The most misleading thing about a forced door is that it often still closes. The lock has been replaced, the splintered trim has been filled, and from three feet away everything looks normal. Six weeks later the door starts sticking, the deadbolt misses its hole, or a gust of wind pops it open — and nobody connects it to the break-in, because the break-in was “fixed”.

Forced entry loads a door in a direction it was never designed for. The damage that matters is usually structural, hidden inside the jamb and the hardware, and it is not visible from the corridor.

Where the force actually goes

A kicked or pried door does not fail at the lock. The lock bolt is steel and the door slab is usually fine. What gives is the softest link in the chain: the strike side of the frame. The bolt acts as a lever and drives the jamb away from the stud behind it, splitting the shims, crushing the wood, or — on a metal frame — bowing the jamb face outward.

Once the jamb has moved, every other measurement on the door is wrong. The reveal changes, the bolt no longer lands in the centre of its hole, and the door needs more force to latch. Owners compensate by slamming it, which finishes off whatever survived.

Jamb spread is the damage nobody measures

The test is simple and takes a minute. Close the door and look at the gap between the slab and the frame down the strike side. It should be even from top to bottom, roughly the thickness of a coin. A gap that widens toward the middle means the jamb has bowed away and is no longer supported behind the strike. Filling and painting hides this perfectly while changing nothing.

Bent hinges and the door that sags a month later

Hinges take the second half of the impact. A kick pushes the slab inward and the hinge knuckles absorb that push in shear. Hinge leaves bend slightly, screws pull through their pilot holes, and the hinge-side jamb picks up hairline cracks around the screw lines.

None of this shows immediately, because the door is still hanging. It shows up as gradual sag: the top corner on the handle side starts to drop, the door catches the sill, and the latch climbs above the strike. If a door started dragging a few weeks after a break-in, the hinges are where to look — and re-screwing them into the same damaged holes will not hold.

On commercial openings the same logic applies with higher stakes, because a sagging leaf on a heavy door also drags the closer out of adjustment and can stop the door latching at all. That is the point where a repair becomes a proper commercial door repair rather than a hardware swap.

Aluminium storefront doors crack where you cannot see it

Aluminium doors behave differently from wood or steel. They are built as a frame of hollow extrusions screwed and pinned together at the corners, with glass carrying some of the rigidity. Force does not dent them much; it racks them.

The failure points are the corner joints, especially the bottom rail where it meets the stile. A racked corner opens a hairline gap in the joint, and the door stops being square. The symptoms are specific: the door drags on one corner, the top rail no longer meets the header evenly, the pivot or the bottom arm develops play, and the glass gasket starts to wrinkle in one corner because the frame is twisting around it.

Because the extrusion is hollow, a joint can be effectively loose while looking perfect under paint or anodising. Anyone assessing an aluminium door after forced entry should be checking squareness and corner tightness, not just the cylinder — the kind of check aluminium door repair work turns on.

The hardware that gets quietly overwritten

Three items commonly get reinstalled when they should be replaced.

• The strike plate. A bent strike still accepts the bolt, but its lip is no longer square to the frame, so it wears the bolt and pulls the door out of alignment. Strikes are cheap; they should never be straightened and reused.
• The closer arm. A forced door drives the closer arm past its travel. A bent arm changes the closing geometry permanently, which is why some doors slam or fail to latch after an incident.
• The reinforcement behind the lock. On hollow metal doors there is a channel or box supporting the lock case. If it has crushed, the new lock is bolted into a void and will loosen within months.

Why doing it properly matters more than it looks

A door that was forced once and repaired cosmetically is easier to force the second time, not harder. The jamb has already split, the screws are in enlarged holes, and the frame is no longer bearing against solid material behind the strike. Insurers and landlords tend to focus on whether the door closes; the question that matters is whether the frame still has anything to hold onto.

The proper sequence is to restore the structure first — reset or replace the jamb section, install solid blocking behind the strike, use long screws into framing rather than trim, then fit new hardware to the corrected opening. That order is what separates real break-in repair from a patch, and it is why the visible carpentry is the last step rather than the first.

A five-minute check after any forced entry

Open and close the door slowly and listen for a scrape at one corner. Look down the strike-side gap for an even reveal. Push the closed, unlocked door at the handle and see whether the jamb flexes. Check that each hinge screw is tight and that no hinge leaf is bowed. On an aluminium door, measure the two diagonals of the leaf — if they differ, the door is racked and no amount of hardware will fix it.

FAQ

The door closes fine — do I still need it looked at?

Yes. Closing tells you the slab still fits; it says nothing about whether the frame is still anchored. That is the part that resists the next attempt.

Can a split jamb be repaired, or does the frame need replacing?

Often a jamb section can be cut out and replaced with solid material and proper blocking behind the strike. Full frame replacement is for frames that have moved out of square or rusted through.

Why did my door start sticking a month after the break-in?

Almost always hinge and screw damage settling. The door was holding on damaged fixings, and normal use finished the job.

Is a stronger lock the answer?

Only after the frame is sound. A high-grade deadbolt in a split jamb is a good lock attached to nothing.