How Much Does a New Furnace and AC Cost?
A new furnace and AC installed together costs $6,000-$12,000 for standard efficiency and $10,000-$18,000 for high-efficiency systems. Bundling saves $500-$1,500 compared to replacing them separately because the installer only makes one trip and can optimize the system as a matched set. Federal tax credits can reduce the cost by $1,200-$2,000.
THE DETAILS
Replacing both at the same time is usually the best approach if both units are aging. You get a matched system that works together efficiently, one installation visit, and often a better package price.
Standard efficiency combo (80% furnace + 14-16 SEER2 AC): $6,000-$10,000 installed.
High-efficiency combo (96% furnace + 18+ SEER2 AC): $10,000-$15,000 installed.
Heat pump alternative (replaces both furnace and AC with one unit): $4,000-$8,000, with up to $2,000 in federal tax credits. This is increasingly popular in Pittsburgh.
The best time to replace both is late winter or spring when HVAC companies are less busy and more willing to offer package deals.
🔧 WHEN TO CALL A PRO
Get 2-3 quotes that include both units as a package. Ask each company about matched systems, warranty terms, and whether they handle permits and inspections.