The Annual Home Maintenance Checklist

A Puget Sound home needs roughly two dozen maintenance tasks each year across four systems: electrical, plumbing, heating and cooling, and safety. Most are simple checks you can do yourself in under an hour. A handful need a licensed technician. This checklist covers all of them, organized by system, so you can spread the work across the year instead of reacting to failures.

Why does an annual checklist matter in Western Washington?

Our climate is hard on houses. It rains from October through April. Crawlspaces stay damp for months. Windstorms knock out power between October and February, and hard freezes still happen, like the one in December 2022. On top of the weather, much of the local housing stock was built before 1980. Craftsman, mid-century and split-level homes often still have their original panels, aging pipes and minimal insulation. Systems in these homes fail earlier when nobody looks at them.

This article gives you the yearly cadence: what to check and what to schedule. It is not a repair guide. If you want a room-by-room walkthrough of what to inspect and fix in an existing home, use our home repair checklist. If you are buying a house, start with the homebuyer inspection checklist instead. Those guides go deep on each item. This one keeps you on schedule.

What electrical tasks belong on the annual list?

Electrical problems rarely announce themselves. These checks catch the early signs.

• Test every GFCI outlet (DIY). Press the test button, confirm the power cuts, then reset. Do this in kitchens, bathrooms, the garage and outdoors. Once a year is the minimum. Monthly is better.
• Test AFCI breakers (DIY). Most panels installed after 2000 have breakers with a test button. Press each one and confirm it trips.
• Look at your panel (DIY, eyes only). Open the door, not the cover. Look for rust, scorch marks, a warm smell or buzzing. Never pull the cover yourself. Our guide to electrical panel maintenance explains what each warning sign means.
• Schedule a panel inspection (pro). If your panel is more than 25 years old, or if it is a Federal Pacific or Zinsco brand, have a licensed electrician inspect it. Washington law requires licensed, permitted work for anything beyond a visual check.
• Check exterior outlets and fixtures (DIY). Confirm covers close, gaskets seal and nothing has water staining. Rain finds every gap.

What plumbing and water tasks belong on the list?

• Flush the water heater (pro, or careful DIY). Sediment builds up in the tank every year and shortens its life. A yearly flush is the single highest-value plumbing task. See why in our guide to water heater flushes.
• Test your water pressure (DIY). A gauge from the hardware store screws onto a hose bib. You want 40 to 80 psi. Higher than that stresses every fixture and appliance in the house.
• Exercise the main shutoff valve (DIY). Close it fully, then reopen it. A valve that has not moved in a decade may not close during an emergency, which is exactly when you need it.
• Check under every sink and around every toilet base (DIY). Look for moisture, swelling wood or mineral crust on fittings. Small leaks in damp Northwest crawlspaces become mold problems fast.
• Inspect washing machine hoses (DIY). Replace rubber hoses that show bulges or cracks. Braided stainless hoses are cheap insurance.
• Winterize hose bibs before the first freeze (DIY). Disconnect hoses in October. Burst hose bibs are one of the most common freeze failures our plumbers see.
• Test the sump pump before the fall rains (DIY). Pour a bucket of water into the pit and confirm the pump runs and drains it.

What heating and cooling tasks belong on the list?

• Replace filters every 1 to 3 months (DIY). This is the cheapest way to protect a furnace or heat pump. Set a phone reminder.
• Schedule a heating tune-up every fall (pro). A technician cleans the burner or coils, checks safety controls and measures performance before the heating season starts.
• Check cooling before summer (DIY plus pro). Clear leaves and debris from the outdoor unit, keep two feet of clearance and run the system once in spring. If your AC or heat pump is more than a few years old, add a professional cooling check.
• Clear the condensate drain (DIY). A clogged drain line shuts systems down and leaks water where you do not want it.

Heating and cooling deserve more detail than one list can hold. Our HVAC maintenance checklist covers filters by MERV rating, coil care, heat pump defrost checks and duct health in depth.

What safety tasks belong on the list?

• Test smoke and CO detectors (DIY). Press the test button on every unit. Replace batteries once a year and replace the whole detector after 10 years. NFPA data ties most home fire deaths to homes without working alarms.
• Check your fire extinguisher (DIY). Confirm the gauge reads in the green and the pin is intact.
• Walk the exterior after windstorm season (DIY). Look for damaged service mast connections, sagging lines or vegetation touching the service drop. Do not touch anything. Call a pro if you see damage.

Which tasks are DIY and which need a licensed tech?

The pattern is simple. Testing, looking and cleaning are yours. Anything that involves opening equipment, working inside a panel, handling gas or refrigerant, or touching the water heater's internals belongs to a licensed technician. In Washington, electrical and plumbing work beyond basic homeowner tasks requires a licensed contractor and often a permit through L&I or SDCI. Unpermitted work can void insurance coverage and complicate a home sale.

A good rhythm for the pro visits: one heating tune-up in fall, one cooling check in spring, one water heater flush per year, and a panel or whole-home inspection every few years, or annually for homes older than 40 years.

Common questions

How long does the annual checklist actually take?

The DIY items add up to three or four hours across a whole year. Most take ten minutes each. The professional visits take one to two hours each and you do not have to be standing over the technician. The time cost is small compared to one emergency call.

I have never done any of this. Where do I start?

Start with safety: test your smoke and CO detectors today. Then do the free checks: GFCI outlets, the panel look-over, under-sink inspections and the main shutoff valve. Book the water heater flush and a heating tune-up next. That covers the highest-risk items in the first month.

Do I really need a professional visit every year?

For heating equipment and the water heater, yes. Manufacturers require documented annual service to keep warranties valid, and both systems hide their problems until they fail. For the electrical panel, every few years is enough unless the home is older or you notice warning signs.

What order should I do the tasks in?

Follow the seasons. Fall is for heating, gutters-adjacent drainage checks and freeze prep. Spring is for moisture inspection and cooling prep. We built a companion guide, home maintenance by season, that arranges this whole checklist as a Puget Sound calendar.

What to do next

Print this list, put the DIY items on your calendar, and book the two professional visits that matter most: a heating tune-up and a water heater flush. Eco handles electrical, plumbing, heating and air under one roof, so one call covers the whole checklist. Browse our home services or book online, or call (206) 970-1031. We answer 6 AM to 6 PM, every day.