Furnace Maintenance
Most January furnace failures weren’t surprises — the igniter was already cracking in October, the flame sensor had buildup in September. Annual maintenance finds those things before they find you. Conrad Heating and Cooling serves Beaverton and the Portland metro. Call 503-785-9715 or book online.
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Our Heating Services
Heating Installation
New furnace or full replacement — Conrad handles load calculation, equipment selection, permits, and same-day startup. Sized to your home’s actual load. Free estimates, financing available.
Heating Repair
Furnace not firing, short-cycling, making sounds it didn’t make last winter? Our technicians carry the parts that close most repairs on the first visit. Diagnostic first, written quote before anything gets touched. 24/7 emergency service available.
Heating Maintenance
Annual tune-ups catch cracked heat exchangers, failing igniters, and dirty flame sensors before any of them cause a no-heat call in February. Conrad documents every checkpoint. Maintenance agreement customers get priority scheduling and 10% off repairs.
Why Furnace Maintenance Matters
A gas furnace runs through hundreds of ignition cycles per heating season — each one stresses the hot surface igniter, the heat exchanger seams, the blower motor bearings. The components that fail in February were accumulating wear since October. A fall tune-up interrupts that before the failure.
Beyond preventing breakdowns: a dirty flame sensor causes short-cycling, which drives up gas bills and stresses the heat exchanger. A partially blocked flue raises CO levels in the combustion chamber. Neither shows up on a thermostat. Annual maintenance from Conrad catches both — CCB-licensed, EPA 608-certified technicians, written summary of every finding.
What Our Furnace Maintenance Service Includes
Complete Furnace Maintenance Checklist
Competitors say “thorough inspection.” Conrad’s actual checklist:
- Thermostat calibration and differential test
- Air filter inspection and replacement
- Heat exchanger inspection for cracks — a crack lets CO into the airstream
- Burner cleaning and combustion efficiency check
- Hot surface igniter and flame sensor test
- Blower motor lubrication and amperage draw measurement
- Electrical connections inspection and tightening
- Gas valve and pressure test (gas furnaces)
- Flue and venting inspection for blockages or corrosion
- Safety and limit switch function test
- CO emission level measurement at the supply register
- Static pressure measurement to catch ductwork restrictions
Every item is logged. You get a written summary before we leave — not a sticker on the unit.
Gas and Electric Furnace Maintenance
Gas Furnace Maintenance
Gas furnaces are the most common home heating system in Washington County, and the most safety-critical to maintain. The heat exchanger is the component that matters most — a hairline crack is invisible without close inspection and lets combustion gases mix with your breathing air. Conrad inspects the heat exchanger, cleans the burners, tests the gas valve, and measures CO at the register on every visit.
Electric Furnace Maintenance
Electric furnaces don’t have combustion, so no CO risk and no gas valve to test. But heating elements degrade, sequencers wear, and blower motors accumulate the same bearing wear as their gas counterparts. Annual service checks element draw, relay and sequencer function, and electrical connections. Simpler maintenance checklist, same consequence if skipped.
When to Schedule
September or October — before the heating season starts, before the queue backs up. That window also leaves time to order parts if something turns up during the inspection. Signs maintenance is overdue: rising gas bills without a rate change, uneven room temperatures, a burning smell at startup that doesn’t clear quickly, or a system more than two years past its last service.
What you can do between annual tune-ups:
- Replace the filter every 1–3 months during the heating season — a clogged filter forces the blower to work harder and can trip the high-limit switch
- Keep 3 feet of clearance around the furnace — stored boxes restrict combustion air and are a fire risk
- Clear supply and return vents — furniture against a return vent is one of the quieter ways to raise energy bills
- Check thermostat batteries before the heating season; a dead battery causes more “emergency” calls than any component failure
Anything beyond these — heat exchanger, burners, electrical, gas pressure — needs a licensed technician. Call 503-785-9715.
Furnace Maintenance Plans, Cost, and Year-Round Coverage
Furnace Maintenance Cost
A standard furnace tune-up runs $89–$149 depending on system type. Conrad provides upfront pricing before the visit. HVAC maintenance agreement members pay a reduced rate and get 10% off any repairs found during the visit — and if something needs attention, you find out during a scheduled appointment rather than at 11 PM in January.
H3: Furnace and AC Maintenance Together
Furnace tune-up in fall, AC maintenance in spring — one company, one service record, one plan that covers both. If a heat pump runs both heating and cooling, Conrad’s maintenance agreement schedules both visits automatically.
H3: Commercial Furnace Maintenance
Conrad provides scheduled maintenance for furnaces in offices, retail spaces, and commercial properties throughout the Portland metro. Custom service intervals based on system run hours and occupancy schedule. Commercial HVAC services available with flexible scheduling to minimize business disruption
Book Your Furnace Maintenance Today
Fall slots fill faster than most people expect. Conrad Heating and Cooling serves Beaverton and the Portland metro — Mon–Sun, 8 AM–7:30 PM.
Why Choose Conrad for Furnace Maintenance?
Certified and Experienced Technicians
Oregon CCB license and EPA 608 certification — both required by state law, both verified before anyone goes on a job. Conrad’s technicians are full-time and in-house. The person who comes to your house has been trained on gas combustion systems, not running through a generic checklist on a system they’ve never worked on.
Detailed Multi-Point Inspection
Twelve-plus documented checkpoints per visit — heat exchanger integrity, combustion readings, ignition components, blower motor, electrical, flue, CO emission level at the register. You get the written summary. If something’s borderline, you see the measurement and we explain what it means.
Honest Recommendations, No Upselling
Conrad gets paid for the maintenance visit. Recommending parts that don’t need replacing doesn’t build the customer base — it ends it. If a component tests within spec, we say so. If something is borderline, we show you the reading. If something needs replacement, written quote before we touch it.
Flexible Maintenance Plans Available
One plan, both systems — furnace in fall, AC or heat pump in spring. Priority scheduling, 10% off repairs, automatic reminders. Details at HVAC Maintenance Agreement.