房屋质量问题，也称房屋质量缺陷，是指房屋建筑工程的质量不符合工程建设强制性标准以及合同的约定。由此定义可知，并不是所有可见的房屋瑕疵都是质量缺陷，比如细微裂缝，非常微小的倾斜。如果这些瑕疵在工程建设标准容许的范围内，则不构成质量问题，购房者只能容忍。

    针对不同质量问题，采取正确维权方式。可以将房屋的质量问题分为三种：靠前，房屋主体结构质量不合格。从技术角度看，所谓“主体结构”是指房屋的主要构件相互连接、作用的平面或空间构成体。其必须具备符合技术要求的强度、韧性和稳定性，以确保承受建筑物本身的各种载荷。如：地基、承重墙等，这些部位出现结构性迸裂、倾斜、坍塌等问题，应当视为主体结构存在问题。第二，严重影响正常居住使用的质量问题。这是指由于房屋质量问题，严重影响买受人享用房屋的正常使用功能和用途的情形。如不能正常供水供电等。第三，其他质量问题。如房屋渗水、地面空鼓、墙皮脱落等。

Housing quality problems, also known as housing quality defects, refers to the quality of housing construction projects do not meet the mandatory standards of construction and the contract agreement. By this definition, not all visible defects are defects of quality, such as tiny cracks, very small inclinations. If these defects in the construction standards allowed within the scope, it does not constitute a quality problem, buyers can only tolerate. In view of the different quality question, adopts the correct safeguard right way. Can Be divided into three housing quality problems: First, the quality of the main structure of housing unqualified. From the technical point of view, the so-called main structure of the house refers to the main components of the interconnection, the role of the plane or space components. It must have the strength, toughness and stability required to withstand the various loads of the building itself. Such as: Foundation, load-bearing wall and so on, these parts appear structural crack, tilt, collapse and other problems, should be regarded as the main structure problems. Second, the serious impact on the quality of normal residential use. This refers to the quality of housing, seriously affect the buyer to enjoy the normal use of housing functions and uses of the situation. Such as the normal supply of water and electricity, etc. . Third, other quality issues. If the house seepage, the ground empty drum, the wall skin falls off and so on.