装修改造拆开墙才发现旧水管怎么谈

说一个比较接地气的经历。老房 bathroom remodel 拆除阶段里出现过墙打开后发现旧 galvanized pipe 腐蚀严重,原报价只包含更换 fixtures,客户觉得这是承包商应该预见的,当时现场不算失控,但继续拖下去肯定会影响客户信任。 我先做了最小范围止损,然后再查原因。我先拍照、请 plumber 出现场判断,再把 code requirement、材料和工时分成变更单说明,给客户两个方案和工期影响。这件事之后我更确定,remodel 最常见的坑就是 hidden condition,合同里不写清楚后面很难谈,特别是隐藏条件不能靠口头记忆。 给同行的建议很简单:报价前就说明墙内、地板下和旧管线风险,拆除后发现问题要先确认再施工。能提前讲清的规则,就不要留到出问题时再解释。装修同行对 hidden condition,一般合同里怎么写才清楚?

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