Heating and cooling
Central AC installation: what it costs in Massachusetts
How this range is built
| Part of the job | Low | High |
|---|---|---|
| Parts and materials | $3,800 | $8,500 |
| Labor: 14 to 28 hours × $100 to $140 an hour | $1,400 | $3,920 |
| Fees: disposal, permits, supplies | $150 | $700 |
| Total, rounded | $5,300 | $13,200 |
The hourly rate is the BLS Occupational Employment and Wage Statistics, May 2025 average pay for this trade in Boston, $38.41 an hour, times 2.6 to 3.6 to cover what a contractor bills (overhead, tools, insurance, profit). Materials are a band from basic to high-end. Full method.
Not a repair shop, estimates only. Typical range, estimate. Not a quote. Your home, materials and contractor change the number.
Install an outdoor condenser and indoor coil on an existing duct system. For homes with forced-air heat that have no central cooling.
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What is usually included
- Outdoor condenser and indoor coil
- Refrigerant lines and electrical disconnect
- Condensate drain line
- Concrete or composite pad
- Startup and charge check
What moves the price
- Tonnage and SEER2 rating
- Ductwork that is too small or leaky
- Line set length and electrical panel capacity
- Whether a new air handler is needed
Questions to ask before you say yes
- Was a load calculation done, or is it a guess by square feet?
- Are my ducts big enough for central AC?
- Is the electrical work and permit included?
- What is the warranty on the compressor?
Can you do it yourself?
Not a DIY. Refrigerant handling needs EPA certification, and electrical and line work need a licensed pro.
Common questions
What size AC does my house need?
It depends on insulation, windows and layout, not only square feet. A proper load calculation avoids an oversized unit.
Can I add AC to a house with baseboard heat?
Not with central AC, since there are no ducts. Mini-splits or ducted systems with new ductwork are the usual options.
Do rebates exist?
Mass Save and federal credits sometimes cover high-efficiency units. Ask your installer to check current programs.
How much does central ac installation cost in Massachusetts?
A typical range is $5,300 to $13,200. It is an estimate built from labor wages and material prices, not a quote.
Typical range in 10 metro areas
Only the labor rate changes between cities. Same parts, same hours.
| Area | Typical range, estimate |
|---|---|
| Boston area, Massachusetts | $5,300 to $13,200 |
| New York City area | $5,300 to $13,200 |
| Los Angeles area, California | $5,200 to $12,900 |
| Chicago area, Illinois | $5,300 to $13,000 |
| Houston area, Texas | $5,000 to $12,200 |
| Dallas-Fort Worth area, Texas | $5,000 to $12,200 |
| Phoenix area, Arizona | $5,000 to $12,300 |
| Atlanta area, Georgia | $5,000 to $12,200 |
| Miami area, Florida | $5,000 to $12,200 |
| Seattle area, Washington | $5,400 to $13,400 |