In the tide of globalized economy, the adjustment of tariff policies often affects the whole body. On April 9, 2025, the Trump administration officially imposed a 34% tariff on Chinese building materials, and the tariff war is still ongoing. This decision is like a bombshell, which has caused an uproar in the construction market. From single-family houses in Florida to bathroom renovations in New York apartments, the price of quartz surface products has soared by 40% in just three weeks. This tariff war has not only changed the supply and demand pattern of the building materials market, but also had a profound impact on the lives of ordinary American homeowners. This article will deeply analyze how this tariff war has reshaped the cost logic and consumer choices of the US construction market, and how it specifically affects the renovation plans and economic burdens of ordinary homeowners.