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HVAC contractors in St. Louis, MO

A typical HVAC project runs $5,000 to $15,000. Tell us about yours and compare bids from local pros.

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  • 7 St. Louis HVAC pros listed
  • 4.9 average Google rating, weighted by review count, across 7 pros with reviews

How Much Does HVAC Cost in St. Louis, MO?

Typical Range

$5,000 to $15,000

The typical HVAC project range is $5,000 to $15,000, a general range for the service.

HVAC cost figures for St. Louis

HVAC cost figures for St. Louis, MO, with the source of each figure
FigureAmount and source
Typical project range$5,000 to $15,000Typical project range from our service pricing data.

What affects HVAC in St. Louis?

HVAC companies listed for St. Louis

7 HVAC companies are listed for St. Louis. They come from public business records and our own checks. Each one shows what we checked and the date where we have one. Listing is not a recommendation.

About St. Louis, MO

Population
288,512
Source: U.S. Census Bureau, American Community Survey, 2024
Median household income bracket
$50,000-$59,999
Source: U.S. Census Bureau, American Community Survey, 2024
Median annual property tax bracket
$2,000 to $2,999
Source: U.S. Census Bureau, American Community Survey, 2024
Climate zone
IECC climate zone 4A
Source: 2021 International Energy Conservation Code climate zone map
Storm history
From 2016 through 2025, St Louis City recorded 23 hail events of 1 inch or larger, 4 severe hail events of 1.75 inches or larger, 24 damaging-wind events of 58 mph or stronger, and 1 tornado event, per NOAA Storm Events data.
Source: NOAA Storm Events Database

ZIP codes in St. Louis

63101, 63102, 63103, 63104, 63105, 63106, 63107, 63108, 63109, 63110, 63111, 63112, 63113, 63115, 63116, 63117, 63118, 63119, 63120, 63123, 63125, 63130, 63133, 63136, 63137, 63138, 63139, 63143, 63147, 63155

From our guides

  • If your HVAC system just failed, you don't need a lecture on heat pump technology. You need a fast, honest answer: repair or replace? For most Midwest homeowners, the answer comes down to one calculation: multiply the system's age in years by the repair estimate in dollars.
    From HVAC Repair or Replace? The 5,000 Rule for Midwest Homes

HVAC in St. Louis: common questions

How much does HVAC cost in St. Louis, MO?

A typical HVAC project runs $5,000 to $15,000. That is a general range for the service, not a quote for St. Louis, MO. Your price depends on size, materials and access, so compare bids for your specific project.

How many HVAC companies are listed for St. Louis, MO?

We list 7 HVAC companies that serve St. Louis, MO. They come from public business records and our own checks, and each listing shows what we checked, with the date where we have one. A listing is not a recommendation.

How does the local climate affect HVAC in St. Louis, MO?

St. Louis sits in IECC climate zone 4A, per the 2021 International Energy Conservation Code climate zone map.

How do I get bids for HVAC in St. Louis, MO?

Describe your project in the bid form on this page. Companies that take this kind of work may contact you with bids. There is no obligation to hire anyone.

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Where else can I find HVAC contractors?

Cities in the St. Louis area

HVAC in other metro areas

Show 11 other metro areas