Metal entrance door sticking or hard to close — why and what to do

Why a door starts rubbing on the frame exactly when the temperature swings

A steel door leaf is a metal skin over a frame, often with foam insulation inside, and metal expands and contracts with temperature more than the wood or plaster around it. When the weather turns cold, or the heating season starts and the temperature difference between the stairwell and outside grows, the door and frame move slightly against each other, and a gap that was fine in summer becomes a scrape.

In panel flats this is often made worse by the building itself moving a little over the seasons, particularly in older blocks where the entrance door frame was fitted directly into the concrete opening decades ago. In a private house, a door in an exterior wall is exposed to outdoor temperature on one side and heated air on the other, so the same effect is stronger.

None of this means the door is faulty. It means the hinges, the frame, or the seal need a small adjustment to match the season, which is normal maintenance on a steel door rather than a sign it was badly made or fitted.

What to check before you turn anything

Before adjusting hinges or forcing the lock, work out where the door actually touches. Close it slowly and watch where the leaf meets the frame — top corner, bottom corner, along the lock side, or only near the handle. This tells you whether the problem is the door hanging slightly wrong, the frame having moved, or just the rubber seal being compressed or swollen.

Check the seal itself. A perished or swollen weatherstrip around the frame can make a door feel tight even when the hinges and frame are perfectly fine, and replacing a seal is far cheaper than adjusting hinges unnecessarily. Also check whether the door has always been slightly stiff or whether this is new — a door that has never closed easily probably has a fitting issue, not a seasonal one.

• Where along the frame does the door actually touch or scrape?
• Is the rubber seal cracked, swollen, or coming away from the frame?
• Does the key turn freely once the door is pulled fully shut, or only with the handle lifted?
• Has the door sagged visibly, so the top corner has dropped towards the hinge side?
• Is this new, or has the door always needed a bit of force?

Hinge adjustments you can do yourself

Most steel entrance doors have adjustable hinges with a screw or bolt that moves the leaf slightly up, down, sideways, or in and out. If the door only rubs at one corner, a small turn — a quarter turn at a time, checking after each — often solves it. The adjustment points are usually on the hinge itself, sometimes under a small cap or behind the pin.

Work with the door open first to see how the hinge moves, then test with it closed. Loosen rather than force anything, and keep track of how many turns you make so you can reverse them if the door ends up worse. A can of light machine oil on the hinge pins is worth doing at the same time if the door has started to feel heavy or the hinges creak.

If you are not confident which screw does what, or the hinges are stiff and reluctant to move, this is a reasonable point to stop and call in fitting work rather than risk stripping a screw or forcing a hinge that then needs replacing. Metal fitting adjustments like this start from 45 € per hour and are usually a short job.

When it is the frame, not the hinges

If the door rubs along one whole side rather than at a single corner, or if it has started dragging on the floor, the frame itself may have moved rather than the hinges being out of line. This happens when the frame was not fixed solidly enough into the wall opening, when the wall around it has settled, or when the frame has twisted slightly over years of use.

A frame problem cannot usually be solved by hinge adjustment alone, because the door is being asked to close into an opening that is no longer square. Signs include the gap around the door being noticeably wider at one side than the other, or the door catching on the floor threshold on one side only.

This is worth having looked at rather than guessed at, since forcing a misaligned frame back into shape without the right tools can crack plaster, damage the fixing points, or make the door harder to seal properly afterwards.

When the problem is in the lock, not the frame

If the door closes into the frame without scraping but the key only turns once you lift or push the handle, or the bolt does not reach the strike plate cleanly, the issue is usually alignment between the lock and the strike plate rather than the door hanging wrong. This can happen alongside a seasonal shift, since a few millimetres of movement in the door is enough to throw the bolt off centre.

Sometimes the strike plate itself can be adjusted or filed slightly to match, and sometimes the lock mechanism has genuinely worn and needs replacing rather than realigning. Forcing a key in a misaligned lock is a common way to snap a key or damage the cylinder, so if lifting the handle becomes a daily habit, it is worth having it looked at rather than living with it.

When replacing the whole door works out cheaper

A door that is otherwise sound is almost always worth adjusting rather than replacing — hinge work and lock alignment are quick jobs compared with a new door. Replacement becomes the more sensible option when the frame itself is bent or rusted through, when the door has been forced repeatedly and the fixing points are damaged, or when an older door's insulation and seals are worn out enough that no amount of adjustment keeps out draughts.

In panel flats this point is often reached when the original Soviet-era steel door, sometimes decades old, has been adjusted as far as it will go and still does not seal properly. A full door installation, including fitting and finishing around the frame, starts from 120 € per job, and for a door in that condition it usually costs less over time than repeated call-outs to fix the same recurring problem.