HVAC Replacement Cost in St. Louis, MO
HVAC Replacement in St. Louis, MO costs a median of $7,338, with the middle 50% of projects between $4,465 and $10,515. Based on 32,387 permits filed between January 2018 and June 2029 with City of St. Louis Department of Public Safety. Last updated July 10, 2026.
Sourced from 32,387 building permits on file with the City of St. Louis. Source: St. Louis Building Permits.
Types of HVAC Replacement Work in St. Louis
| Type | Typical cost | Range | Projects |
|---|---|---|---|
| AC System | $9,000 | $800 - $30,000 | 79 |
| Boiler | $15,000 | $200 - $30,000 | 61 |
| Ductwork | $11,000 | $150 - $20,550 | 15 |
| Furnace | $4,000 | $600 - $25,000 | 77 |
| Heat Pump | $7,950 | $1,000 - $25,000 | 40 |
What Most Homeowners Paid
Featured Contractors in St. Louis
Flat-fee paid placements. License verification required.
No featured contractors yet for HVAC Replacement in St. Louis.
Featured listings are flat-fee paid placements for licensed contractors. Permit history and license verification required.
Claim a ListingLast updated:
Public record data. HomeQuotr does not alter, estimate, or interpolate permit values.
Track St. Louis HVAC Replacement Prices
Get an email when the median moves 5 percent or more, or when permit volume crosses a new tier. Data-driven cadence, never marketing blasts.
Free. One-click unsubscribe. Never sold.
Half of all projects cost less. Half cost more.