上门服务英语怎么说呢？这个词组在英语中叫做"door-to-door service"。

来源：这个词组来源于英语中的"door"和"to-door"，"door"指的是门，而"to-door"指的是从一个地方到另一个地方。所以"door-to-door service"就指的是从一个地方到客户家门口的服务。

例句：

Our company offers door-to-door service for all of our customers. 我们公司为所有客户提供上门服务。

The salesmanperson went door-to-door trying to sell their products. 销售人员走村串门，试图推销他们的产品。

Door-to-door service is convenient for customers who have difficulty leaving their homes. 对于有困难离开家的客户来说，上门服务很方便。

总之，"door-to-door service"是一个指代上门服务的词组，它源自英语中的"door"和"to-door"，指的是从一个地方到客户家门口的服务。