Find out the main reason for the loud noise. If it is because the lock tongue is loud, drop some cooking oil on the lock tongue. If the door closes loudly because of drooping, you can adjust the lock on the door frame downward with a steel file. If it is too tight to close the door loudly, you can loosen the bolt appropriately.
Usually, when opening and closing the door, you should pay attention to the action slightly lighter, and you should not use too much force, so that the door is not easy to break, otherwise, when closing the door too hard, the hinge between the door is also easy to be damaged. The noise of closing the door may be due to the failure to properly maintain the door. If the door is opened and closed by force at ordinary times, violent impact will easily lead to loose marks on the door parts, make noise and shorten its service life.
Don't splash too much water on the door at ordinary times After the door is polluted by water, it will sag slightly due to the influence of gravity, so it will have some contact with the ground, and the door frame will be uneven, which will also increase friction. In addition, the hinge is easy to rust after splashing water, which increases the sound of friction.
Installing a rubber strip at the part where the door frame collides with the door can not only effectively prevent wind and dust, but also reduce the collision sound of the door to a certain extent.
In addition to daily behavior, the noise of the door may be due to the quality problem of the door or the deviation in the installation process. You can contact a professional to check the cause and solve it.