Average AC Unit Installation Cost in Mississippi
$5,169
Low End
$3,212
Average
$5,169
High End
$7,311
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Use our free HVAC calculatorHere's how ac unit installation costs typically break down in Mississippi:
AC Unit Installation in Mississippi is 8% below the national average of $5,593. This makes Mississippi one of the more affordable states for ac unit installation.
Mississippi experiences a humid subtropical climate with long, hot, humid summers and short, mild winters. Construction runs year-round, but the Gulf Coast counties of Hancock, Harrison, and Jackson face full hurricane exposure, and expansive Yazoo clay soils across the central and western state drive specialized foundation designs and higher concrete costs. For ac unit installation projects specifically, this means timing and material selection are key factors in both cost and quality.
Less regulatory burden and simpler permitting processes help keep overall project costs down.
Mississippi requires a State Board of Contractors license for residential jobs over $50,000 and Mississippi Home Builders Board registration for smaller residential work
Gulf Coast counties (Hancock, Harrison, Jackson) enforce wind-zone product approvals and flood-elevation rules, verify each product is listed before ordering
Entergy Mississippi and Mississippi Power offer active 2026 rebates for heat pumps, weatherization, and smart thermostats
Yazoo clay across central and western Mississippi is notoriously expansive, insist on deep footings, proper drainage, and root-barrier details to avoid foundation cracking
Most ac unit installation projects in Mississippi require a building permit, especially if structural changes are involved. Estimated permit cost: $131.
View full permit guide for MississippiShare your project once and we'll send it to up to 3 verified ac-installation pros in your area. Free for you, free for them. Never shared with more than 3, and never with anyone we have not verified.
AC Unit Installation in Mississippi typically costs between $3,212 and $7,311, with an average of $5,169 for a typical project in 2026.
No, ac unit installation in Mississippi is about 8% below the national average, making it more affordable than many other states.
Permit requirements vary by city and county in Mississippi. Most ac unit installation projects that involve structural changes require a building permit. Check our permit guide for Mississippi for specific requirements.
A typical ac unit installation project takes 2-7 days depending on the scope, weather conditions, and contractor availability in your area.
Get at least 3 quotes from licensed contractors, consider scheduling during off-peak seasons (fall/winter), ask about financing options, and make sure to compare material options as they significantly affect the total cost.
Cost estimates are based on publicly available data and industry averages for Mississippi. Actual costs vary significantly based on project specifics, contractor pricing, material choices, and local market conditions. These estimates are for informational purposes only. Always get multiple quotes from licensed contractors.