Average AC Unit Installation Cost in Maryland
$6,325
Low End
$4,323
Average
$6,325
High End
$9,022
Want a more precise estimate?
Use our free HVAC calculatorHere's how ac unit installation costs typically break down in Maryland:
AC Unit Installation in Maryland is 13% above the national average of $5,593. This is primarily due to higher labor costs and stronger demand in Maryland.
Maryland experiences a humid subtropical climate in the Chesapeake and Coastal Plain, shifting to humid continental in the western Appalachian counties. Construction is effectively year-round in the Baltimore-Washington corridor, while Garrett and Allegany counties see a shorter shoulder season and higher snow loads. Tidal flood-zone requirements are significant along the bay. For ac unit installation projects specifically, this means timing and material selection are key factors in both cost and quality.
Maryland's costs are close to the national average, reflecting a balanced supply-demand dynamic in the local construction market.
Maryland requires Home Improvement Commission (MHIC) licensing for any work over $500, verify at labor.maryland.gov before signing a contract
BGE, Pepco, and Delmarva Power run EmPOWER Maryland rebates that remain active for 2026, covering heat pumps, insulation, and smart thermostats
Chesapeake Bay critical-area rules layer additional restrictions on any project within 1,000 feet of tidal water, confirm jurisdiction early
Prevailing wage requirements and high Baltimore-DC corridor labor rates make Maryland one of the higher-cost Mid-Atlantic markets, budget accordingly
Most ac unit installation projects in Maryland require a building permit, especially if structural changes are involved. Estimated permit cost: $168.
View full permit guide for MarylandShare 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 Maryland typically costs between $4,323 and $9,022, with an average of $6,325 for a typical project in 2026.
Yes, ac unit installation in Maryland is about 13% above the national average due to local labor costs and market conditions.
Permit requirements vary by city and county in Maryland. Most ac unit installation projects that involve structural changes require a building permit. Check our permit guide for Maryland 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 Maryland. 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.