Furnace installation in Portland for homes getting a gas furnace for the first time, adding forced-air heat, or converting from oil or electric heat. Efficiency Heating & Cooling sizes every system with a Manual J load calculation and installs it with NATE-certified technicians.
Most gas furnace installs run $4,495-$9,000, and premium variable-speed systems top out around $12,500. As an Energy Trust of Oregon Trade Ally, we confirm current incentives in your written estimate. Replacing a furnace you already have? See our furnace replacement service.
Furnace installation is different from swapping one furnace for another. On these jobs there is no working gas furnace to copy, so we design the system from scratch. That covers the size, the venting, the gas supply, and the ductwork it will connect to.
We install furnaces across the Portland metro from our offices in Milwaukie, Portland, and Happy Valley. Every install starts with a free in-home estimate and a Manual J load calculation, and every price is in writing before work starts.
Most of our furnace installation work in Portland falls into four groups.
Homes heated by baseboards, wall heaters, or a wood stove that want central forced-air heat. We check whether gas service reaches the house, plan the duct runs, and size the furnace to the load calculation.
Many older Portland homes still have an oil furnace or a buried oil tank. We remove the oil furnace, run gas to the new unit, install proper venting, and connect to the existing ducts when they are in good shape.
An electric furnace makes heat the most expensive way. We replace it with a gas furnace where gas is available, or show you how a heat pump installation compares.
Adding a gas furnace to pair with a heat pump, or adding forced-air heat to a remodel or addition. We size the furnace for the new space and check that the existing ducts can carry the air.
Already have a gas furnace that has worn out? That is a swap-out, and our furnace replacement service for existing gas furnaces covers it.
Gas furnace installs in the Portland metro run $4,495-$9,000. The number depends on the furnace you choose and how much has to be built around it on a new or conversion install.
$4,495-
Standard to high-efficiency gas furnaces, sized by Manual J load calculation, with permits included.
Up to about $12,500
Premium variable-speed systems with the quietest operation and the most even heat.
Quoted in writing
A new gas line installation, new venting, duct changes, or electrical work. All of it is listed in your estimate.
Heat pumps and ductless mini-splits start at $5,995 if you would rather go all-electric. Special financing is available with approved credit, and as an Energy Trust of Oregon Trade Ally we list confirmed incentives in your written estimate.
Oil heat is common in Portland's pre-war neighborhoods, and so are the tanks that fed it. Many sit underground in the side yard or under the driveway. A furnace conversion is the right time to deal with the tank, because once the new gas furnace is running, the tank has no job left.
Tank work is regulated separately from the furnace. Oregon's Department of Environmental Quality says that a homeowner who hires out heating oil tank decommissioning must use a licensed Heating Oil Tank Services Provider. We install the new furnace. The tank itself goes to a licensed tank provider, and we coordinate timing so you are not without heat.
The furnace side has its own details on an oil conversion. The old oil furnace often sits in a tight basement or crawlspace with a masonry chimney flue. A high-efficiency gas furnace vents through PVC pipe instead, which may let us retire the chimney flue for that appliance. If the gas meter is not already at the house, the gas utility has to set one before we can start up the furnace.
We check the existing ductwork during the estimate. Ducts built for an older oil furnace are often undersized or leaky. We test static pressure and tell you whether they can carry the airflow a new furnace needs, or whether some ductwork repair and modification belongs in the job.
Most installs wrap up in one to two days. Conversions with new gas lines or duct changes can take longer, and your estimate says so up front.
We run a Manual J load calculation to pin down the heating capacity your home needs. Square footage, insulation, windows, and air leakage all go into it.
We plan the gas supply, venting route, condensate drain, and duct connections, and we pull the permits.
Our NATE-certified installers set the new furnace to manufacturer specs and Oregon code. Gas piping is pressure tested before start-up.
Combustion analysis, a carbon monoxide check, airflow measurement, and thermostat setup. We don't sign off until everything checks out.
We show you the thermostat and filter schedule, register the manufacturer warranty, and submit Energy Trust paperwork for any confirmed incentive.
A customer of our Portland office hit an unexpected problem partway through an installation. They wrote about how the crew handled it.
"What a great experience with Efficiency. From the estimate process to installation, they made everything seamless and easy. When we hit an unexpected snag during installation, they kept us well informed about what was going on how it might affect the timeline. They got everything done and the system is working great!"
AJ McCafferty, Google review
Installs in older homes do turn up surprises. When one does, we tell you what we found and how it changes the plan before we keep going.
Another Portland office customer has had us install more than one kind of system over the years.
"Great company! We've used them for years. Purchased new furnaces, heat pumps, annual maintenance. Couldn't be happier"
Shanda Bhasker, Google review
Our crews work out of three local offices. See local details for furnace installation in Portland, furnace installation in Milwaukie, and furnace installation in Happy Valley.
Swapping out a worn gas furnace, including removal and haul-away of the old unit.
All-electric heating and cooling, or a dual-fuel pairing with a gas furnace.
New gas lines for first-time furnaces and oil-to-gas conversions.
Efficiency ratings, sizing, and what to compare between quotes.
Guides from our Portland HVAC team
We'll come out, run the load calculation, and give you a written quote with confirmed incentives listed. Gas furnace installs run $4,495-$9,000.
