HVAC Failed Inspection — What Now

The inspector flagged your HVAC system. Here's what that actually means for your purchase — and your wallet.

What 'Failed' Actually Means

Inspectors don't pass or fail HVAC systems — they note deficiencies. Common flags include age (15+ years), unusual noises, temperature differentials, and visible wear. A 'flag' doesn't necessarily mean replacement. It means further evaluation is needed.

Common HVAC Inspection Findings

Understanding what the inspector found helps you assess urgency and cost.

  • System age 15+ years: Average HVAC lifespan: 15–20 years. At 15+, plan for replacement within 3–5 years. Budget: $5,000–$12,000
  • Refrigerant leak: Older R-22 systems can't be recharged (banned). May force early replacement. $3,500–$8,000
  • Cracked heat exchanger: Carbon monoxide risk. Furnace replacement usually needed. $2,500–$6,000
  • Inadequate sizing: System too small/large for the home. Causes efficiency issues and uneven temps. Replacement recommended
  • Ductwork issues: Leaking, disconnected, or poorly insulated ducts. Repair: $500–$2,000. Replacement: $3,000–$7,000

Negotiation Strategy for HVAC Issues

HVAC issues are strong negotiation items because they're expensive and essential. Request a credit equal to 50–75% of replacement cost. Get two contractor estimates and present them with your repair request. Most sellers will negotiate on HVAC because they know the next buyer will ask the same question.

The Smart Decision Framework

If the system is 15+ years old AND has issues: negotiate full replacement credit. If the system is 10–15 years and working: budget for replacement in 3–5 years, don't kill the deal. If the system is under 10 years with minor issues: request repair credit ($500–$1,500) and move forward.

Cost range

HVAC repair to replacement range: $500–$12,000

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