AC Installation in Hazelwood
Get fast, fair pricing from licensed local pros. Typical Hazelwood cost: $3.4k – $6.9k+ installed.
- Central AC (replace)
- $3.4k – $6.9k+
- New central AC + ducts
- $5.2k – $11k+
- Ductless mini-split
- $2.6k – $6.9k
- Permit & inspection
- $65 – $350
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AC installation cost by system.
Installed pricing for Hazelwood, adjusted for local labor. Higher SEER2 tiers, larger tonnage, and new ductwork add to the base.
In Hazelwood, Missouri, AC installation costs typically range from $3,400 to $6,900 for a like-for-like central AC replacement, and $5,200 to $11,200+ if new ductwork is needed. Ductless mini-splits run $2,600–$6,900, while heat pumps cost $4,300–$10,300+. With a median home age of 57 years, many homes lack modern ductwork or have older systems that may require upgrades. Hazelwood’s mixed-humid climate and moderate cooling demand make an AC-gas furnace combination a practical choice for efficiency and comfort. Missouri has no statewide mechanical code, so permits and inspections are handled locally—always confirm requirements with the city before starting work.
- Central AC, like-for-likeExisting ducts in good shape$3,400 – $6,900+
- New central AC + ductworkFirst-time or full duct replacement$5,200 – $11,000+
- Ductless mini-splitSingle or multi-zone, no ducts$2,600 – $6,900
- Heat pump (cooling + heating)Qualifies for federal & local rebates$4,300 – $10,500+
- Permit & inspectionRequired in most jurisdictions$65 – $350
* High-efficiency systems cost more upfront but may qualify for federal tax credits and utility rebates.
Pricing reviewed · Local data from U.S. Census ACS
HVAC systems in Hazelwood
U.S. Census ACS- Households
- 10,138
- Homeowners
- 6,682
- 53% own
- Median home value
- $150,000
- Median income
- $55,111
- Median home built
- 1969
- Housing units
- 12,549
With a median home built in 1969, many Hazelwood AC and furnace systems are at or past their 12–15 year lifespan — a common reason replacements spike here.
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What’s different about Hazelwood.
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 Hazelwood
Given Missouri’s mixed-humid climate and gas heating, high-seer2 ac + gas furnace is the sensible default for most Hazelwood 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 Hazelwood code requires
Installing or replacing an HVAC system in Hazelwood follows Missouri rules under the state mechanical code. Here’s what applies statewide:
- PermitRequired
Mechanical permit pulled by your licensed HVAC contractor; covers equipment, refrigerant, and the electrical disconnect.
- SEER2 minimum13.4 SEER2 (North)
Federal North-region minimum for new split-system AC. Higher tiers cut bills and unlock rebates.
- Load calculationRecommended
Sizing by load calc — not rule of thumb — prevents an oversized unit that short-cycles and never dehumidifies.
- RefrigerantR-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
Not sure which rules and rebates apply to your home?
A licensed Hazelwood pro will walk you through code, the right unit, and what you can claim back — in one quick call.
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Money back in Hazelwood
Missouri heating is mostly gas, which shapes the money back:
- StateUp to $2,000 per qualifying air-source heat pump (up to $1,000 central AC, up to $500/ton mini-split)Ameren Missouri PAYS (Pay As You Save) air-source heat pump rebate →
State or utility program — verify eligibility before you buy.
- Federal30% of cost, up to $2,000Federal 25C tax credit — heat pump →
For a qualifying ENERGY STAR heat pump meeting the CEE efficiency tier. Claimed on your federal return.
- Federal30% of cost, up to $600Federal 25C tax credit — central AC →
For a qualifying high-efficiency central air conditioner.
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.
Comfort back in three steps.
- 1
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- 2
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- 3
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Your pro confirms the price on-site and gets your comfort back. Most jobs done in a few hours.
AC Installation in Hazelwood, explained.
What Affects AC Installation Costs in Hazelwood?
The age of your home (median built 1969) often means older ductwork that may need repairs or replacement, adding $2,000–$5,000+. System choice matters: a heat pump costs more upfront than a central AC but qualifies for federal tax credits (up to $2,000). Labor rates reflect local market conditions, and permits (required by Hazelwood) add a small fee. Efficiency upgrades, like a SEER2 13.4+ unit, can increase cost but lower long-term energy bills. Rebates like the 25C tax credit (30% up to $600 for central AC) can offset some expenses.
Common AC Installation Issues in Hazelwood
Outdated Ductwork
Homes built in the 1960s–70s often have undersized or leaky ducts that require replacement or sealing, increasing project cost.
Permit and Inspection Confusion
Missouri lacks a statewide code, so Hazelwood sets its own permit rules—homeowners must verify requirements to avoid fines.
Refrigerant Transition
R-410A is being phased out; new systems use R-454B or R-32, which may affect equipment availability and pricing.
AC Installation FAQs — Hazelwood
Yes, a mechanical permit is required by the city. Check with Hazelwood’s building department for specific fees and inspection steps.
AC Installation near Hazelwood
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