift the total.
How much is central AC installation in Houston, TX?
In Houston, central AC installation typically runs $5,900–$12,650 in 2026, with most homeowners paying around $9,300.
Updated June 2026 · By Costadia Editorial