唔小心係牆到整左個細洞

首先要知道你這個洞有幾深,如果不是太深你可以到五金舖買以下其中一樣物料,由最淺到最深排列
a. 平底漿,輕微凹陷,不用開水白色的,干了後用 120 號沙紙磨一磨,補回乳膠漆或你精心調較的廣告彩
b. 填縫膠,略有深度的洞,由於填綘膠有顏色可供選擇,你可看看有沒有與你牆身接的如果有就無需補色
c.石膏粉,較深的洞,開水填補平後,用 120 號沙紙磨一磨,補回乳膠漆或你精心調較的廣告彩

幾個方法以第二個方法最簡單,費用大約 $ 20

go to hardware shop to buy a pack of filler (around $2). it is premixed. fill the crack or hole or.... , sand it with fine sandy paper when dried, apply same paint on it.
ask the guy in the hardware shop. they would give u very good advice.
wish these could do a little help!