Age alone does not determine whether an air conditioner should be replaced. The better question is whether the system is still delivering reliable comfort at a reasonable total cost.
1. Repairs are becoming frequent
Repeated failures can signal that several components are reaching the end of their useful life.
2. The system struggles to maintain temperature
Long run times, hot rooms or large temperature differences can justify a deeper evaluation.
3. Noise or cycling has changed
New sounds, frequent starts and stops or unusual vibration are worth having inspected.
4. Energy use is trending up
Compare similar months when possible. A meaningful increase may have several causes, so ask a technician to evaluate the whole system.
5. A major repair is needed
When a costly component fails on an older system, ask for both a repair quote and a replacement quote so you can compare the paths side by side.
Before you decide
Keep copies of estimates, contracts, warranties and important communications. For regulated services or high-value projects, independently verify credentials or requirements that apply in your location.