How Long Does AC Installation Take? Timeline From Estimate to Cold Air
A typical central AC installation in the Greater Savannah area takes 4-8 hours for a straightforward replacement of an existing system, with the full process from initial estimate to cold air flowing usually spanning 1-2 weeks including consultation, permitting, scheduling, and any follow-up testing.
Bottom line: Expect the on-site installation day to last half to one full day (4-8 hours for most residential jobs), but the complete timeline from first contact to fully operational cooling averages 7-14 days, longer during peak summer demand when scheduling and parts availability extend waits in humid Georgia conditions.
The process begins with an in-home consultation where a technician assesses your current setup, performs a load calculation to size the new unit properly for Pooler’s heat and humidity, and provides options. This step accounts for 1-3 days of research and multiple quotes if comparing providers. Once you select a system, permitting (required in Chatham County for most replacements) adds 2-7 days depending on local backlog.
From Initial Estimate to Scheduling
The journey starts with your call or online inquiry—reputable companies respond within hours and schedule a free in-home estimate within 1-3 days. The estimator evaluates home size, insulation, duct condition, electrical capacity, and existing ductwork to recommend the right tonnage (typically 3-5 tons for average Savannah-area homes) and efficiency level (SEER ratings 14-20+ for Georgia rebates).
Multiple quotes help compare transparent pricing; expect this phase to take 3-7 days total as you review proposals. Financing approval, if needed, can add a day or two but streamlines payment for many homeowners.
Permitting and Preparation Phase
Permits ensure compliance with Georgia building codes and local Savannah/Pooler requirements—filed by the installer, this typically takes 3-10 days for approval. During this window, order the new equipment; lead times for popular brands range from same-week to 2 weeks in busy seasons.
Prepare your home: clear access to the indoor air handler (often attic or closet) and outdoor unit location, move pets or valuables, and arrange parking for the crew’s truck and trailer.
The Installation Day: Step-by-Step Breakdown
Most replacements complete in one day, starting early morning.
Technicians arrive, confirm the plan, and shut down power to the old system. They recover any remaining refrigerant properly (EPA-required), disconnect and remove the old condenser, evaporator coil, and lineset if needed.
The new outdoor condenser installs on a level pad with proper clearance—2 feet around for airflow in humid, debris-prone areas. Indoor components (evaporator coil in the plenum, air handler connections) fit into existing space or require minor modifications.
New refrigerant lines run (or existing flushed/reused), electrical wiring connects, and the system evacuates to remove air/moisture before charging with R-410A or newer refrigerant.
Duct connections seal, thermostat wires hook up, and the crew tests startup: checking pressures, amp draws, temperature drop (15-20°F ideal), and airflow.
Cleanup follows: old unit removal, debris haul-away, and final walkthrough explaining operation and warranty.
Complex jobs—new duct modifications, electrical upgrades, or attic access challenges in historic Savannah homes—extend to 1-2 days.

Post-Installation and Final Cold Air
After installation, run the system 24-48 hours to settle refrigerant and confirm performance. Technicians often return for a follow-up check within a week, verifying no leaks and optimal operation.
In Greater Savannah’s climate, proper sizing and installation prevent short-cycling or humidity issues that spike bills. Full commissioning ensures the system handles 95°F+ days with 80% humidity effectively.
Carriage Heating & Cooling manages the entire timeline efficiently with Housecall Pro scheduling, clear communication, and licensed technicians experienced in local conditions for smooth transitions to reliable cooling.




