Repair
- The system is otherwise sound
- The repair is limited and clearly diagnosed
- Expected remaining life supports the repair cost
Compare system age, repair cost, reliability, comfort problems and remaining ownership cost before approving major HVAC work.
| Decision | Repair | Replace |
|---|---|---|
| First cost | Usually lower | Usually higher |
| Best evidence | Written diagnosis and repair scope | Load calculation and complete replacement scope |
| Reliability question | Condition of the rest of the system | Installation quality and warranty coverage |
| Efficiency impact | Usually limited | Can improve when correctly sized and commissioned |
| Quote focus | Failed part, labor and recurrence risk | Equipment, ducts, electrical, permits and commissioning |
No. Equipment, existing infrastructure, local labor, permits, financing and operating cost must be compared with the same home assumptions.
Give bidders the same home data and require itemized equipment, labor, electrical or fuel work, permits, commissioning, exclusions and warranties.
Use identical home, comfort and cost assumptions for both routes.