Cost to Replace a Furnace
Replacing a furnace means removing the old unit, positioning a compatible new unit, reconnecting gas and electrical lines, checking the flue and burner-pipe assembly, and testing operation. Homeowners may consider replacement when the existing furnace is worn or damaged or when an upgrade is needed, but gas, high-voltage electrical, and venting work make this a hard project.
Common reasons homeowners do this job
- The existing furnace is worn or damaged.
- A homeowner wants to upgrade the heating equipment.
- Current heating needs have changed.
- A new furnace is needed that fits the existing dimensions and ductwork connections.
- Existing ductwork needs to be assessed for integrity before a replacement is selected.
DIY or call a pro?
A licensed HVAC professional should replace a furnace. The work involves natural gas and high-voltage electrical connections, creating risks of gas leaks, explosions, and electrical shock. Improper venting can also lead to carbon monoxide poisoning.
Frequently asked questions
- Can I replace a furnace myself, or should I hire someone?
- Hire a licensed HVAC professional. Furnace replacement involves gas, electrical, refrigerant, and venting connections that require specialized training and certification, so this project belongs to a licensed professional.
- What makes furnace replacement cost more?
- The price can rise with the job size, labor time, materials, and haul-away or disposal of the old furnace. The price also scales with the number of furnace units being replaced.
- What should be checked before choosing a replacement furnace?
- Start by assessing heating needs and home square footage. The existing furnace dimensions, ductwork connections, and ductwork integrity should also be reviewed so the new unit is compatible with the current infrastructure.
- Why does the flue connection matter during furnace replacement?
- The flue pipe and burner-pipe assembly need careful checking because improper venting can lead to carbon monoxide poisoning. This is one of the critical safety checks a licensed HVAC professional performs before testing the system.
Have a different situation?
Every home is different. Describe yours to Gable Pro and get a diagnosis, a real cost estimate, and — if you want — a match to a vetted local pro.