7 Siding Checks to Make Before the Winter Storms Arrive

Before the first big blow of the season, your siding needs seven specific checks: fastening, joints and caulking, flashing, the roofline trim, the bottom edge, drainage above the walls, and the trees around them. An hour with a notepad in October routinely prevents the kind of February phone call that starts with "a section of my wall is gone."

Lower Mainland windstorms are a rhythm, not a surprise. Most years deliver several events with gusts strong enough to strip compromised cladding, and the southeasterly direction of storm winds means the same walls take the load year after year. Wind almost never destroys sound siding. It finds existing weakness and enlarges it. These checks are about finding that weakness first.

1. Push on Panels: The Fastening Check

Walk each wall and press firmly on panels at edges and corners, especially on south and southeast exposures. Sound siding feels solid and springs back uniformly. Trouble feels loose, rattles, lifts at the bottom edge, or clicks against the wall. On vinyl, check that panels are locked into each other along their length; an unlocked seam is a wind scoop. On plank siding, look for proud nail heads and boards that have pulled away from the wall plane. Anything that moves by hand will move a great deal more at highway-speed gusts, and re-securing it now is one of the quickest jobs a siding repair crew does.

2. Read the Joints: Caulking and Seams

Inspect every place dissimilar things meet: window and door perimeters, corner trim, hose bibs, dryer vents, electrical penetrations, and the vertical seams between siding sections. You are looking for sealant that has cracked, shrunk back, or released from one side of the joint. Winter rain in this region arrives sideways on the wind, and open joints that shrug off summer showers admit water steadily in a storm. Recaulking in dry October weather is easy; doing it between December systems is not.

3. Follow the Metal: Flashing

Flashing does the silent work of steering water out of the wall at windows heads, horizontal trim, deck ledgers, and roof-to-wall intersections. Check that head flashings above windows and doors slope outward and have not lifted, that kickout flashing exists where a roof edge dies into a wall, and that no flashing is bent, rusted through, or buried under a caulking repair from a previous owner. Flashing failures are quiet, chronic leaks rather than dramatic ones, and they are a common root cause behind the rot we uncover during bigger projects. If what you find suggests water has been getting in for a while, the decision framework in our siding repair and replacement guide will help you size the problem honestly.

4. Look Up: Soffit and Fascia

Storm wind swirls under eaves and works on the roofline trim. Scan the soffit for panels that sag, have shifted out of their channels, or show water staining, and check the fascia for peeling finish, soft wood, and gutter brackets pulling loose. Soffit panels are light and vulnerable; a dislodged panel gives wind and rain a direct route into the attic. This is also where you will spot the evidence of gutter overflow from last winter, a brown watermark trail down the fascia and onto the wall.

5. Look Down: The Bottom Edge

Crouch and sight along the lowest courses of siding. This zone endures splash-back, snow piling in cold snaps, and wicking from wet ground. Look for cladding in contact with soil or mulch, staining and swelling at board bottoms, and on rainscreened walls, confirm the vented gap at the base is open rather than packed with debris. Probe any suspect wood gently with a screwdriver. Soft material at the bottom edge means moisture has been resident, and it is worth a professional look before winter multiplies it.

6. Trace the Water: Gutters and Downspouts Above the Wall

Siding checks include the drainage above the siding, because an overflowing gutter turns a wall into a waterfall for five months. Confirm gutters are clear and slope to their outlets, seams are not dripping, and downspouts discharge away from the house rather than against the cladding. Undersized or failing systems announce themselves as green streaks and staining on the wall below. Our gutters and downspouts service page covers what correct drainage looks like if yours is due for attention.

7. Look Around: Trees and Projectiles

Finally, audit the wind hazards the storm will use. Overhanging branches abrade and puncture siding when they thrash; deadwood becomes airborne. Trim back anything within striking distance of walls. Then sweep the yard mentally: patio umbrellas, trampolines, empty planters, and loose fence boards all become projectiles in a serious gust, and impact damage is a common way otherwise sound siding gets breached mid-winter.

Turning Findings Into Action

Sort what you found into three piles. Cosmetic wear can wait for spring. Maintenance items like caulking, clearing, and trimming are your October weekend. Mechanical problems, meaning anything loose, soft, gapped at flashing, or already admitting water, deserve professional attention before storm season, both because the fix is cheaper now and because post-storm repair schedules fill fast once the first system rolls through.

Berkana Construction Management inspects and repairs siding across Maple Ridge and the Lower Mainland, and fall is exactly the season to put us to work. If your seven checks turned up something concerning, call (672) 771-6868 or book an assessment while the forecast is still friendly.