When to Replace Your AC: Repair vs Replace Guide

Not every AC problem requires full replacement. Learn when repair makes sense and when it's time for a new system.

Beware the "Replacement" Scam

Dishonest contractors often push full system replacement for simple repairs. A $300 capacitor problem becomes a "$7,000 replacement" quote. Always get 2-3 opinions before replacing.

The Simple Math: Repair vs Replace

Repair If:

System is under 10 years old
Repair cost is under $1,000
System has been reliable (few past repairs)
Repair is still under warranty

Replace If:

System is 15+ years old
Repair cost exceeds 50% of replacement
Multiple major repairs in past 2 years
Energy bills increasing significantly

Fair Replacement Costs 2026

System Size	Budget (14 SEER)	Mid-Range (16 SEER)	High-Efficiency (18+ SEER)
2-2.5 Ton (1,000-1,500 sq ft)	$3,500-$4,500	$4,500-$5,500	$5,500-$7,000
3-3.5 Ton (1,500-2,000 sq ft)	$4,000-$5,000	$5,000-$6,500	$6,500-$8,500
4-5 Ton (2,000-3,000 sq ft)	$5,000-$6,500	$6,500-$8,500	$8,500-$11,000

Note: Prices include equipment and installation. Complex installs (2-story, difficult access) add $500-1,500.

Red Flags for Replacement Quotes

• Quote over $10,000 for standard residential system
• Pressure to decide "today" for special pricing
• Won't provide itemized breakdown
• Claims your repairable unit "must" be replaced
• Uses scare tactics about refrigerant phase-outs