Last January we replaced a 22-year-old 80% AFUE unit in a 1960s ranch in Sellwood. The homeowner had patched the heat exchanger twice and was averaging over $900 a winter in repair calls. Total replacement job took six hours; the new system paid back the differential in operating costs inside two heating seasons. That's a pretty typical story — and it's why we put so much weight on getting the timing recommendation right when someone asks us about furnace replacement portland options.
There's no universal age cutoff, but once a gas furnace clears 15 years and starts needing a significant repair every season or two, the math usually shifts. We look at three things together: system age, the cost of the current repair relative to what a replacement would run, and whether the heat exchanger — the component that actually keeps combustion gases out of your living space — is still structurally sound.
A cracked heat exchanger is a situation we treat seriously. Same with a system that's short-cycling badly, running continuously without holding temperature on cold nights, or producing inconsistent heat room to room. If any of those are happening, call us and we'll give you a straight read — what's wrong, what it would cost to fix, and what a replacement would look like. We're not going to steer you toward a new unit if a repair genuinely makes sense.
Furnace sizing is one of those things that sounds simple and isn't. An oversized unit will short-cycle — it blasts heat for a few minutes, satisfies the thermostat too fast, and shuts off before the house actually reaches equilibrium. An undersized one runs flat-out on a January night and still can't catch up. Neither ages well.
We use Manual J load calculations on every replacement job. That means we're accounting for your home's insulation levels, window orientation and glazing type, ceiling height, infiltration characteristics, and the actual climate data for your specific neighborhood — not a generic Portland number. Southeast Portland bungalows behave differently than new construction in Happy Valley, and the sizing should reflect that difference. The calculation is what drives the equipment recommendation, not a brand relationship or what we happen to have on the truck.
Portland winters are mild by national standards but persistently damp. For homes already on natural gas, a 96 AFUE two-stage condensing furnace is almost always the right answer — the efficiency advantage pays out over a typical Oregon heating season, and the two-stage burner means quieter, more even operation compared to single-stage units. We carry multiple equipment lines so we're matching the system to the house, not the other way around.
For homes without ductwork or with existing hydronic systems, we evaluate heat pump options that work within Oregon's utility rate structures. Whatever we recommend, all work is covered by the licensing, bonding, and insurance that applies to everything we do in Oregon. If you want to work through what it costs to replace furnace equipment in your home, that conversation happens at your property, not over the phone with a number pulled from thin air.
Oregon requires a mechanical permit for furnace replacements, and inspections happen after installation — not before. We pull the permits, coordinate with the jurisdiction, and have the inspector sign off on the work before we call the job complete. In Portland proper, Multnomah County, and Clackamas County, we've run enough of these to know what each jurisdiction's inspectors look for on venting configurations and gas line connections. That knowledge matters because a permit violation found later becomes the homeowner's problem, not the contractor's.
Most residential replacements wrap up in a single day. Larger homes or jobs requiring significant code-mandated venting upgrades can run into a second day, and we'll tell you that upfront in the quote. Our pricing is fixed before work starts — there are no add-on labor charges for evening or weekend completions, and we offer same-day service when the schedule opens up.
We protect your floors, disconnect and remove the old unit for proper disposal, and complete the new installation including any required venting work. Before we leave, the system goes through a full commissioning check: static pressure measurement, heat rise verification, thermostat communication, and a runtime check to confirm everything is operating within spec. The goal is that you go to bed that night with a working furnace, not a punch list to follow up on.
After commissioning, we walk you through filter options for the new system. The right filter isn't always the highest MERV rating available — higher filtration restricts airflow and can stress the blower on systems not designed for it. We explain the tradeoff and let you pick the fit. Keeping up with furnace filters replacement on a new system is one of the few things a homeowner controls that has a real effect on equipment longevity.
We look at the full system during our initial visit — not just the furnace. If the air handler coil is aging alongside a 20-year-old furnace, replacing them together typically makes more sense than staggering the work. Two mobilizations, two permit pulls, and two sets of startup costs add up. We flag what we find and let you decide on timing based on your budget, not on what generates a second service call for us.
Customers thinking about adding air conditioning in Portland often find that pairing a new furnace with a matched air handler and outdoor unit in the same project reduces both total labor and the disruption of having a crew back in the house six months later. We lay out the numbers both ways.
Our three locations — Portland HQ, Milwaukie, and Happy Valley — put us within a reasonable drive of most corners of the metro without the extended travel time some contractors build into their service fees. We regularly work in Portland, Beaverton, Hillsboro, Tigard, Tualatin, Lake Oswego, Gresham, Oregon City, Clackamas, and surrounding communities. All technicians are direct employees, licensed and bonded in Oregon — not subcontractors dispatched from a staffing pool.
We've been a family-run operation since 2008. That's long enough to have replaced furnaces for people who first called us for a repair, and long enough to care about the reputation that follows the work. If your system is getting close to that decision point, our furnace repair in Portland team can assess what's worth fixing now, and our Portland furnace services page covers the full scope of what we do — tune-ups through full replacements. The broader picture of our heating, cooling, and air quality work lives on our HVAC services in Portland page if you want to see how it fits together.