Months of rain, wind, and moss have a way of leaving their mark on PNW homes. Before patio season fully takes over, it’s worth doing a quick seasonal checkup to make sure everything is ready for the sunnier stretch ahead.

A little maintenance now can prevent bigger issues later and keep your home running smoothly through the warmer months. Here are twelve smart things homeowners should check each spring.

Inspect your roof, gutters & downspouts
Winter storms and steady rain can be tough on roofing and drainage systems. Look for missing shingles, damaged flashing, and debris that may have collected in gutters. Clearing everything out now helps water move away from the house instead of pooling where it shouldn’t.
Pro tip: If you see shingle granules collecting in your gutters, it could be a sign your roof is nearing the end of its life.

Check for moss on the roof and hard surfaces
Moss is practically part of the landscape here, but it can be rough on roofs. When it builds up, it traps moisture and shortens the life of shingles. Walkways, patios, and driveways can also get slick over the winter, so a quick cleaning now makes everything safer and keeps moss from spreading further.
Pro tip: Avoid pressure washing a roof. A gentle moss treatment is usually safer and more effective.

Take a look at the crawlspace
Many PNW homes have crawlspaces, and they’re one of the most common places moisture problems develop. Make sure vents are clear, vapor barriers are intact, and there’s no standing water. Catching issues early can prevent bigger structural or air quality problems down the road.
Pro tip: A musty smell inside the home can sometimes trace back to crawlspace moisture.

Test the sump pump
If your home has a sump pump, spring is a good time to make sure it’s working. Pour a bucket of water into the pit and confirm the pump activates and drains properly. After a wet winter, this small check can prevent a much bigger mess later.
Pro tip: Make sure the discharge pipe carries water several feet away from the foundation.

Check for mold, mildew, and indoor moisture
Bathrooms, basements, laundry areas, and attics can all collect moisture during the long damp season. Take a quick look for musty smells or visible spots and improve ventilation where needed.
Pro tip: Running bathroom fans for 15–20 minutes after showers can significantly reduce moisture buildup.

Reseal windows and doors
Rain and temperature changes can wear down caulking and weatherstripping over time. Walk around the house and check for cracks or gaps around windows, doors, and exterior trim. Sealing things up helps keep moisture out and improves energy efficiency.
Pro tip: If you can see daylight around a door frame, it’s definitely time to replace the weatherstripping.

Reset the yard and garden beds
Winter tends to scatter leaves, branches, and general debris across the yard. Rake things up, aerate compacted soil, and refresh garden beds with compost. It’s also a great time to plant early vegetables or divide perennials before summer growth kicks in.
Pro tip: Adding a fresh layer of mulch helps retain moisture and keeps weeds down as the weather warms.

Turn on the Sprinklers and outdoor faucets
Before the dry season arrives, test irrigation systems and outdoor faucets for leaks or damage from winter freezes. Check sprinkler heads for clogs or uneven spray patterns so everything is ready once warmer weather sticks around.
Pro tip: Turn the system on slowly the first time to avoid pressure damage to sprinkler heads.

Give decks and railings a quick safety check
Wood decks take a beating in the Pacific Northwest. Look for soft spots, loose boards, wobbly railings, or areas where moisture may have caused rot. Spring is a great time to tighten things up and reseal wood surfaces before outdoor gatherings start.
Pro tip: Pay extra attention to where deck boards meet the house, as these areas are most prone to moisture damage.

Service the HVAC system
Before the first warm stretch arrives, replace HVAC filters and consider scheduling a seasonal tune-up. Keeping systems clean and maintained helps them run more efficiently and can extend their lifespan.
Pro tip: A clogged filter can reduce system efficiency by up to 15 percent.

Check drainage around the foundation
Walk around the outside of your home and make sure soil slopes away from the foundation. Low spots near the house can collect water during spring rains and eventually lead to moisture problems in basements or crawlspaces.
Pro tip: Even a small slope of about six inches over ten feet can make a big difference in drainage.

Declutter and reset for the season
Spring naturally brings the urge to clear things out. Take a pass through garages, storage areas, and closets to rotate seasonal gear and donate items you’re no longer using. A little reset can make the whole home feel lighter and ready for the months ahead.
Pro tip: Create a simple “donate box” in the garage so clutter has somewhere to go throughout the year.

Need help tackling something on the list? Reach out to your local real estate pro who is always a resource for guidance and connection to local experts.