Quick answer
In SW Washington the rhythm is two seasons: a spring visit readies cooling and clears a winter's worth of debris from outdoor equipment, and a fall visit — the safety-critical one — inspects the furnace's heat exchanger and combustion system before the heating season that does most of the work here. Between visits, your job is simple: filters every 1–3 months, keep the outdoor unit clear, and call when something sounds different.
- Fall is the must-do visit in a heating-dominated climate: combustion safety and heat exchanger inspection.
- Spring readies cooling and cleans up after the wet season — moss, needles, and debris around outdoor units.
- Filters every 1–3 months is the highest-value homeowner habit — more often during wildfire smoke.
- A real tune-up produces measurements (charge, combustion, airflow), not just a rinse and a sticker.
- Our Basic maintenance plan is $195/year and makes the schedule automatic, with priority service and member discounts.
What can you handle yourself?
The homeowner list is short and genuinely matters — ENERGY STAR's maintenance checklist backs the same fundamentals:
- Filters every 1–3 months. The cheapest insurance in HVAC. A loaded filter starves airflow, raises bills, and strains the blower. Check monthly during heavy heating use and during wildfire smoke events, when filters load fast.
- Keep the outdoor unit clear. PNW yards attack heat pumps and AC condensers with fir needles, leaves, moss, and encroaching shrubs. Keep two feet of clearance and rinse debris off the coil gently (system off) each spring.
- Watch the condensate path. Confirm the drain runs when cooling season starts — a clogged line is a preventable shutdown.
- Listen. New rattles, longer run times, short bursts of on-off cycling — early symptoms are cheap to fix; ignored ones aren't.
What should the fall (heating) visit cover?
Fall is the visit not to skip, because heating is the season that works equipment hardest here — and because it's the safety inspection. A proper heating tune-up on a gas furnace includes a heat exchanger inspection (the component that keeps combustion gases out of your air — see why a cracked one ends the repair conversation), burner and ignition checks, gas pressure and combustion verification, safety-control testing, and blower and airflow checks. Heat pumps get their heating-mode equivalent: defrost operation, refrigerant charge, backup-heat staging, and outdoor coil condition.
The deliverable that separates a real tune-up from a drive-by: readings. Temperature rise, combustion numbers, measured charge — a technician should hand you data, not adjectives.
What should the spring (cooling) visit cover?
Spring readies the system for cooling and undoes what a wet PNW winter did to outdoor equipment: coil cleaning after months of needles and moss, refrigerant charge verification, capacitor and electrical testing under load, condensate system clearing, and thermostat calibration. With smoke seasons in the mix, spring is also the moment to verify your filtration plan — confirm what MERV rating your blower can handle and stock filters before you need them.
Homes with an HRV get its filters and core checked on the same cadence — a two-minute add-on that keeps ventilation doing its quiet job.
Is a maintenance plan worth it?
The honest framing: a plan's core value is that the schedule happens automatically. Our Basic plan is $195 per year and covers the annual tune-up and inspection, filter and airflow checks, priority scheduling when the weather turns and the calendar fills, member discounts on repairs, and documentation that protects your manufacturer warranty (most require proof of regular professional maintenance to honor claims). The step-up Comfort plan covers both seasonal visits — heating and cooling — with deeper discounts.
Run your own numbers against booking visits à la carte; for most households the plan wins on the priority access alone, because breakdowns cluster in the exact weeks everyone else's do. Either way, maintained systems reach their design life far more reliably than neglected ones — the pattern behind every repair-vs-replace decision we're called out on.
About this guide
Written and reviewed by the Home Energy Group team — a family-owned HVAC company celebrating 25 years of comfort & care across SW Washington and the Portland metro, licensed in Washington (WA LIC# HOMEEGI003J7) and Oregon (OR CCB# 184255), and an authorized Daikin & York dealer. Guidance reflects the systems we install and service every week. Last reviewed July 3, 2026.
Sources & standards
Common questions
How often should HVAC be serviced in the Pacific Northwest?
Twice a year for most systems: a fall heating tune-up (the safety-critical visit in our heating-dominated climate) and a spring cooling check. Heat pumps especially benefit from both, since they run year-round. Filters are on their own schedule — every 1 to 3 months.
What does the $195 Basic maintenance plan include?
The Basic plan at $195/year includes an annual system tune-up and inspection, filter check and airflow testing, priority scheduling, member discounts on repairs, and maintenance documentation that protects your manufacturer warranty. The Comfort plan adds the second seasonal visit — call (360) 944-8616 to enroll.
Does skipping maintenance void a furnace warranty?
It can jeopardize claims — manufacturers commonly require proof of regular professional maintenance when honoring warranty repairs. A documented maintenance history is part of what a plan provides.
When should I service my heat pump?
Ideally twice a year — heating-mode checks in fall, cooling-mode in spring — because a heat pump works both seasons and gets no off-season rest. At minimum, don't skip fall: defrost operation, charge, and backup-heat staging matter most for winter reliability.
