Can new window air conditioners be serviced by a repair man?

Back in 1992, I briefly lived at a house that had a window air conditioner instead of central a.c. When it broke a man would come to the house (service man) He would come in and take the window ac apart and inspect and repair it there on the spot. Nowadays window air conditioners are made with foam, so can... show more Back in 1992, I briefly lived at a house that had a window air conditioner instead of central a.c.

When it broke a man would come to the house (service man) He would come in and take the window ac apart and inspect and repair it there on the spot.

Nowadays window air conditioners are made with foam, so can service men still service them?
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