A new gas furnace installed in the Portland, OR area typically runs about $4,500 to $9,500, depending on the furnace size, efficiency rating (AFUE), and whether venting, gas line, or ductwork changes are needed. High-efficiency condensing furnaces (95 percent AFUE and up) cost more upfront but cut your winter gas bills. Here is what drives the price in Portland, and what Forest Fresh Heating & Cooling charges.
Forest Fresh Heating & Cooling installs and replaces gas furnaces across the Portland metro with upfront fixed pricing and a free in-home assessment.
Free furnace replacement quotes in Portland. Call 503-941-6416 or request a free in-home estimate.
How much does a gas furnace cost in Portland?
Price depends on heating capacity (BTUs), efficiency tier, and the condition of your venting and ductwork. A like-for-like replacement on an existing system is the most affordable; upgrading to a high-efficiency condensing furnace, or correcting old venting and gas lines, adds to the cost but pays back in lower bills and reliability.
What furnace efficiency is worth it in Oregon?
For most Portland homes a 95 to 97 percent AFUE furnace hits the sweet spot of upfront cost versus winter savings. We size the unit to your home with a load calculation so you are not paying for capacity you do not need.
Do I need a permit to replace a furnace in Oregon?
Yes. Mechanical, and often gas and electrical permits, are required. Forest Fresh pulls the permits and schedules inspection as part of the install.
How long does furnace installation take?
A straightforward furnace replacement is usually a one-day job. Adding venting, gas line, or ductwork can extend it. We give you the timeline before we begin.
Why Forest Fresh Heating & Cooling
- Licensed, bonded, and insured Oregon HVAC contractor
- Upfront fixed pricing and free estimates
- Financing on new systems
- Fast local Portland scheduling
Frequently asked questions
Should I repair or replace my furnace?
If your furnace is over 15 years old, needs a repair that costs more than a third of a new unit, or has a cracked heat exchanger, replacement is usually the smarter choice. We give you an honest recommendation, not a sales pitch.
Can you install a high-efficiency furnace in an older Portland home?
Yes. Older homes sometimes need venting or gas-line updates for a condensing furnace, which we handle as part of the project and quote upfront.
How long does a gas furnace last?
A well-maintained gas furnace typically lasts 15 to 20 years. Annual tune-ups and filter changes protect both its lifespan and your safety.
Do you offer financing on a new furnace?
Yes, financing is available on new system installations so you can spread the cost over time.
Ready for a quote? Call 503-941-6416 or request a free in-home estimate.