From about October through April, homes in western Oregon spend most of their time wet. A fall exterior check has one job: find the places where water can get in or stay put, and fix them before winter turns a small problem into a large one. This checklist follows the path water takes, from the roof down to the ground, with what to look for at each stop and when to call a professional.
Quick answer: Before an Oregon winter, clean your gutters after the leaves drop, scan the roof from the ground for damaged shingles and failed flashing, press a screwdriver into trim and siding to find soft wood, check the seals around windows and doors, inspect the deck and stairs, and make sure water drains away from the foundation. A walk around the house takes about half an hour and catches the problems that are cheapest to fix now.
Why does fall matter for Oregon homes?
Moisture is the biggest threat to homes in the Willamette Valley and the greater Portland area. Long wet winters, damp shade and moss mean that wood, paint, caulk and roofing work against water for months at a time. A small gap that stays dry in summer can let water in every day from fall to spring, and decay can spread behind paint and siding long before it shows. Checking now, while you can still choose your timing, beats discovering the problem through a stained ceiling in January.
The 10-point exterior checklist
1. Clean the gutters and downspouts
Do this in late fall, after the leaves have dropped, and again in spring. Clogged gutters send water under shingles and into the fascia and soffit, where it causes rot that costs far more to fix than the cleaning. Make sure downspouts discharge well away from the foundation, and plan on more frequent cleanings if you have large trees nearby. Our guide on how often to clean gutters in Oregon has the details, and our gutter replacement and cleaning service covers systems that are sagging or pulling away from the fascia.
2. Scan the roof from the ground
You do not need to climb a wet roof. Walk the perimeter, or use binoculars, and look for missing, curling or cracked shingles, bare patches where granules have worn away, and heavy moss. Granules collecting in your gutters are another clue. Our guides to the warning signs your roof needs repair and to whether you should remove roof moss explain what each sign means.
3. Check flashing, vents and chimneys
Many leaks that seem to start at the shingles actually begin at failed flashing or a worn seal around a pipe. Look at the metal where the roof meets a chimney, a wall, a skylight or a vent, and watch for lifted edges, gaps or rust stains. Stains on ceilings or walls near these spots are a reason to schedule a professional roof inspection soon.
4. Probe trim, fascia and the bottom edge of siding
Press a screwdriver into suspect wood. Sound wood resists, while decayed wood feels soft or spongy. Focus on window and door trim, the bottom edge of siding, fascia and soffit along the roofline, and any spot where paint peels in the same place every year. Soft wood usually means water has been getting in for a while, so the source needs fixing along with the board. Read what causes dry rot in Oregon homes and see how our dry rot repair traces the water back to its source.
5. Inspect siding and caulk joints
Look for cracked or loose siding, gaps at corners and joints, and stains below windows or roof edges. Small gaps are easy to fix, while open joints let water get behind the siding. If damage is spread across whole walls, replacement may be smarter than repeated patching. Compare materials in our guide to vinyl vs fiber cement siding, learn about siding replacement, or use our exterior home repairs service for smaller fixes.
6. Check windows and doors
Look at the caulk and seals around every window and door, test that they close tightly, and check for water stains on the trim or wall beneath them. Failing seals let in drafts and moisture, and poorly flashed openings are a common starting point for rot. If your windows are old and failing, our comparison of vinyl and fiberglass windows helps you weigh options, and the windows and doors page covers installation.
7. Look over the deck, stairs and railings
Sweep off leaves and clear the gaps between boards so water can drain. Check that railings are tight, stairs are solid and fasteners are not rusted or loose, then look underneath at the ledger, joists and posts. If a screwdriver sinks into a joist or post, stop using that area and have it inspected. See how long a deck lasts in Oregon and our deck repair and maintenance service.
8. Note failing paint
Paint is the first line of defense for siding and trim. Peeling, bubbling or chalky areas, especially near the bottom of walls, mean moisture is getting through. Photograph problem spots now so you can plan a repaint. Our guide on how often to repaint your house exterior in Oregon helps with timing, and our exterior painting page explains the process.
9. Check fences and gates
Look for leaning posts, sagging gates and boards that are rotting near the ground. In wet Oregon soil, posts that sit in standing water lean and rot long before the boards fail. A gate that drags or will not latch is almost always a framing or post problem, so a new hinge rarely fixes it. Learn more about fence installation and repair.
10. Walk the grade and drainage
After a heavy rain, watch where the water goes. Soil, mulch or plants piled against a wall keep wood damp and feed rot, and standing water beside the foundation means a downspout or the grading needs attention. Extensions and splash blocks move water away from the house, and pulling plantings back from the siding lets walls dry out between storms.
Which problems cannot wait until spring?
Some findings should not wait for good weather: an active roof leak, ceiling stains that are growing, soft or spongy structural wood, a railing that moves, or stairs that feel unsafe. When a storm damages a roof, our approach is to make it watertight right away and then plan the permanent repair for when conditions allow. For anything else, photos and a quick call often settle how urgent it is.
Winter exterior checklist at a glance
| Area | What to check | Call a pro if |
|---|---|---|
| Gutters and downspouts | Debris, sagging, water leaving away from the foundation | Overflow in rain, gutters pulling from the fascia, stains on siding |
| Roof | Missing, curling or cracked shingles, granule loss, moss | Interior stains, repeated leaks, wear across large areas |
| Flashing | Chimneys, vents, skylights, wall joints | Lifted or gapped metal, leaks near penetrations |
| Trim and fascia | Soft or spongy wood (screwdriver test) | Soft areas, cracked grain, musty smell near roof edges |
| Siding and paint | Cracks, gaps at joints, peeling paint, stains | Damage across a wall, paint failing in the same spot each year |
| Windows and doors | Caulk, seals, stains beneath | Water stains, drafts, failing seals |
| Deck, stairs, railings | Loose fasteners, soft boards, ledger and posts | Spongy framing, wobbly railing |
| Fences and gates | Leaning posts, sagging gates | Posts rotting at the base |
| Grade and drainage | Standing water, soil against walls | Water pooling at the foundation |
Frequently asked questions
When should I clean my gutters in Oregon?
At least twice a year: in late fall after the leaves drop and again in spring. Homes with large trees nearby may need more frequent cleaning.
What is the most common cause of winter damage to Oregon homes?
Moisture. Water that gets past roofing, flashing, caulk, siding or paint, and then stays damp through the long wet season, leads to rot, stains and failed finishes. Most of this checklist is about keeping water out and moving it away.
How long does an exterior check take?
A yearly walk around the house takes about half an hour. A professional inspection of the roof, flashing and decking goes further and can find problems you cannot see from the ground.
Can exterior work be done in winter?
It depends on the job and the weather. Roof installation is available in winter when conditions allow, and urgent leaks are made watertight right away. Weather-sensitive work such as painting is usually scheduled for dry stretches. Call us to talk through your project and timing.
Does Salexx serve my area?
We work throughout Yamhill County, Washington County and the Portland metro, with local pages for Newberg, Sherwood, Tigard and Portland. See the full list on our service areas page.
If you found something on this list and are not sure how serious it is, we are happy to take a look. Request a free estimate or call 503-200-9880.