Most gas furnace installs in the Portland metro run $4,495-$9,000, and premium variable-speed systems top out around $12,500. On a first-time install or a conversion, a new gas line, venting, or duct changes can add to the price. Every cost is listed in your written estimate before work starts.
Energy Trust of Oregon offers incentives on qualifying high-efficiency gas furnaces. Its current residential table requires a furnace rated 95% AFUE or higher that is the home's primary heat source. As an Energy Trust Trade Ally, we confirm current offers for your home and list them in your estimate. Eligibility and offers can change. Do not count the federal Energy Efficient Home Improvement Credit toward a new 2026 installation; the IRS lists that credit for qualifying improvements through 2025.
A typical install takes one to two days. First-time installs and oil or electric conversions can take longer when they need a new gas line, new venting, or duct changes. Your estimate gives the expected timeline before work starts.
Sizing depends on square footage, insulation, windows, air leakage, and Portland's climate. Our NATE-certified technicians run a Manual J load calculation to find the heating output your house needs. An oversized furnace short-cycles and wastes energy. An undersized one can't keep up during a cold snap.
Yes. On a first-time install we check whether gas service reaches the house, plan the duct runs, choose a location for the furnace, and plan the venting and condensate drain. If the home needs a gas line or a new meter, we list that work in the estimate and coordinate with the gas utility.
AFUE (Annual Fuel Utilization Efficiency) tells you how much of the fuel becomes heat. An 80% AFUE furnace turns 80 cents of every fuel dollar into heat, and the rest goes up the flue. A 95% AFUE unit converts 95 cents. Furnaces at 90% AFUE and above are condensing units that vent through PVC pipe and need a condensate drain, which affects the install plan.
We do. Special financing is available with approved credit, with convenient monthly payments. We'll identify the current utility and Energy Trust incentives your installation may qualify for and list confirmed savings in your estimate. Eligibility and offers can change. Our team can put together a payment plan that works for your budget.
Every install includes a Manual J load calculation, a written estimate, permits, removal of old heating equipment on a conversion, the new furnace with gas and electrical connections, venting, a condensate drain on high-efficiency models, combustion and carbon monoxide testing, thermostat setup, a homeowner walkthrough, and manufacturer warranty registration.
A few recent Google reviews from homeowners across the metro. We don't edit them.
Phil did a great job of carefully examining all the components of our almost 20 year old HVAC system. He took detailed photos and videos to show me the status. And he didn’t try to sell me anything else! Great experience 10/10System inspection
Efficiency Heating and Cooling came out to our home to do general maintenance on our furnace and heat pump, and also level our heat pump. Tristan was our technician. His work was efficient and thorough. He explained everything he did and told me what Efficiency H&C had to offering the way of maintenance programs. I am very happy with the services we received.Furnace & heat pump maintenance
This was my first time working with this company, and it was an amazing experience! Wayne was super personable, and explained things thoroughly and transparently. The cost was reasonable and that was with the maintenance membership program we joined. Highly recommend this business!Maintenance membership
I definitely recommend Efficiency! On this year's hottest day my AC quit working and Efficiency was able to send a technician right out. He fixed it quickly (luckily it was not a major issue) and now I'm basking in cool air. Thank you so much!AC repair
Tristan was very thorough with diagnosing the issues with my system and walked me through them so I could better understand my options for repair. We’ve had a few HVAC techs look at our system over the last decade or so, and Tristan was by far the best.System diagnosis
Jason came out for an estimate for a heat pump for my house. He listened to what I was looking for function-wise, evaluated the property, gave me a quote with 4 options, and explained the pros and cons of each. He was thorough, friendly, and not at all condescending (women, if you know, you know). Very professional.Heat pump estimate
I bought a furnace from these folks over 10 years ago and was very impressed with their work. I've had them tune up my furnace every year since and it's still the great quality and friendly service. They are dependable and knowledgeable every time I deal with them. I highly recommend them.Furnace install & tune-ups
Efficiency Heating and Cooling is a great company to work with. They gave me multiple options based on personal wants/needs with my 100+ year old house and were patient helping educate me and navigate to a decision. They were prompt, scheduling was easy, very professional, knowledgeable, and walked through with me how my system works once the job was complete. Couldn’t be happier from beginning to end and would heartily recommend them!100+ year old home
Called so many companies to find someone who did duct work beyond cleaning (I had a leak in the duct) and.so glad I got a hold of these guys. Professional, fast, and thorough. Great all around!Duct leak repair
Hire them immediately! Super fair pricing, great service. My Technician, Tristian was communicative and thorough. I tried hiring another company prior and they had me pre-pay, after tons of no shows and shoddy work followed by more no shows I demanded my money back and happily gave it to Efficiency Heating and Cooling.HVAC service
Tristan was very professional. He was on time and explained everything thoroughly. I appreciated the no pressure conversation of future work that could be done with my heating system.Heating system service
What a great experience with Efficiency. From the estimate process to installation, they made everything seamless and easy. When we hit an unexpected snag during installation, they kept us well informed about what was going on how it might affect the timeline. They got everything done and the system is working great!System installation
Two tune-ups a year, priority scheduling and 15% off repairs. No contract, cancel anytime.
Month-to-month · No long-term contract · Covers one system; add more for a discount
You'll talk to someone in our Milwaukie office, not a call center. We'll get a tech out and give you the price before any work starts.
(503) 698-5588Rather talk to someone?
