Home Services Furnace Tune-Up & Maintenance
Furnace Maintenance

Prevent the
Winter Breakdown.

Annual tune-ups catch worn parts and dirty burners before the cold snap. No surprise breakdowns.

Annual Tune-Ups
All Brands
CO Safety Check
Extend Lifespan
Annual Tune-Ups Carrier • Trane • Lennox • Goodman • Rheem 4.9★ on Google Licensed & Bonded in Washington State Extends System Life to 20+ Years Keeps Warranty Valid Annual Tune-Ups Carrier • Trane • Lennox • Goodman • Rheem 4.9★ on Google Licensed & Bonded in Washington State Extends System Life to 20+ Years Keeps Warranty Valid
The Maintenance Difference

Maintained vs. Neglected

Furnaces work hardest on the coldest days. That's also when they fail.

Without Maintenance

Declining System

Carbon monoxide risk from cracked heat exchanger
Higher gas bills from dirty burners
Surprise breakdowns on the coldest nights
Shorter furnace lifespan (10–12 years)
Warranty voided by most manufacturers
With Annual Tune-Up

Optimized System

Safe operation confirmed every season
Lower, predictable gas bills
Reliable heat all winter long
Furnace lasts 20+ years
Manufacturer warranty stays protected
Our Inspection

What We Check

Full checklist every visit. Nothing skipped.

Heat Exchanger

Cracks and corrosion check. Top cause of CO leaks in homes.

Burner Assembly

Cleaned and flame pattern verified. Dirty burners waste gas and create unsafe byproducts.

Ignitor & Flame Sensor

Tested and cleaned. The #1 cause of "won't stay lit" calls.

Flue & Venting

Blockages, draft, connections. Bad venting pushes combustion gas back inside.

Gas Pressure

Measured at the manifold. Wrong pressure kills efficiency and heat exchanger life.

Blower Motor

Amp draw and bearings checked. Failing blowers overheat the system and trip shutdowns.

Thermostat Calibration

Calibration checked. Even 2° off wastes energy all season.

Air Filter

Checked and replaced if needed. Clogged filters overheat the furnace and raise gas bills.

Timing

When to Schedule

Book before the first cold snap. Skip the holiday rush.

Fall Tune-Up (Recommended)

Before heating season. When manufacturers recommend service. Catch issues before you need heat.

Inspect heat exchanger for cracks
Clean burners and check ignition
Test gas pressure and safety controls
Verify flue draft and CO levels
Replace filter and check airflow

Signs You're Overdue

Don't wait for fall. Schedule now to dodge a mid-winter failure.

Yellow or flickering burner flame
Strange smells when furnace starts
Short cycling (turning on and off quickly)
Unusually high gas bills
More than 12 months since last service
Real Customers

What Covington Homeowners Are Saying

★★★★★

"Had our furnace tuned up in October. The tech found a cracked flame sensor that would have left us without heat by December. Replaced it on the spot. Thorough and honest service."

MK
Mike K.
Covington, WA
★★★★★

"Six years of annual tune-ups with Next Phase. Our Lennox furnace runs perfectly every winter. Gas bills have stayed flat even as rates went up. Maintenance pays for itself."

SB
Sarah B.
Maple Valley, WA
★★★★★

"The technician checked the heat exchanger, cleaned the burners, tested the gas pressure, and showed me everything he found. First company that actually walked me through the inspection."

DP
Diana P.
Renton, WA
★★★★★

"Our furnace is 18 years old and still going strong. Annual maintenance is the only reason. Next Phase has been servicing it for the last four years. Highly recommend their tune-up service."

RJ
Robert J.
Kent, WA
★★★★★

"Scheduled a fall tune-up after moving into our new home. They found the previous owner hadn't changed the filter in over a year. Everything cleaned, adjusted, and running perfectly now."

AT
Amy T.
Auburn, WA
★★★★★

"Had our furnace tuned up in October. The tech found a cracked flame sensor that would have left us without heat by December. Replaced it on the spot. Thorough and honest service."

MK
Mike K.
Covington, WA
★★★★★

"Six years of annual tune-ups with Next Phase. Our Lennox furnace runs perfectly every winter. Gas bills have stayed flat even as rates went up. Maintenance pays for itself."

SB
Sarah B.
Maple Valley, WA
Questions

Furnace Maintenance FAQ

Once a year, ideally early fall. Keeps efficiency up, catches worn parts, satisfies warranty terms. Older than 15 years? Consider twice yearly.

Usually yes. Carrier, Trane, Lennox, Goodman, and Rheem require annual professional service for warranty claims. No records, no claim.

Heat exchanger, burners, ignitor, flame sensor, flue, gas pressure, blower, thermostat, filter. About 60–90 minutes.

Yes. Cracked heat exchangers, dirty sensors, gas drift — no symptoms until total failure. Tune-ups catch them early.

Maintained: 20–25 years. Neglected: major issues at 10–15. Regular service is the biggest factor.

Schedule Today

Prevention Costs Less
Than Repair.

Book your annual tune-up. Safe, efficient, and ready for winter.

All brands serviced  ·  Licensed & insured  ·  Warranty-compliant service records

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