Door is visibly sagging
The top corner has dropped and the door no longer sits square in the opening.
Door alignmentServices / Commercial Door Hinges
Commercial Door Continuous Hinge Replacement
A commercial door that drops, drags, pulls away from the frame or repeatedly fails at standard hinges may need a full-length geared continuous hinge. BoardUp provides emergency and scheduled continuous hinge replacement across Toronto and the GTA.
Door typeCommercial entrance
SymptomSagging or pulling away
HardwareGeared continuous hinge
ServiceEmergency or scheduled
ResultAligned and supported door
Commercial hinge failure
When the door weight is no longer supported evenly, the entrance stops working.
A heavy commercial or glass door can drop at the top corner, drag on the threshold, miss the strike or pull fasteners out of the hinge side. A full-length continuous hinge spreads the door load along the frame instead of concentrating it at a few hinge points.
- Top corner of the door has dropped
- Door drags on the threshold or frame
- Butt hinges or fasteners keep loosening
- Hinge stile or frame attachment is failing
- Door no longer latches or locks reliably
- Heavy glass or aluminum entrance door needs full-length support
What to look for
Damage patterns that point to this service
Photos of the door, frame and hardware show whether the frame, hinge or hardware needs repair.
Door drags on the floor
The lower edge rubs the threshold, floor or frame every time the door moves.
Dragging doorHinges pull loose repeatedly
Standard hinge screws or hinge points no longer hold the weight of the door.
Repeated hinge failureDoor will not latch
The latch misses the strike because the door has shifted on the hinge side.
Closing and lockingFrame or hinge stile is stressed
The door load has damaged the hinge-side attachment or pulled the door away from the frame.
Hinge-side inspectionBusiness entrance cannot close
A failed hinge can leave a storefront or commercial entrance unable to secure after hours.
Emergency responseHow we handle it
A clear repair sequence
We assess the failure point, stabilize the entrance and restore reliable closing and locking.
- 1
Stabilize the door
We control the door so it does not continue dropping, twisting or damaging the frame.
- 2
Confirm hinge and frame
We measure the door, verify the hinge length and inspect the frame and hinge-side material.
- 3
Install the continuous hinge
The failed hinge setup is removed and the full-length geared hinge is fitted to distribute the load.
- 4
Align and test
We adjust the door and test swing, closer, latch, lock, threshold clearance and secure closing.
What affects continuous-hinge replacement cost
Door height and material, hinge type, existing hinge and fastener damage, frame condition, door weight, access and the alignment work required affect the quote. We provide the total price before work begins, and no additional charge is added without customer approval.
A sagging door caused by gradual hinge or hardware wear is normally a maintenance repair, not sudden damage. Send photos of the full door, top and bottom clearances and hinge side so we can confirm the likely scope before service.
Related services
Other door services connected to this problem
Choose the service that matches the part of the entrance that failed.
Door Frame & Jamb Repair
For a split, pulled or damaged frame that must be repaired before the hinge can hold correctly.
Commercial Door Repair
For combined door, frame, lock, closer or glass damage after impact or forced entry.
Commercial Entrance Securing
For a business entrance that cannot close and needs temporary emergency control.
Common questions
What customers ask before door repair
What is a continuous hinge?
A continuous hinge runs almost the full height of the door. A geared continuous hinge spreads the door weight along the frame, reducing stress at individual hinge points.
When does a commercial door need a continuous hinge?
Common signs include sagging, dragging, repeated hinge failure, a dropped top corner, hinge-side movement or a door that no longer latches because it has shifted.
Is emergency continuous hinge replacement available?
Yes. Emergency response is available when a commercial door cannot close or secure. Whether the final hinge can be installed immediately depends on the correct hinge length and finish being available and the door and frame being suitable.
Can a continuous hinge fix a damaged frame?
The hinge can improve weight distribution, but it cannot replace a frame repair when the frame or hinge-side attachment is already damaged. We inspect both and connect the repairs when needed.
Do you install continuous hinges on glass and aluminum storefront doors?
Yes, when the door and frame are compatible with the selected continuous hinge. We confirm the door construction, frame condition, closer and locking operation before installation.