First of all, we should understand that the security doors in our country are classified into four grades: A, B, C and D. Grade A is the best quality and the highest anti-theft grade, followed by EPDM. Whether the developer's security door needs to be replaced or not, we should first understand which level the security door used by the developer belongs to.

if it belongs to grade a, there is really no need to replace it! Because the level is already the highest, if you are worried that the developer has a lock, you just need to replace a lock cylinder. Some people like to use smart locks, so it's convenient to replace them.

if the security door used has a low security level, such as C or D, you can replace it with a higher level. Because from the cost of decoration, the price of replacing a metal door is not cheap. When decorating, other expenses have been spent a lot, and the budget itself is tight, so there is no need to change things that are not necessary.

some people may think that the color of the door is not good-looking, which is not consistent with the overall home decoration style. Then just change the color of the door and buy a bucket of paint to brush it.

and now the quality of doors and windows used by many developers is not bad, and the neighbors next door have not replaced the doors and windows, so the whole floor looks particularly unified. I changed it myself, but it seemed a little abrupt.

if you want to replace the security door, you must start construction as soon as possible and replace it directly at the very beginning. never wait until the cement worker and the wall are painted before replacing the security door.

at this time, the replacement will cause some damage to the wall, and it will be necessary to repair the wall again at that time, which is not worth the candle. Some people think that they will be safer after changing the security door, but this is not the case. Everyone's door is the same on the first floor, but your house is different, and it is more likely to be remembered by thieves.