ComfortCostGuide

State cost guide

Maryland: HVAC Replacement Cost Calculator

Replacing an HVAC system in Maryland typically runs $4,000 to $7,500 for a central air conditioner alone, $3,500 to $7,000 for a gas furnace, and $7,500 to $13,000 when you replace both at once. Heat pumps, which handle both heating and cooling in Maryland's mixed climate zone 4, land between $6,000 and $12,000 installed. Labor here runs about 14% above the national baseline, with HVAC technicians earning an average of $35.49 per hour, so installation time is a meaningful share of your quote.

Worked example

Say you own a 2,100 sq ft two-story house outside Baltimore with a 20-year-old gas furnace and an AC condenser that just failed. Because both pieces are at end of life, most Maryland contractors will quote the matched pair rather than a single component, putting you in the $7,500 to $13,000 range. A mid-efficiency 3-ton system with existing ductwork in decent shape would land near the middle, roughly $9,500 to $10,500; add a difficult attic air handler location, new line set, or a high-efficiency variable-speed model and you move toward the $13,000 end.

Frequently asked questions

Is a heat pump a good choice in Maryland's climate?

Maryland sits in climate zone 4, a mixed climate where winters are cold but not extreme, which is the range modern heat pumps handle well. Expect $6,000 to $12,000 installed for a heat pump that covers both heating and cooling, compared with $7,500 to $13,000 for a separate AC and gas furnace pair.

Why are HVAC installation quotes in Maryland higher than national averages?

Maryland's labor index is 1.14, meaning installation labor costs about 14% more than the national baseline, and HVAC technicians in the state average $35.49 per hour. That difference shows up most on jobs with long install times, such as full system changeouts or ductwork modifications.

How much does it cost to replace just the air conditioner in Maryland?

A standalone central AC replacement in Maryland runs $4,000 to $7,500 installed. Replacing only the AC makes sense when your furnace is relatively new, but if the furnace is also near end of life, the $7,500 to $13,000 combined price often costs less than doing two separate jobs later.

What do ductless mini splits cost in Maryland?

Ductless mini splits in Maryland range from $3,500 to $10,000 installed. The low end reflects a single indoor head for one room or an addition, while multi-zone systems covering several rooms push toward the upper end of the range.

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