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Last updated: 2026-05-01

HVAC

AC Installation Cost

Install a new central air conditioning system or replace an existing unit.

National Average

$5,750 per unit

Typical range: $3,500 – $8,000

Based on national contractor surveys and RS Means data. Updated 2026-05-01.

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What Affects the Cost of AC Installation?

Factor Impact
Unit size (tons) Can affect total by 10-30%
SEER rating Can affect total by 10-30%
Ductwork condition Can affect total by 10-30%
Existing vs new install Can affect total by 10-30%
Brand Can affect total by 10-30%

Project Details

Time to Complete

1-3 days

DIY Possible?

No

Permits Required?

Yes

Why You Shouldn't DIY This

🚫

No — hire a licensed professional.

AC Installation requires specialized skills, tools, and often permits. A botched job can cause water damage, structural issues, or safety hazards — costing far more to fix than doing it right the first time. Most jurisdictions require permits for this work. Get 3 quotes from licensed contractors.

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Verify the Work — Tools Every Homeowner Needs

Before hiring (or DIYing), make sure you have the right tools to verify quality work.

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Cost by City

City Est. Low Est. High Avg
New York, NY $4,725 $10,800 $7,763
Los Angeles, CA $4,550 $10,400 $7,475
Chicago, IL $3,850 $8,800 $6,325
Houston, TX $3,325 $7,600 $5,463
Phoenix, AZ $3,325 $7,600 $5,463

See all 20 cities for complete regional pricing.

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Related Services

Frequently Asked Questions

How much does ac installation cost?

The national average for ac installation is $5,750 per unit, with a typical range of $3,500 to $8,000. Prices vary by city, contractor, and project complexity.

Can I do ac installation myself?

No, this requires professional expertise. Always hire a licensed, insured contractor.

How long does ac installation take?

Typical timeline: 1-3 days. This varies based on project size, weather (for exterior work), and contractor availability.

Disclaimer

Cost estimates are based on national averages and regional cost adjustment factors. Actual prices vary by contractor, scope, and local market conditions. Always get multiple quotes before hiring. Product links are affiliate links — we earn a commission at no cost to you.

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