How long does AC installation take?

What determines the installation timeline

Every home is different, so installers size up several factors: whether existing ductwork and refrigerant lines can be reused, how accessible the attic, basement, or crawlspace is, whether the electrical panel can support the new unit, and how much demolition or carpentry the equipment locations require. Older Philadelphia-area rowhomes with tight mechanical spaces often take longer than suburban homes with open basements, simply because of working room.

Typical day-of-install sequence

• ✓Recover refrigerant from the old system and disconnect power
• ✓Remove the old condenser and indoor coil or air handler
• ✓Set the new outdoor unit, install the coil, and connect refrigerant lines
• ✓Pressure-test, evacuate the lines, and charge the system
• ✓Wire controls and the thermostat, then commission and test in cooling mode
• ✓Walk the homeowner through operation, filters, and maintenance

How homeowners can help it go smoothly

Clear a path to the indoor equipment, move stored items away from the work area, and keep pets in another room. Decide on thermostat preferences ahead of time. If you have questions about equipment placement or noise, raise them during the estimate rather than mid-install, when changes are harder to make.

Getting a firm answer for your home

The only reliable timeline comes from an on-site evaluation, where a technician measures the home, inspects ductwork and electrical capacity, and recommends properly sized equipment from Lennox, Carrier, Trane, Goodman, or another major brand. PJ MAC HVAC offers free installation estimates and is available 24/7 whenever cooling questions or breakdowns come up.