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Compare HVAC costs in Longmont, CO (2026)
Not sure which option fits? Here's how every HVAC project compares in Longmont — local 2026 estimates plus what each choice is best for. The most budget-friendly option here is Furnace Replacement (from $4,350).
Furnace ReplacementBest value$4,350 – $7,800
Best for: Lowest upfront cost for homes with gas heatTypically $6,100
Central AC Installation$5,450 – $11,650
Best for: Cooling only — pairs with an existing furnaceTypically $8,550
Heat Pump Installation$7,050 – $12,850
Best for: Most efficient; heats and cools in one systemTypically $9,950
Full HVAC System Replacement$8,650 – $16,000
Best for: Best when both heating and cooling are dueTypically $12,350
Often paired with HVAC in Longmont
Homeowners tackling HVAC frequently budget for these too.
Estimates are localized to Longmont (cold climate) using local labor price levels, climate factors and permit fees. Always confirm with local contractors.