Window A/C Unit Replacement Cost in Thornton, CO
What homeowners in Thornton typically pay to replace a window a/c unit in 2026.
Typical range
$300–$950
Most homeowners pay around $600 installed.
EstimatedUpdated 6/17/2026
How we calculated this
Retail supply costs are marginally higher due to the inland geographic location.
Nearby cities
Other hvac replacement costs in Thornton
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