Furnace tune-ups that protect your warranty and prevent no-heat calls
$140 fall maintenance with combustion analysis, safety checks, and airflow testing before cold weather hits.
Trusted by Portland Homeowners
Looking for furnace maintenance in a specific city? We serve Portland, Beaverton, Lake Oswego, Oregon City, and 3 more nearby cities.
What's in a tune-up
What's included in our $140 furnace tune-up — six things, every visit.
Not a "dust the filter and call it good" visit. Real combustion analysis, real electrical checks, real cleaning where it matters.
Filter inspection & swap
Standard 1" filters checked or replaced. We catch undersized filters, crushed cases, and the wrong MERV rating.
Combustion analysis
Full O2/CO/temperature reading at the flue. Catches efficiency loss, dangerous CO production, and a cracked heat exchanger.
Electrical safety check
Capacitors, contactors, wire integrity, amp draws, and ignitor resistance verified to spec.
Burner & flame sensor cleaning
Carbon and dust pull off the flame sensor over time, causing short-cycling. We clean and reseat — usually a 5-minute fix that saves a future service call.
Blower & airflow check
Static pressure measured, blower wheel inspected, belt tension verified. Off-spec airflow burns out heat exchangers early.
21-point inspection
Full system walk-through with a written report. You get a copy in your inbox after the visit.
Why tune up
Why annual furnace maintenance pays for itself — three reasons.
Keep the warranty valid
Manufacturer warranties on Trane, American Standard, and most major brands require annual maintenance to stay valid. Skip a year and the warranty can void.
Catch problems early
Most expensive HVAC repairs start as cheap problems. A flame sensor cleaning today prevents a no-heat call in February.
Lower bills
A tuned furnace runs 5–15% more efficiently than a neglected one. Pays for the visit most years on its own.
Want it on autopilot?
See our Core and Pro maintenance plans.
Annual tune-ups included, priority service, and member-rate pricing on repairs. Two tiers from furnace-only to AC-and-furnace protection.
Filter subscription
Never miss another filter change.
Subscribe and we'll ship the right filter for your system to your door on the schedule it actually needs — no reminders to track, no last-minute hardware store runs. Cancel anytime.
Furnace tune-up questions, answered.
- Fall, before heating season — September through November is ideal. Catches summer-dust accumulation and ensures the system is ready when the cold hits.
- About 60–90 minutes for a standard residential furnace. Older systems or systems with significant deferred maintenance can run longer — we tell you up front if anything is out of spec.
- A one-off fall tune-up is $140 flat. Comfort Care members get the annual visit baked into the plan plus discounted member rates on any repair the tech finds — including parts and labor. See Maintenance Plans for the membership tiers.
- Technically the system will run without one. But manufacturer warranties require it, and the small problems caught at a tune-up are usually 1/10th the cost of the failure they prevent. It's the cheapest insurance you can buy.
- No. A tune-up is preventive — checking, cleaning, adjusting. If we find something broken during the tune-up, we quote the repair separately at flat-rate. You decide whether to proceed.
Cities we serve this in
Furnace Maintenance in 5 nearby cities.
Explore service details and appointment information for your city. Our team serves these communities from our Oregon City shop.
Written by Jason Morris, Co-Founder
Started in HVAC at A-Temp in 1994 · CCB#247087
Heating season is coming
Get on the schedule before the cold hits.
Free in-home estimates across the metro. We typically book fall tune-ups September through November — the earlier the better.
