New Air Conditioners

A new central air conditioner typically costs $5,500 to $12,000 installed in 2026, depending on system size, efficiency rating (SEER2), and home configuration. High-efficiency variable-speed systems range from $10,000 to $18,000 installed. Ductless mini split systems start around $4,500 for single-zone installations and reach $15,000+ for multi-zone whole-home setups.

Final pricing depends on tonnage (typically 1.5 to 5 tons for residential homes), SEER2 rating, brand, ductwork condition, electrical service capacity, and any required permits. Eco Temp HVAC provides written upfront estimates with multiple options at different price points so you can compare without surprises.

New air conditioners manufactured after January 1, 2025 use R-454B refrigerant (or in some cases R-32) instead of the previous R-410A, which is being phased out under EPA rules to reduce global-warming-potential emissions. R-454B has roughly 78% lower global warming potential than R-410A while delivering similar cooling performance and efficiency.

If you have an existing R-410A system, it can still be repaired and refilled with R-410A through the system's lifetime, but new equipment installed in 2026 will use R-454B. The two refrigerants are not interchangeable — they require different equipment, components, and service procedures. Our EPA 608-certified technicians are trained on both refrigerants.

Combined furnace and air conditioner replacement in 2026 typically costs $10,000 to $18,000 installed for standard-efficiency equipment, and $15,000 to $28,000 for premium high-efficiency systems with variable-speed components. Replacing both at the same time usually saves 10-15% compared to separate installations because the labor, permits, and refrigerant line work overlap.

For Chicago-area homes, the dual installation also unlocks bundled rebates from ComEd and Nicor Gas plus federal Inflation Reduction Act tax credits when both systems meet efficiency thresholds.

Air conditioner sizing is measured in tons — one ton equals 12,000 BTU of cooling capacity. As a rough guide, homes typically need 20-25 BTU per square foot, so a 2,000 sq ft home generally needs a 3-4 ton system. However, accurate sizing requires a Manual J load calculation that accounts for your home's insulation, windows, orientation, ductwork condition, and Chicago-area climate data.

Oversized systems short-cycle, fail to dehumidify properly, and wear out compressors early. Undersized systems run constantly and never reach setpoint during heat waves. Eco Temp HVAC performs full Manual J calculations on every installation — we don't size based on your old equipment's tonnage.

SEER2 (Seasonal Energy Efficiency Ratio 2) measures cooling efficiency under the updated testing standard implemented in 2023. For Chicago-area homes, the federal minimum is 14.3 SEER2. Most homeowners choose between three tiers:

• Standard (14.3-15 SEER2): Lowest upfront cost, meets federal minimum
• Mid-efficiency (16-18 SEER2): Best value for most homes — 15-25% lower operating cost than minimum, often qualifies for utility rebates
• High-efficiency (18+ SEER2): Variable-speed and two-stage systems, lowest operating cost, quietest operation, qualifies for the largest federal tax credits

The right SEER2 depends on how long you plan to stay in the home, your typical electric bill, and whether you value upfront savings or long-term operating cost reduction.

A new air conditioner is not a standard tax deduction, but qualifying high-efficiency central air conditioners (typically 16+ SEER2) and heat pumps can qualify for the federal Energy Efficient Home Improvement Credit under the Inflation Reduction Act. In 2026, this credit can be worth up to $600 for a qualifying central air conditioner and up to $2,000 for a qualifying heat pump.

Chicago-area homeowners may also qualify for ComEd rebates, Nicor Gas rebates on dual-fuel systems, and Illinois Home Energy Rebate Programs for income-qualifying households. We track current incentives in our HVAC Rebate Center and walk every customer through their specific eligibility during the in-home estimate. Always consult your tax advisor regarding eligibility for any federal credit.

A standard residential air conditioner replacement typically takes 4 to 8 hours on installation day. Full system replacements that include furnace and AC together, electrical upgrades, or ductwork modifications generally take 1 to 2 days.

From signed contract to operational system, the full timeline is usually 1 to 3 weeks — including permit approval (5 to 10 business days in Cook County), equipment delivery, and scheduling. We can expedite emergency replacements when an existing system has completely failed during summer heat.

A properly installed and maintained central air conditioner typically lasts 12 to 17 years in the Chicago climate. Variable factors include installation quality, sizing accuracy, annual maintenance, refrigerant integrity, and how heavily the system is used during summer.

Signs that point toward replacement rather than repair include: the system is over 12 years old, repair costs exceed 50% of replacement cost, the unit uses phased-out R-22 refrigerant, your electric bills have climbed significantly without explanation, or the system can't maintain set temperature during heat waves. Our technicians provide an honest repair-vs-replacement analysis with written cost comparisons before recommending a new system.

Eco Temp HVAC installs every major air conditioner brand including Trane, Bryant, Carrier, Lennox, American Standard, Amana, Rheem, Ruud, Goodman, Payne, and York, plus ductless systems from Mitsubishi Electric and Daikin. We recommend the brand and model that fits your home, budget, and performance goals rather than locking you into one manufacturer line.

Premium tier choices include Trane XV20i and Carrier Infinity variable-speed systems. Strong mid-tier options include Bryant Evolution, Lennox Elite, and American Standard Platinum. Solid value-tier choices include Rheem, Goodman, and Amana. We compare 2-3 options at different price/performance levels during your in-home estimate.

Yes. Eco Temp HVAC offers flexible financing on approved credit including 0% interest promotional plans on qualifying systems, designed to make new air conditioner installations more affordable for Chicago-area homeowners. Financing can be combined with available rebates and federal tax credits to reduce the upfront cost while spreading payments over time.

Many homeowners use financing for combined furnace and air conditioner replacements where the upfront cost would otherwise be prohibitive. Ask your comfort specialist during the in-home estimate to review current financing options, or call (224) 253-8131.