Getting dock doors and seals ready for winter in Langley

The short version

Before winter, every dock door should get a spring and cable check, a balance and safety reverse test, fresh lubrication on rollers and hinges, and a close look at the bottom seal and perimeter weatherstripping. In Langley, colder nights, frost and snow stress springs and freeze seals to the slab, so worn springs and torn seals are best replaced in fall, planned around shipping, rather than after a door fails.

Frost and snow inland stress springs, so worn ones are best replaced in fall
Torn bottom seals let in cold air and can freeze to the slab
Lubricate rollers, hinges and bearings before the cold stiffens them
Test balance and safety reverse on every dock door, not only the problem ones
Book the work between shipping peaks so only one door is out at a time

Why winter hits Langley docks harder

Langley sits further inland than the coastal cities. It gets colder winter nights, more frost and more snow. Around Aldergrove and Fernridge, a cold snap can follow a week of rain, and that's when dock doors start to fail. Springs that were tired in October break on the first hard frost. Seals that were already torn freeze to the slab. A door that was slow in the fall stalls when its hardware stiffens.

None of that has to be a surprise. Most winter door failures show warning signs weeks before they happen.

The dock door winter checklist

Here is what each dock door should get before the cold settles in.

Springs and cables

Look for gaps between coils, rust and stretched springs
Check cables for fraying, rust and uneven winding on the drums
Note any door where the springs are near the end of their life

Cold makes worn spring steel more likely to snap. Replacing a flagged spring in fall costs the same as replacing it in January, but you choose when the door is out.

Balance and safety tests

Balance: the door should stay put at mid-height
Safety reverse: the door should reverse on contact and when the photo eyes are blocked
Limits: the door should open fully for high trailers and close fully to the floor

A door out of balance makes the operator work harder, and cold makes it worse.

Rollers, hinges and track

Lubricate rollers, hinges and bearings
Replace rollers that are cracked, flat or wobbling
Tighten loose track brackets and check for bends from forklift contact

Bottom seals and weatherstripping

The bottom seal and side weatherstripping on a dock door take a beating from trailers, forklifts and weather. Look for:

Tears and missing pieces along the bottom
Daylight around the sides or top of a closed door
Drafts and water on the dock floor after rain

Worn seals let cold air and rain onto the dock. In snow, a damaged bottom seal can also freeze to the slab, and a door that's frozen down can strain the operator or tear the seal further when it's opened.

What to do about a frozen door

If a dock door is frozen to the slab, don't keep pressing the button. Clear snow and ice from the bottom, and free the seal before opening. If the operator strains and the door doesn't lift, stop and call it in. Forcing it can tear the seal or damage the bottom section.

Plan the work around shipping

Late fall is often busy at the dock, so we plan visits around your shifts and shipping windows. Most doors take under an hour for a service visit. We work through the dock one door at a time, so the rest stay open for trailers.

Each door is written up after the visit, with a note on what was adjusted and what still needs repair. That gives you a short, clear list of what to fix before winter and what can wait. You get a quote before any repair work starts.

A short list for late fall

If you only get a few things done before the cold:

Replace springs flagged as worn
Replace torn bottom seals on the busiest dock doors
Test the safety reverse on every door
Lubricate rollers and hinges across the dock

Those four jobs deal with the parts most likely to fail on a Langley dock once frost and snow arrive.