Door sticking or lock turning difficult? Maintenance and adjustment before replacement
A door that closes with difficulty, a handle that becomes heavier, or a key that no longer turns smoothly in the lock doesn't always mean you need a new door or new lock.
Most of the time the problem:
hinges, screws, strike plate, multi-point lock system or door seal
comes from an adjustable component.
Regular maintenance can prevent these parts from being unnecessarily replaced prematurely.
Why do doors stick more in autumn?
Wooden doors in particular can be affected by changes in air humidity.
When indoor humidity rises in autumn, wood can shift by a few millimeters.
For this reason, if sticking starts in September or October, cutting or planing the door directly is not the right first step.
First:
where the door is rubbing → hinges → screws → strike plate
should be checked.
Sometimes just a 1–2 mm adjustment is enough.
Small maintenance on hinges makes a big difference
Hinges carry the weight of the door for years.
Over time, screws can loosen or the hinge pin can dry out.
During maintenance, screws are tightened in a controlled manner and the hinge pivot point is lightly lubricated with an appropriate product.
Using too much product here is not correct.
The goal is not to leave the part soaked in oil, but to reduce friction.
Not every oil goes into a lock
The product used in a cylinder lock is important.
The blog recommends using PTFE spray or graphite.
General-purpose oils like WD-40 can provide short-term relief but the layer they leave behind can trap dust and dirt.
In the long run, the key may become even harder to move.
For this reason, the product used for hinges does not have to be the same as the product used inside the cylinder.
Adjustment on multi-point locks
Many external doors in the Netherlands have multi-point locks.
When the door closes, not only the main lock but also the additional hooks or rollers above and below sit in the strike box.
As the door shifts by a few millimeters over time, these points can start to rub against their counterparts.
As a result, the door handle becomes increasingly heavy.
Rather than always replacing the entire mechanism, first:
hooks → rollers → strike boxes → door alignment
is checked.
Door seals are also part of maintenance
Even if an external door closes properly, cold air can come in from the edges.
The reason is often an old weather seal.
The rubber hardens over time, gets compressed and cannot return to its original shape.
The blog gives approximately 5–10 years lifespan for good quality silicone or EPDM seals, and approximately 1–3 years for simple adhesive foam seals.
If the seal doesn't spring back when you squeeze it with your fingers, it may be time to replace it.
The bottom threshold should not be forgotten
Air doesn't just enter from the side of the door.
If the weather brush or threshold at the bottom doesn't get close enough to the floor, there can be a constant air passage there.
For this reason, an external door should be checked not just on the right and left edges, but on all four sides.
A gap at the bottom of an internal door is sometimes necessary
The opening at the bottom of an internal door is not always a mistake.
Especially in homes with mechanical ventilation, air passage is needed from rooms toward the bathroom and toilet where air is drawn.
The blog gives approximately 3 mm around the door frame as a practical reference, and approximately 10–20 mm at the bottom if ventilation is required.
For this reason, extending the door too far down can also affect the operation of the ventilation system.
Average lifespan of components
Approximate values from the blog:
Internal door hinge: 20–30 years
Cylinder lock: 15–25 years
Multi-point external door lock: 15–20 years
Door seal: 5–10 years
Door handle and rose: 15–30 years.
These are not fixed warranty periods.
Usage intensity, external weather conditions and maintenance schedule seriously affect lifespan.
Sometimes the problem is not in the door but in the frame
In older homes, even if the door itself is sound, the frame may be bent.
The floor may have settled or the old wooden frame may have shifted over time.
If there is an 8 mm gap on one side while the door is completely against the frame on the other side, installing new hinges alone may not solve the problem.
In this case, the door, frame and surrounding structure must be evaluated together.
Approximate 2026 costs
According to Randstad price indicators in the blog:
Internal door rehang and adjustment: €75–€150 / door
Security cylinder replacement: €45–€120
External door adjustment + seal renewal: €150–€350 / door
Door adjustment work hourly rate: approximately €55–€85.
The actual cost varies depending on whether the problem is only mechanical adjustment.
If frame repair, wood rot, door cutting or repainting is needed, the scope of work expands.
Maintenance work can be planned together
If several doors in the house are closing with difficulty, external door seals are worn, or wooden frames need maintenance, you don't have to think of them as separate individual jobs.
Door adjustments, hinges and locks, weather seals, minor carpentry repairs and paint maintenance can be combined in the same work schedule.
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