AC Installation Cost
Install a new central air conditioning system or replace an existing unit.
National Average
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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Before hiring (or DIYing), make sure you have the right tools to verify quality work.
HVAC Digital Manifold Gauge
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AC Fin Comb
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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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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.