Converting an evaporative cooler to refrigerated air typically costs $6,000-$15,000 for a whole-home central air system, with an average near $10,000. Home size, existing ductwork, electrical capacity, equipment efficiency, and removal or roof repairs drive the final price.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Central refrigerated air conversion | $6,000 | $10,000 | $15,000 | Typical existing home, complete system |
| Equipment and installation | $4,500 | $8,500 | $13,000 | About 1,500-2,500 sq ft |
| Cooler removal and roof repair | $400 | $1,000 | $2,500 | Depends on roof access and patching |
| Ductless mini-split alternative | $3,000 | $6,500 | $12,000 | One to several indoor zones |
What a whole-home refrigerated air conversion usually costs
For a typical 1,500-2,000-square-foot home with usable ducts, a central split system often totals $6,000-$12,000 installed. A larger home, difficult installation, new ducts, or premium equipment can bring the quote to $15,000-$20,000 or more. In many markets, installed central AC runs roughly $3-$7 per square foot, but that measure is only a rough comparison because equipment sizing and duct condition matter.
A practical budget for a straightforward conversion is about $8,000-$12,000. That estimate assumes standard-efficiency equipment, normal access, and no major electrical or structural work. Homes without suitable ductwork may need a separate duct installation, often adding $2,000-$7,000 or more.
Assumptions: U.S. pricing for a typical existing home, standard installation access, and midrange equipment; local labor and code requirements vary.
How equipment, labor, and removal shape the quote
Conversion bids combine cooling equipment with installation work and any changes needed to make the home operate safely and evenly. The table shows common line-item ranges; some contractors include removal, basic electrical work, or startup in one bundled price.
| Quote component | Low | Typical | High | Pricing basis |
|---|---|---|---|---|
| AC equipment | $2,500 | $4,500 | $7,500 | Condenser, coil, and air handler |
| Installation labor | $1,500 | $3,000 | $5,000 | About $75-$150 per hour |
| Duct changes and sealing | $300 | $1,500 | $5,000 | More for replacement or new runs |
| Cooler removal and disposal | $200 | $600 | $1,200 | Roof or window unit removal |
| Electrical, permit, roof patch | $300 | $1,000 | $3,000 | Scope and local requirements |
Ask whether the quote includes duct sealing, refrigerant lines, permits, startup, and roof or wall repairs. These items can be billed separately or folded into the installation total.
Which home size and duct conditions raise the price?
Cooling capacity is selected by load calculation, not square footage alone. A 1,500-square-foot home may need around 2.5-3.5 tons, while a 2,500-square-foot home might require 4-5 tons; climate, insulation, windows, ceiling height, and air leakage can change those estimates. Oversizing can increase upfront expense and reduce comfort, so a contractor should document the sizing method.
Ductwork built for an evaporative cooler may not be suitable for refrigerated air. Swamp coolers often use open windows or separate room outlets rather than a sealed return-air system. If the home lacks a central return, sealed ducts, or adequate airflow, modifications can add $1,000-$5,000; extensive new ductwork can cost more. Confirm that the existing ducts can handle the required airflow before comparing equipment prices.
How many labor hours does the AC installation take?
A replacement-style installation using suitable ducts may take a two- or three-person crew 1-2 days. A conversion with new refrigerant lines, electrical upgrades, duct modifications, and cooler removal commonly takes 2-4 days. Labor is often $75-$150 per technician-hour, though contractors usually quote a fixed project price rather than hourly billing.
Roof-mounted cooler removal can add time, especially on steep or fragile roofs. If an electrical panel upgrade is required, a separate electrician visit may extend the schedule. Request an itemized scope and expected workdays so a low bid is not simply missing necessary tasks.
What removal, electrical work, and roof patching add
Removing a rooftop evaporative cooler and closing its opening often costs $400-$1,500 when the roof is accessible and repairs are simple. Matching tile, repairing a large opening, or addressing water damage can push roof work to $2,500 or higher. Window-mounted units are usually less expensive to remove, although siding or interior trim may need repair.
Central AC may require a dedicated circuit, disconnect, or panel work. Basic electrical changes can be a few hundred dollars; a panel upgrade may add $1,500-$4,000. Permits commonly cost $100-$500, depending on the jurisdiction and work involved. Have the contractor identify roof and electrical exclusions in writing before signing.
Why refrigerated air prices differ across U.S. regions
Quotes in high-cost metro areas and regions with strong summer demand may run about 10%-25% above national midrange estimates. Lower-cost markets may come in roughly 5%-15% below them, although limited contractor availability can reverse that difference. Hot climates may also require larger equipment or more duct work than a mild-climate home of the same size.
For example, a straightforward $10,000 project might be quoted near $8,500-$9,500 in a lower-cost area and $11,000-$12,500 in a high-cost metro. These are comparison ranges, not guaranteed regional rates. Compare at least three bids with the same equipment capacity, efficiency, and included work.
Central AC or ductless mini-splits for an evaporative cooler home?
Central AC makes sense when existing ducts can be sealed and adapted at reasonable cost. Ductless mini-splits avoid much of the duct expense and can cool selected rooms, typically costing $3,000-$6,000 for one zone and $6,000-$12,000 for multiple zones. A whole-home multi-zone design may exceed those ranges when many indoor heads or long refrigerant runs are needed.
Window units are a lower-cost option for limited rooms, often $250-$900 per unit before installation, but they do not provide the same whole-home integration. Compare total coverage, not just the equipment price: an inexpensive single-zone system may not replace cooling throughout the house.
Where homeowners can trim the conversion budget
Keep usable ducts if an airflow inspection confirms they can be sealed, insulated, and sized properly. Choose standard-efficiency equipment that meets local requirements rather than paying extra for features with little value for the home’s climate or usage. Schedule installation before peak cooling season when contractor calendars may be less crowded, and coordinate roof patching with other planned roof work when practical.
Get bids that separate equipment, labor, duct changes, removal, permits, and repairs. Compare warranties and exact model numbers, and avoid paying to replace sound components without a documented reason. Scope control and apples-to-apples quotes are usually more reliable savings than choosing the lowest equipment price alone.