Furnace Repair vs Replacement Cost in Portland (2026)
HVAC6 min readLast updated: October 5, 2026
Quick answer
The average Portland furnace repair costs about $325–$369 (most $142–$597), while a full furnace replacement typically runs $4,350–$7,750.
A broken furnace in a Portland winter forces a quick decision: repair it or replace it? 2026 guides put the average Portland furnace repair around $325–$369, while a full replacement typically runs $4,350–$7,750. Here's how to compare.
Planning more work? Read our Portland plumbing cost guide, our best plumbers guide, our water heater cost guide, our emergency plumber guide, our HVAC cost guide, our sewer line cost guide, our drain cleaning cost guide, our AC installation cost guide, our how to hire a plumber checklist, our mini-split cost guide, our heat pump cost guide, our repipe cost guide, our HVAC tune-up cost guide, and see our how to hire an HVAC contractor checklist.
Furnace repair costs by part
| Repair | Typical Portland range |
|---|---|
| Diagnostic visit | $80 – $225 |
| Ignitor / flame sensor | $140 – $375 |
| Pressure or limit switch | $190 – $475 |
| Control board | $425 – $975 |
| Inducer or blower motor | $375 – $1,200 |
Source: CoolHeat Costs, Portland (2026).
Angi puts most Portland furnace repairs between $142 and $597, with an average of $369.
When replacement makes more sense
A full furnace replacement in Portland typically runs $4,350 – $7,750 (Costadia, 2026).
- A cracked heat exchanger usually ends the debate in favor of replacement.
- Frequent repairs on an older system add up quickly.
- Older parts can be harder to find, which raises repair costs.
- If you're replacing anyway, compare a heat pump — see our heat pump guide.
People also ask
Q:How much is a furnace diagnostic in Portland?
About $80–$225 for a diagnostic visit.
Q:What's the most expensive furnace repair?
Inducer or blower motors ($375–$1,200) and control boards ($425–$975). A cracked heat exchanger usually means replacement.
Q:How much does a new furnace cost in Portland?
About $4,350–$7,750 installed.
Q:Should I repair or replace?
Repair small failures like an ignitor. Consider replacing after a cracked heat exchanger or repeated repairs on an older system.
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