Furnace Repair in Lake Oswego, OR
Many homes around the lake were built before 1980 with original undersized ductwork that struggles to feed a modern variable-speed heat pump — duct sealing or upsizing is often the quiet half of the install.
Trusted by Portland Homeowners
Furnace Repair · Lake Oswego
Same-day furnace diagnosis. Flat-rate quotes, parts on the truck.
Lake Oswego ranges from 1940s lakefront cottages and 1970s First Addition homes to large 1990s–2000s estates on Mountain Park and out by Westlake.
Many homes around the lake were built before 1980 with original undersized ductwork that struggles to feed a modern variable-speed heat pump — duct sealing or upsizing is often the quiet half of the install.
We're 15 minutes from our Oregon City shop, so our trucks roll through Lake Oswego most days of the week.
Why Lake Oswego chooses us
Local crew, real credentials, transparent pricing.
Manufacturer-trained
Trane Comfort Specialist + Mitsubishi Diamond Contractor + Energy Trust of Oregon Trade Ally — all three manufacturer-recognized credentials.
Licensed + bonded
Oregon CCB# 247087, BBB-accredited, fully bonded and insured. Permits pulled on every install.
15 minutes from Lake Oswego
Our shop in Oregon City is a short drive. Trucks dispatched from the closest crew.
Honest, flat-rate quotes
No upsell theater. Quotes locked before work starts. We tell you straight when a repair beats replacement.

How furnace repair works
What a furnace repair job looks like in Lake Oswego.
Most furnace problems we see are known and fixable: pilot/igniter, flame sensor, gas valve, control board, blower motor, capacitor. We carry the common parts on the truck so a typical repair finishes the same call.
The diagnostic itself is straightforward: combustion analysis, electrical at the contactor, gas pressure at the manifold, blower static pressure. We chase the actual fault, not whichever part has the highest markup.
Flat-rate quote before any wrench moves. If you decide not to proceed, you owe us the diagnostic fee and that's it. No pressure, no upsell theater.
Furnace Repair questions Lake Oswego homeowners ask
- Yes — we cover every ZIP in Lake Oswego (97034, 97035) and the surrounding Clackamas County area. 100% Satisfaction Guaranteed on every job.
- We're 15 minutes from our Oregon City shop, so trucks are rolling through Lake Oswego most days of the week. Same-day diagnosis on most furnace repair calls.
- Pre-1980 lakefront homes with undersized return air and tight crawlspaces that complicate heat-pump retrofits.
- After-hours emergencies get a tech dispatched as fast as the next available crew. Every job is backed by our 100% Satisfaction Guarantee.
- Most repairs run $150–$650 depending on the part. Major component swaps (control board, blower motor, draft inducer) run $400–$1,200.
- Rule of thumb: if the repair is more than 50% of replacement cost AND the system is over 12 years old, replacement usually wins. We model the math at the call.
Lake Oswego homeowners
Free in-home estimates across Lake Oswego.
Tell us what's going on. Same-day diagnosis on most furnace repair calls in Lake Oswego.
More in Lake Oswego
Other services we offer in Lake Oswego.
- Furnace Installation in Lake Oswego
- Furnace Maintenance in Lake Oswego
- Heat Pump Installation in Lake Oswego
- Heat Pump Repair in Lake Oswego
- Ductless Mini-Split in Lake Oswego
- AC Installation in Lake Oswego
Nearby cities



