AC Installation in Rockford, IL: Professional Cooling Systems Installed Right Since 1985

Complete AC installation in Rockford typically costs $4,000-$8,000 depending on system type and complexity. Central air systems range $4,000-$8,000, ductless mini-splits cost $3,500-$12,000 depending on zones, and heat pumps run $5,500-$10,000. High-efficiency systems qualify for rebates that reduce your net cost. We provide free estimates with multiple options at different price points, plus help you access all available incentives.

Most AC installations take 8-12 hours and are completed in a single day when ductwork exists. Installation extends to 2-4 days if you need complete ductwork installation for homes without existing HVAC (adding 1-3 days), electrical service upgrades for 200-amp panel capacity (adding 4-6 hours), or multiple zones for ductless mini-split systems (adding 2-3 hours per zone). We provide an accurate timeline after assessing your specific situation during the free consultation.

AC size depends on square footage, insulation quality, window count and orientation, ceiling height, and home layout. We perform Manual J load calculations to size your system correctly—not rough square footage estimates. General guidelines: 1,000-1,400 sq ft needs 2-2.5 ton; 1,800-2,400 sq ft needs 3-4 ton; 2,400-3,000 sq ft needs 4-5 ton. Proper sizing prevents short-cycling, ensures dehumidification, and maximizes efficiency.

Choose central air if you have existing ductwork or can install ducts, want whole-home cooling with one thermostat, and prefer the lowest cost per ton of cooling capacity ($4,000-$8,000). Choose ductless mini-split if you're cooling a home addition or specific rooms, have an older home where ductwork installation is impractical, want individual room temperature control, or need superior energy efficiency with no duct losses ($3,500-$12,000 depending on zones). We'll assess your specific situation and recommend the best option.

New AC systems range from 14-26 SEER compared to 8-10 SEER for systems installed before 2006. A 16 SEER system uses 40-50% less electricity than older 10 SEER models, saving $200-$400 annually on cooling costs. High-efficiency 18+ SEER systems with variable-speed technology provide even greater savings, better dehumidification during humid Rockford summers, and quieter operation. Most homeowners choose 16 SEER for the best balance of efficiency and value.

Yes, complete old system removal and proper disposal is included in our installation service at no additional charge. We remove both outdoor condensing units and indoor evaporator coils, cap refrigerant lines properly, haul away all old equipment, and ensure your property is left clean. We handle all EPA-required refrigerant recovery following environmental regulations.

We're factory-certified dealers for all major brands including Carrier, Trane, Lennox, Bryant, Rheem, and Goodman. We recommend Carrier and Bryant for most Rockford homeowners as they offer excellent balance of efficiency, reliability, and warranty coverage for Northern Illinois humid summers. Trane and Lennox provide premium features and highest efficiency options. Goodman works well for budget-conscious buyers needing dependable cooling at lower upfront cost.

Yes, AC installation in Rockford requires a building permit to ensure code compliance and safety. Gilley's handles all permit applications, inspections, and paperwork as part of our complete installation service. This protects you by ensuring your new system meets all local codes, maintains your homeowner's insurance coverage, and doesn't create issues when selling your home.