Box Truck Door Repair in Austin, TX

Roll-up doors

A roll-up door is a balanced system. The door is heavy; a torsion or counterbalance spring does most of the lifting. When a door gets hard to raise, will not stay open, or slams down, it is almost always the spring losing tension — and the fix is re-tensioning or replacing it.

Please do not adjust a roll-up door spring yourself. Those springs store a great deal of energy, and releasing one without the right winding bars and procedure causes serious injuries every year. It is a quick, safe job for us.

What else goes wrong on a roll-up door:

• Tracks — bent by a dock strike or a load that shifted, causing the door to bind or jump
• Rollers — worn, flat-spotted, or seized, making the door stiff and noisy
• Cables — fraying where they run, and a snapped cable drops the door
• Slats and panels — dented sections that no longer roll cleanly
• Seals — the bottom seal, which is what keeps water off the floor
• Locks and latches

Swing doors

Rear swing doors fail at the hinges, the lock rods, and the gaskets. A door that will not close flush has usually dropped at the hinge; one that will not seal has a worn gasket; and a lock rod or cam lock that will not engage is often bent. All three are straightforward to put right, and a door that seals and locks properly is what keeps the load dry and secure.

Side doors

Curbside and roadside doors take the same wear on a smaller scale — hinges, latches, seals, and hold-opens. We repair them the same way.

Water in the cargo area

If water is getting in, it is almost always a door seal or a panel seam, and it is worth chasing down early — water under the cargo is what rots and delaminates box floors. We find where it is coming in and replace the seal. See truck body repair for floors and panels.

Parts, and the truck underneath

We supply replacement door components — springs, tracks, rollers, cables, seals, hinges, and locks — for bodies from every major truck body maker, and fit them. And because we service the chassis too, the truck in for a door can have its service interval done on the same visit. Two or more vehicles is a fleet.

Call 512-717-2777.

Common questions

My roll-up door will not stay open. What causes that?

Almost always spring tension. Roll-up doors are balanced by a torsion or counterbalance spring, and as it loses tension the door gets heavier and will not stay up. The fix is re-tensioning or replacing the spring — and it is a job for someone with the right tools, because those springs store a great deal of energy.

Can I adjust the roll-up door spring myself?

We would strongly advise against it. A roll-up door spring is under high tension, and releasing it without the correct winding bars and procedure can cause serious injury. It is quick for us to do safely.

My door is hard to open and jumps in the track. Is it the spring?

Sometimes, but more often the track or the rollers. Bent tracks from a dock strike, worn or seized rollers, and a dented door panel all cause binding and jumping. We check the track alignment and the rollers before assuming it is the spring.

Do you fix swing doors too?

Yes — hinges, lock rods and cam locks, and gaskets. A swing door that will not seal usually has a worn gasket or a hinge that has dropped, and a lock rod that will not engage is often bent. Both are straightforward.

Water is getting into the cargo area. Where is it coming from?

Usually a door seal — the bottom seal on a roll-up door, or the gasket on a swing door — or a panel seam. Water getting in is what rots floors, so it is worth finding early. We trace it and replace the seal.