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Plumbing and electricity are essential, so people pay for services via a credit card. Electricians and plumbers are olding their own because people at home create problems / wear things out.

According to a plumber I know he says he's surviving but not making nearly what he did pre Covid. He thinks its because many people who were too busy before are now doing simple repairs themselves 

Their services are essential. They won't likely be going any where, some one usually has faulty electricity, or a leaky pipe. But even essential services may be a bit slower then usual.

I'm not a plumber / electrician, but I'm an essential worker. Business has been slower then usual at my work place, for the weeks of Black Friday and Cyber Monday.