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HVAC cost guide · Missouri

AC & furnace repair and installation in Missouri

Same-day pros across 87 Missouri cities. Estimate your cost, then call to lock in the price.

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No obligation — talk through your options.

Popular Missouri cities
Kansas CitySt. LouisSpringfieldColumbiaIndependenceLee's SummitO'FallonSt. Joseph
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Typical Missouri pricing

What it costs across Missouri

AC Repair

$125 – $1.3k+

AC repair cost depends on the failing part and whether the system is low on refrigerant, electrical, or mechanical. Common fixes — capacitors, contactors, fan motors, refrigerant recharges — land between $150 and $1,500 including labor, while a failed compressor runs higher.

See Kansas City pricing →

Furnace Repair

$125 – $1.6k+

Furnace repair cost depends on the failing part and whether the unit is gas or electric. Common fixes — flame sensors, igniters, blower motors, control boards — land between $150 and $1,800 including labor, while a cracked heat exchanger runs higher.

See Kansas City pricing →

AC Installation

$3k – $7.8k+

AC installation cost covers the equipment and labor to fit a new system — whether it's a like-for-like central AC replacement, a first-time install with new ductwork, or a ductless mini-split. The number swings with tonnage, SEER2 efficiency tier, and duct condition.

See Kansas City pricing →

AC Maintenance

$65 – $175

AC maintenance — a seasonal tune-up — keeps the system running efficiently and catches small faults before they become summer breakdowns. A single visit runs $75–$200; annual plans that bundle a spring AC and fall heating check cost a bit more.

See Kansas City pricing →

* Statewide medians — open a city for locally adjusted pricing.

Local guide · Missouri

What’s different about Missouri.

Generic cost pages skip the things that actually decide your price and which system fits here — local code, climate, and the money you can claim back.

Recommended unit for Missouri

High-SEER2 AC + gas furnace

Given Missouri’s mixed-humid climate and gas heating, high-seer2 ac + gas furnace is the sensible default for most Missouri homes. A pro can confirm the right size and system for your home with a load calculation.

Sources: Ameren Missouri Heating and Cooling / HVAC rebates · SEER2 North Region efficiency standards

What Missouri code requires

Across Missouri, installing or replacing an HVAC system means meeting these statewide rules under the state mechanical code:

  • Permit

    Mechanical permit pulled by your licensed HVAC contractor; covers equipment, refrigerant, and the electrical disconnect.

    Required
  • SEER2 minimum

    Federal North-region minimum for new split-system AC. Higher tiers cut bills and unlock rebates.

    13.4 SEER2 (North)
  • Load calculation

    Sizing by load calc — not rule of thumb — prevents an oversized unit that short-cycles and never dehumidifies.

    Recommended
  • Refrigerant
    R-454B / R-32 (R-410A phased down 2025+)
  • Good to know

    Missouri has no statewide residential building/mechanical code, so permit and inspection requirements are set locally by each city or county.

    —

Sources: Ameren Missouri Heating and Cooling / HVAC rebates · SEER2 North Region efficiency standards

Talk to a local pro

Not sure which rules and rebates apply to your home?

A licensed Missouri pro will walk you through code, the right unit, and what you can claim back — in one quick call.

Call now: (855) 321-3116

No obligation — talk through your options.

Money back in Missouri

Missouri heating is mostly gas, which shapes the money back:

The federal 25C tax credit (30%, up to $2,000 for a qualifying heat pump and up to $600 for a high-efficiency central AC) applies in every state, including Missouri.

Talk to a local pro

Ready to get your HVAC system serviced in Missouri?

Speak with a licensed, insured HVAC technician near you. Upfront pricing, same-day availability, no obligation.

  • Licensed & insured
  • Same-day availability
  • Upfront, no-pressure pricing
  • Local pros near you
Call now: (855) 321-3116

No obligation — talk through your options.

Licensed technician servicing an HVAC system
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All 87 Missouri cities

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87 cities

How it works

Comfort back in three steps.

  1. 1

    Tell us what’s wrong

    Use the cost tool or call — takes 30 seconds. No cool air, no heat, or time for a new system.

  2. 2

    Get matched with a local pro

    We connect you with a licensed, insured HVAC technician near you — often the same day.

  3. 3

    Repair or replace, fast

    Your pro confirms the price on-site and gets your comfort back. Most jobs done in a few hours.

FAQ

HVAC FAQs — Missouri

In Missouri, a mechanical permit is generally required for an AC or heat pump install. Your licensed HVAC contractor pulls it; it covers the equipment, refrigerant, and electrical disconnect.

Get an HVAC quote in Missouri.

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