You can start your own business as an appliance installer, and be your own boss, and make good money in this field. Many homeowners buy brand new appliances all the time. Lots of them don't know how to install them, themselves. When a new home owner, buys a brand new house, they usually like to get brand new refrigerators, ovens, microwaves, hoods, dishwashers, and more, installed.
Sometimes, an investor will buy a house, to fix it up, and then, resell it. Usually, they will buy brand new appliances from an appliance, electronic, or home improvement store. The store that sold the items might just only drop them off. They still need to be hooked up, and working properly, and you know if you have someone from the home improvement store come out to hook them up, you will pay the most amount of money.
That is where you come in. You can also pick up the appliances yourself, thus avoiding a delivery charge, that you can pocket yourself to make more money, by charging your customer, a pick up and delivery charge, but make it cheaper than the store will do it for, and you can't lose.
You can make up a flier, saying that you install appliances for such and such a price. You could charge a certain price for each appliance, and if you hook up more than one, you can offer them a discount on hooking up more than one while you're already there. You could network and send these fliers out to real estate agents, real estate investors, in your area. You could drive around, and for every house with a for sale sign in the front yard, you could leave one of your fliers, because whoever the new home owner will be, they might want to install brand new appliances.
You could also drive around to homes you see under construction, as pretty soon they will be having brand new appliances that need to be hooked up. You can also run a small ad in your local newspaper advertising that you hook up major appliances.